GENERAL AMERICAN TRANSPORTATION CORP /NY/
8-K, 1996-08-26
TRANSPORTATION SERVICES
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                               ------------------
 
                                    FORM 8-K
                                 CURRENT REPORT
 
                       Pursuant to Section 13 or 15(d) of
                      the Securities Exchange Act of 1934
 
                               ------------------
 
        Date of Report (Date of earliest event reported) August 22, 1996
 
                  GENERAL AMERICAN TRANSPORTATION CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                             <C>                             <C>
          New York                         2-54754                       36-2827991
(State or other jurisdiction             (Commission                  (I.R.S. employer
      of incorporation)                 file number)                 identification no.)
          500 West Monroe Street, Chicago, Illinois                         60661
          (Address of principal executive offices)                       (Zip Code)
</TABLE>
 
       Registrant's telephone number, including area code (312) 621-6200
 
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ITEM 7. (FINANCIAL STATEMENTS AND EXHIBITS)
 
     The following documents are being filed in connection with, and
incorporated by reference into, the Registration Statement on Form S-3 (File No.
33-64697) of General American Transportation Corporation ("GATC"), declared
effective on December 7, 1995.
 
<TABLE>
<CAPTION>
EXHIBIT
NUMBER
- ------
<S>     <C>   <C>
  1       --  Form of Underwriting Agreement between GATC and the Underwriters named therein.
  4.1     --  Form of Pass Through Trust Supplement No. 6 between GATC and the Pass Through
              Trustee relating to the Series 1996-1A Pass Through Certificates.
  4.2     --  Form of Pass Through Trust Supplement No. 7 between GATC and the Pass Through
              Trustee relating to the Series 1996-1B Pass Through Certificates.
  4.3     --  Form of Trust Indenture and Security Agreement between the Owner Trustee and the
              Indenture Trustee relating to the Equipment Notes.
  4.4     --  Form of Equipment Note to be issued by the Owner Trustee (included in Exhibit 4.3).
  4.5     --  Form of Participation Agreement among GATC, the Owner Trustee, the Owner
              Participant, the Indenture Trustee and the Pass Through Trustee.
  4.6     --  Form of Equipment Lease Agreement between GATC and the Owner Trustee relating to
              the Equipment Notes.
  4.7     --  Form of Trust Agreement between the Owner Trustee and the Owner Participant.
</TABLE>
 
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                                   SIGNATURES
 
     PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934, THE
REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON ITS BEHALF BY THE
UNDERSIGNED, THEREUNTO DULY AUTHORIZED.
 
                                          GENERAL AMERICAN
                                            TRANSPORTATION CORPORATION
 
August 22, 1996
 
                                          By:         /S/ BRIAN A. KENNEY
                                            ------------------------------------
 
                                        3

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                                                                       Exhibit 1





                                  $106,835,000

                  GENERAL AMERICAN TRANSPORTATION CORPORATION

                7.50% PASS THROUGH CERTIFICATES, SERIES 1996-1A
                7.86% PASS THROUGH CERTIFICATES, SERIES 1996-1B




                             UNDERWRITING AGREEMENT





AUGUST 22, 1996





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                                                                 August 22, 1996




Morgan Stanley & Co.
  Incorporated
Salomon Brothers Inc
c/o Morgan Stanley & Co.
  Incorporated
1585 Broadway
New York, New York  10036

Dear Sirs:

                 General American Transportation Corporation, a New York
corporation (the "Company"), in connection with the financing of certain rail
equipment, proposes that The First National Bank of Chicago, as trustee (the
"Pass Through Trustee") of the GATC 1996-1 Pass Through Trusts (the "Pass
Through Trusts"), established pursuant to the Pass Through Trust Agreement,
dated as of August 1, 1992 (the "Pass Through Trust Agreement"), and two
separate Pass Through Trust Supplements, each dated as of August 28, 1996 (each
a "Pass Through Trust Supplement" and collectively, the "Pass Through Trust
Supplements"), each between the Pass Through Trustee and the Company, issue and
sell $106,835,000 aggregate principal amount of Pass Through Certificates,
Series 1996-1 (the "Offered Certificates"), consisting of the aggregate
principal amount of Offered Certificates with the interest rates and final
distribution dates set forth on Schedule A hereto, to you, as Underwriters (the
"Underwriters").

                 All capitalized terms used in this Agreement and not otherwise
defined herein shall have the meanings specified in the Pass Through Trust
Agreement, or, if not so defined therein, the meanings specified in the
Indentures referred to in such Pass Through Trust Agreement.

                                       I.

                 The Company hereby agrees to cause the Pass Through Trustee to
sell to the several Underwriters, and the Underwriters, upon the basis of the
representations and warranties herein contained, but subject to the conditions
hereinafter stated, agree severally and not jointly, to purchase from the Pass
Through Trustee, the respective principal amount of the Offered Certificates
set forth in Schedule I hereto opposite their names at 100% of their principal
amount (the "purchase price") plus accrued interest, if any, from August 28,
1996 to the date of payment and delivery.





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                                      II.

                 The Company represents and warrants to and agrees with each of
the Underwriters that:

                 (a)      The Company meets the requirements for use of Form
         S-3 under the Securities Act of 1933, as amended (the "Securities
         Act"), and has prepared and filed on such Form with the Securities and
         Exchange Commission (the "Commission") a registration statement (File
         No. 33-64697) (as amended at the date hereof, including the exhibits
         thereto and the documents incorporated by reference therein, the
         "Registration Statement") relating to certain pass through
         certificates (including the Offered Certificates) and the offering
         thereof from time to time in accordance with Rule 415 under the
         Securities Act.  The Registration Statement includes a basic
         prospectus referred to below which, as supplemented from time to time,
         will be used in connection with all offerings of such pass through
         certificates.  The Registration Statement has been declared effective
         by the Commission.  As provided in Article VI, a prospectus supplement
         reflecting the terms of the Offered Certificates, the terms of the
         offering thereof and the other matters set forth therein has been
         prepared and will be filed together with the basic prospectus referred
         to below pursuant to Rule 424 under the Securities Act (such
         prospectus supplement, in the form first filed on or after the date
         hereof pursuant to Rule 424, is herein referred to as the "Prospectus
         Supplement").  The basic prospectus included in the Registration
         Statement and relating to all offerings of pass through certificates
         under the Registration Statement, as supplemented by the Prospectus
         Supplement, is herein called the "Prospectus," except that, if such
         basic prospectus is amended on or prior to the date on which the
         Prospectus Supplement is first filed pursuant to Rule 424, the term
         "Prospectus" shall refer to such basic prospectus as so amended and as
         supplemented by the Prospectus Supplement, in either case including
         the documents filed by the Company with the Commission pursuant to the
         Securities Exchange Act of 1934, as amended (the "Exchange Act"), that
         are incorporated by reference therein.  Any reference herein to the
         terms "amendment" or "supplement" with respect to the Registration
         Statement, to the Prospectus or to any preliminary prospectus shall be
         deemed to refer to and include any documents filed with the Commission
         under the Exchange Act after the date hereof, the date the Prospectus
         is filed with the Commission, or the date of such preliminary
         prospectus, as the case may be, and incorporated therein by reference
         pursuant to Item 12 of Form S-3 under the Securities Act.

                 (b)      On the original effective date of the Registration
         Statement, on the effective date of any post-effective amendment
         thereto, on the date of the filing by the Company of any Annual Report
         on Form 10-K after the original filing of





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         such Registration Statement, on the date of the filing by the Company
         of any Quarterly Report on Form 10-Q after the original filing of such
         Registration Statement, and on the date hereof, such Registration
         Statement complied in all material respects with the applicable
         requirements of the Securities Act and the rules and regulations of
         the Commission thereunder (the "Securities Act Regulations"), and the
         Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"),
         and the applicable rules and regulations of the Commission thereunder
         (the "Trust Indenture Act Regulations") and did not include an untrue
         statement of a material fact or omit to state a material fact required
         to be stated therein or necessary to make the statements therein not
         misleading; the Registration Statement and any amendments thereof, on
         the date hereof, and the Prospectus, and any amendments thereof and
         supplements thereto, as of their respective filing or issue dates and
         at the Closing Date (as defined below), comply and will comply in all
         material respects with the requirements of the Securities Act, the
         Securities Act Regulations, the Trust Indenture Act and the Trust
         Indenture Act Regulations; and the Prospectus, and any amendments
         thereof and supplements thereto, as of their respective filing or
         issue dates, on the date hereof and at the Closing Date (as defined
         below), did not include or will not include an untrue statement of a
         material fact or omit or will omit to state any material fact
         necessary to make the statements therein, in light of the
         circumstances under which they were made, not misleading; except that
         this representation and warranty does not apply to statements or
         omissions made in reliance upon and in conformity with information
         relating to any Underwriter furnished in writing to the Company in
         connection with the Registration Statement or the Prospectus or any
         amendment or supplement thereto by such Underwriter through you or on
         your behalf expressly for use in the Registration Statement or the
         Prospectus, or to statements or omissions in that part of the
         Registration Statement which constitutes the Statement of Eligibility
         under the Trust Indenture Act (Form T-1) of the Trustee.

                 (c)      The statements in the Prospectus describing (i) the
         Offered Certificates, (ii) the Operative Agreements and (iii) the
         terms of the offering, insofar as such statements constitute a summary
         of the legal matters, documents or proceedings referred to therein,
         fairly summarize the information referred to therein.

                 (d)      The Company has been duly incorporated, is validly
         existing as a corporation in good standing under the laws of the State
         of New York, it has the corporate power and authority under such laws
         to own, lease and operate its properties and conduct its business as
         described in the Prospectus and to enter into and perform its
         obligations under this Agreement, the Pass Through Trust Agreement and
         each of the Operative





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         Agreements to which it is a party; and it is duly qualified to
         transact business as a foreign corporation and is in good standing in
         each jurisdiction in which the conduct of its business or the
         ownership or leasing of its property requires such qualification,
         except to the extent that the failure to be so qualified or be in good
         standing would not have a material adverse effect on the Company and
         its subsidiaries, taken as a whole, or on the power or ability of the
         Company to perform its obligations under this Agreement, the Pass
         Through Trust Agreement, the Pass Through Trust Supplements or the
         Operative Agreements to which it is a party or to consummate the
         transactions contemplated by the Prospectus.

                 (e)      Each subsidiary of the Company has been duly
         incorporated, is validly existing as a corporation in good standing
         under the laws of the jurisdiction of its incorporation, has the
         corporate power and authority to own its property and to conduct its
         business as described in the Prospectus, and is duly qualified to
         transact business and is in good standing in each jurisdiction in
         which the conduct of its business or the ownership or leasing of its
         property requires such qualification, except to the extent that the
         failure to be so qualified or be in good standing would not have a
         material adverse effect on the Company and its subsidiaries, taken as
         a whole.

                 (f)      This Agreement has been duly authorized, executed and
         delivered by the Company.

                 (g)      The Pass Through Trust Agreement has been duly
         qualified under the Trust Indenture Act.

                 (h)      Assuming the truth of the representations and
         warranties in Section 3.5(a) of the Participation Agreements, the
         Offered Certificates have been duly authorized and, when duly executed
         and authenticated by the Pass Through Trustee and delivered to and
         paid for by you in accordance with the terms of this Agreement, will
         (x) be valid and binding obligations of the Pass Through Trustee
         enforceable in accordance with their terms, except as (i) the
         enforceability thereof may be limited by bankruptcy, insolvency or
         similar laws affecting creditors' rights generally and (ii) the
         availability of equitable remedies may be limited by equitable
         principles of general applicability and (y) be entitled to the
         benefits of the Pass Through Trust Agreement pursuant to which such
         Offered Certificates are to be issued.

                 (i)      The Pass Through Trust Agreement, the Pass Through
         Trust Supplements and each of the other Operative Agreements to which
         the Company is a party has been duly authorized by the Company and
         will be executed and delivered by, and be a valid and binding
         agreement of, the Company on or before the Closing Date, enforceable
         in accordance with its respective terms, except as (x) the
         enforceability thereof may be limited





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         by bankruptcy, insolvency or similar laws affecting creditors' rights
         generally, (y) the availability of equitable remedies may be limited
         by equitable principles of general applicability and (z) in the case
         of the Pass Through Trust Agreement and the Lease, the enforceability
         thereof may be limited by applicable law which may affect the remedies
         provided therein, which laws, however, do not make such remedies
         inadequate for the practical realization of the rights and benefits
         intended to be provided thereby.

                 (j)      The execution and delivery by the Company of, and the
         performance by the Company of its obligations under, this Agreement,
         the Pass Through Trust Agreement, the Pass Through Trust Supplements
         and each of the other Operative Agreements to which the Company is a
         party will not contravene (w) any provision of applicable law, (x) the
         certificate of incorporation or by-laws of the Company, (y) any
         agreement or other instrument binding upon the Company or any of its
         subsidiaries that is material to the Company and its subsidiaries,
         taken as a whole, or (z) any judgment, order or decree of any
         governmental body, agency or court having jurisdiction over the
         Company or any subsidiary.

                 (k)      Relying upon the representations and warranties in
         Sections 3.4(a), 3.4(c) (as to the Owner Trustee), 3.5(h), 3.5(i) and
         3.6(g) of the Participation Agreements, no consent, approval,
         authorization or order of, or qualification with, any governmental
         body or agency is required for the valid authorization, issuance and
         delivery of the Offered Certificates, the valid authorization,
         execution, delivery of and performance by the Company of its
         obligations under this Agreement, the Pass Through Trust Agreement,
         the Pass Through Trust Supplements or any of the other Operative
         Agreements to which the Company is a party, or the consummation by the
         Company of the transactions contemplated by this Agreement or such
         other Operative Agreements, except such as may be required by the
         Securities Act, the Trust Indenture Act, the securities or Blue Sky
         laws of the various states in connection with the purchase and resale
         of such Offered Certificates by you, any filings or recordings with
         the Surface Transportation Board of the United States Department of
         Transportation (the "STB"), applicable filings of financing statements
         under the Uniform Commercial Code and any filings or recordings with
         the Registrar General of Canada.

                 (l)      Since the respective dates as of which information is
         given in the Prospectus, (i) there has not been any material adverse
         change, or any event reasonably likely to result in a material adverse
         change, in the condition, financial or otherwise, or in the earnings,
         business or operations, of the Company and its subsidiaries, taken as
         a whole, from that set forth in the Prospectus, (ii) there have not
         been any transactions entered into by the Company or any of its
         subsidiaries





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<PAGE>   7
         other than in the ordinary course of business which are material to
         the Company and its subsidiaries, taken as a whole, and (iii) except
         for regular quarterly dividends, there has been no dividend or
         distribution of any kind declared, paid or made by the Company on its
         capital stock.

                 (m)      There are no legal or governmental proceedings
         pending or to the knowledge of the Company threatened to which the
         Company or any of its subsidiaries is a party or to which any of the
         properties of the Company or any of its subsidiaries is subject other
         than proceedings described in the Prospectus and proceedings that if
         adversely determined would not have a material adverse effect on the
         Company and its subsidiaries, taken as a whole, or on the power or
         ability of the Company to perform its obligations under this
         Agreement, the Pass Through Trust Agreement, the Pass Through Trust
         Supplements or the other Operative Agreements to which the Company is
         a party or to consummate the offering of the Offered Certificates.

                 (n)      Each of the Company and its subsidiaries has all
         necessary consents, authorizations, approvals, orders, certificates
         and permits of and from, and has made all declarations and filings
         with, all federal, state, local and other governmental authorities,
         all self-regulatory organizations and all courts and other tribunals,
         to own, lease, license and use its properties and assets and to
         conduct its business in the manner described in the Prospectus, except
         to the extent that the failure to obtain or file would not have a
         material adverse effect on the Company and its subsidiaries, taken as
         a whole, or on the power or ability of the Company to perform its
         obligations under this Agreement, the Pass Through Trust Agreement,
         the Pass Through Trust Supplements or the other Operative Agreements
         to which the Company is a party or to consummate the offering of the
         Offered Certificates.

                 (o)      Relying upon the representations and warranties in
         Sections 3.4(a), 3.4(c) (as to the Owner Trustee), 3.5(h), 3.5(i) and
         3.6(g) of the Participation Agreements, (i) the offer, sale and
         delivery of the interests of the Owner Participant in the Trust Estate
         is exempt from the registration and prospectus delivery requirements
         of the Securities Act by virtue of Section 4(2) thereof, and (ii) it
         is not necessary to qualify any indenture in respect of the interests
         of the Owner Participant in the Trust Estate under the Trust Indenture
         Act of 1939, as amended (the "Trust Indenture Act").

                 (p)      Each preliminary prospectus filed as part of the
         registration statement as originally filed or as part of any amendment
         thereto, or filed pursuant to Rule 424 under the Securities Act,
         complied when so filed in all material respects with the Securities
         Act and the rules and regulations of the Commission thereunder.





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<PAGE>   8
                 (q)      The Company is not an "investment company" or a
         company "controlled" by an "investment company" within the meaning of
         the Investment Company Act of 1940, as amended.

                 (r)      The Company has not taken and will not take, directly
         or indirectly, any actions prohibited by Rule 10b-6 under the Exchange
         Act.

                 (s)      Ernst & Young LLP, who reported on the annual
         consolidated financial statements of the Company incorporated by
         reference in the Registration Statement and the Prospectus, are
         independent auditors as required by the Securities Act and the
         Securities Act Regulations.

                 (t)      The Company has complied with all provisions of
         Section 517.075, Florida Statutes (Chapter 92-198, Laws of Florida).

                                      III.

                 The Company is advised by you that the Underwriters propose to
make a public offering of their respective portions of the Offered Certificates
as soon after this Agreement has been entered into as in your judgment is
advisable.  The Company is further advised by you that the Offered Certificates
are to be offered to the public initially at 100% of their principal amount
(the "public offering price") plus accrued interest, if any, and to certain
dealers selected by you at a price that represents a concession not in excess
of 0.40% of the principal amount of the Series 1996-1A Pass Through
Certificates and 0.40% of the principal amount of the Series 1996-1B Pass
Through Certificates under the public offering price, and that any Underwriter
may allow, and such dealers may reallow, a concession, not in excess of 0.25%
of the principal amount of the Series 1996-1A Pass Through Certificates and
0.25% of the principal amount of the Series 1996-1B Pass Through Certificates,
to any Underwriter or to certain other dealers.  As compensation to the
Underwriters for their commitments and obligations hereunder in respect of the
Offered Certificates, the Company will pay or cause to be paid to the
Underwriters by the Owner Trustee pursuant to the Participation Agreements an
aggregate amount equal to $747,845.00, which constitutes 0.70% of the aggregate
principal amount of the Offered Certificates.  Such payment shall be made
simultaneously with the payment by you to the Pass Through Trustee of the
purchase price of the Offered Certificates as specified in Article IV hereof.
Payment of such compensation shall be made by Federal funds check or other
immediately available funds to the order of Morgan Stanley & Co. Incorporated.





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<PAGE>   9
                                      IV.

                 Payment for the Offered Certificates shall be made by Federal
funds check or other immediately available funds payable to or upon the order
of the Pass Through Trustee at the offices of Mayer, Brown & Platt, 190 South
LaSalle Street, Chicago, Illinois 60603, at 10:00 A.M., local time, on August
28, 1996, or at such other time on the same or such other date, not later than
September 5, 1996, as shall be agreed in writing between you and the Company.
Payment shall be made upon delivery to you of the Offered Certificates
registered in such names and in such denominations as you shall request in
writing not later than two full business days prior to the date of delivery,
with any transfer taxes payable in connection with the transfer of the Offered
Certificates to you duly paid.  The time and date of such payment and delivery
are hereinafter referred to as the "Closing Date."

                                       V.

                 Your obligation hereunder to purchase the Offered Certificates
is subject to the accuracy of the representations and warranties of the Company
contained herein, to the performance and observance by the Company of all
covenants and agreements contained herein on its part to be performed and
observed and to the following conditions:

                 (a)      Subsequent to the execution and delivery of this
         Agreement and prior to the Closing Date,

                              (i)   no stop order suspending the effectiveness
         of the Registration Statement shall be in effect, and no proceedings
         for such purpose shall be pending before or threatened by the
         Commission;

                              (ii)   there shall not have occurred any
         downgrading, nor shall any notice have been given of (A) any intended
         or potential downgrading or (B) any review or possible change that
         does not indicate the direction of a possible change in the rating
         accorded any of the Company's securities by any "nationally recognized
         statistical rating organization," as such term is defined for purposes
         of Rule 436(g)(2) under the Securities Act; and

                             (iii)   there shall not have occurred any change,
         or any development involving a prospective change, in the condition,
         financial or otherwise, or in the earnings, business or operations, of
         the Company and its subsidiaries, taken as a whole, from that set
         forth in the Prospectus (exclusive of any amendments or supplements
         thereto subsequent to the filing of the Prospectus Supplement), that
         in your judgment, is material and adverse and that makes it
         impracticable to market the Offered Certificates on the terms and in
         the manner contemplated in the Prospectus.





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<PAGE>   10
                 (b)      You shall have received on the Closing Date a
         certificate, dated the Closing Date and signed on behalf of the
         Company by a Vice President and the Treasurer of the Company, to the
         effect set forth in paragraphs (a)(i) and (ii) above and to the effect
         that the representations and warranties of the Company contained
         herein are true and correct as of such Closing Date and that the
         Company has complied with all the agreements and satisfied all of the
         conditions on it its part to be performed or satisfied hereunder on or
         before the Closing Date.

                 (c)      You shall have received on the Closing Date an
         opinion of Mayer, Brown & Platt, counsel for the Company, dated the
         Closing Date, to the effect set forth in Exhibit A.

                 (d)      You shall have received on the Closing Date an
         opinion of Ronald J. Ciancio, Assistant General Counsel for the
         Company, dated the Closing Date, to the effect set forth in Exhibit B.

                 (e)      You shall have received on the Closing Date an
         opinion of The Law Department of The First National Bank of Chicago,
         counsel for The First National Bank of Chicago, dated the Closing
         Date, to the effect set forth in Exhibit C.

                 (f)      You shall have received on the Closing Date an
         opinion of Kirkland & Ellis, counsel for the Underwriters, dated the
         Closing Date, with respect to the issuance and sale of the Offered
         Certificates, the Prospectus and other related matters as you may
         reasonably require.

                 (g)      You shall have received on the date of this Agreement
         a letter dated such date and also on the Closing Date a letter dated
         the Closing Date, in each case in form and substance satisfactory to
         you, from Ernst & Young LLP, independent public accountants,
         containing statements and information of the type ordinarily included
         in accountants' "comfort letters" to underwriters with respect to the
         financial statements and certain financial information contained in or
         incorporated by reference into the Prospectus.

                 (h)      All conditions specified in the Participation
         Agreements with respect to the Pass Through Trustee's purchase of the
         Equipment Notes on the closing date thereunder shall have been
         satisfied on the Closing Date; the representations and warranties of
         the Company contained in the Participation Agreements shall be
         accurate as of the Closing Date and you shall have received a
         certificate of the Company from a Vice President or Treasurer of the
         Company, dated as of the Closing Date, to such effect; and you shall
         have received each opinion referred to in Section 4.1(e) of the
         Participation Agreements, in each case, addressed to you or
         accompanied by a letter from





                                     - 9 -
<PAGE>   11
         counsel rendering such opinion authorizing you to rely on such opinion
         as if it were addressed to you.

                                      VI.

                 In further consideration of your agreements herein contained,
the Company covenants as follows:

                 (a)      If reasonably requested by you in connection with the
         offering of the Offered Certificates, the Company will prepare a
         preliminary prospectus supplement containing such information as you
         and the Company deem appropriate, and, immediately following the
         execution of this Agreement, the Company will prepare a Prospectus
         Supplement that complies with the Securities Act and the Securities
         Act Regulations and which sets forth the principal amount of the
         Offered Certificates and their terms not otherwise specified in the
         basic prospectus relating to all offerings of pass through
         certificates under the Registration Statement, the name of each
         Underwriter participating in the offering and the principal amount of
         the Offered Certificates that each severally has agreed to purchase,
         the name of each Underwriter, if any, acting as representative of the
         Underwriters in connection with the offering, the underwriting
         concession payable to the Underwriters, any initial public offering
         price, any selling concession and reallowance and any delayed delivery
         arrangements, and such other information as you and the Company deem
         appropriate in connection with the offering of the Offered
         Certificates.  The Company will transmit copies of any preliminary
         prospectus supplement and the Prospectus Supplement to the Commission
         for filing pursuant to, and within the applicable period specified in,
         Rule 424(b) under the Securities Act and will furnish to the
         Underwriters as many copies of any preliminary prospectus supplement
         and the Prospectus as you shall reasonably request.

                 (b)      During the period when a prospectus relating to the
         Offered Certificates is required to be delivered under the Securities
         Act, the Company will promptly advise you (i) of the effectiveness of
         any amendment to the Registration Statement, (ii) of the electronic
         submission to the Commission for filing of any supplement to the
         Prospectus or any document that would as a result thereof be
         incorporated by reference in the Prospectus, (iii) of any request by
         the Commission for any amendment of the Registration Statement or any
         amendment or supplement to the Prospectus or for any additional
         information, (iv) of the issuance by the Commission of any stop order
         suspending the effectiveness of the Registration Statement or the
         institution or threatening of any  proceeding for that purpose, and
         (v) of the receipt by the Company of any notification with respect to
         the suspension of the qualification of the Offered Certificates for
         sale in any jurisdiction or the institution or threatening of any





                                     - 10 -
<PAGE>   12
         proceeding for such purpose.  The Company will use its best efforts to
         prevent the issuance of any such stop order and, if issued, to obtain
         as soon as possible the withdrawal thereof.

                 (c)      If, at any time when a prospectus relating to the
         Offered Certificates is required to be delivered under the Securities
         Act, any event occurs as a result of which the Prospectus as then
         amended or supplemented would include any untrue statement of a
         material fact or omit to state any material fact necessary to make the
         statements therein, in light of the circumstances under which they
         were made, not misleading, or if it shall be necessary to amend or
         supplement the Prospectus to comply with the Securities Act or the
         Securities Act Regulations, the Company promptly will prepare and file
         with the Commission, subject to paragraph (d) of this Article VI, an
         amendment or supplement which will correct such statement or omission
         or an amendment or supplement which will effect such compliance.

                 (d)      At any time when a prospectus relating to the Offered
         Certificates is required to be delivered under the Securities Act or
         the Securities Act Regulations, the Company will give you notice of
         its intention to file any amendment to the Registration Statement or
         any amendment or supplement to the Prospectus, whether pursuant to the
         Exchange Act, the Securities Act or otherwise, will furnish you with
         copies of any such amendment or supplement to be filed within a
         reasonable time in advance of filing, and will not file any such
         amendment or supplement in a form to which you shall reasonably
         object.

                 (e)      The Company has furnished or will furnish to you and
         your counsel, without charge, conformed copies of the Registration
         Statement as originally filed and of all amendments thereto, whether
         filed before or after such Registration Statement originally became
         effective (including exhibits thereto and the documents incorporated
         therein by reference) and, so long as delivery of a prospectus by an
         underwriter or dealer may be required by the Securities Act, as many
         copies of each preliminary prospectus, the Prospectus and any
         amendments thereof and supplements thereto as you may reasonably
         request.

                 (f)      To endeavor, in cooperation with you, to qualify the
         Offered Certificates for offer and sale under the securities or Blue
         Sky laws of such jurisdictions as you shall reasonably request in
         connection with the distribution of the Offered Certificates and to
         maintain such qualifications for as long as you shall reasonably
         request; provided however, that the Company will not be required to
         file any general consent to service of process or to qualify to do
         business in any jurisdiction in order to effect such qualification.





                                     - 11 -
<PAGE>   13
                 (g)      Whether or not any sale of the Offered Certificates
         is consummated, to pay or cause to be paid all its expenses incident
         to the performance of its obligations under this Agreement, the Pass
         Through Trust Agreement and the Pass Through Trust Supplements,
         including:  (i) the preparation, printing and distribution of this
         Agreement, the preliminary Prospectus and all amendments and
         supplements thereto, the Pass Through Trust Agreement, the Pass
         Through Trust Supplements and each of the other Operative Agreements,
         (ii) the preparation, issuance and delivery of the Offered
         Certificates, (iii) the reasonable fees and disbursements of the
         Company's counsel and accountants, (iv) the qualification of the
         Offered Certificates for offer and sale under the state securities or
         Blue Sky laws in accordance with the provisions of paragraph (f) of
         this Article VI, including filing fees and the fees and disbursements
         of your counsel in connection therewith and in connection with the
         preparation of any Blue Sky memorandum, (v) the reasonable fees and
         expenses of the Pass Through Trustee and the reasonable fees and
         disbursements of counsel for the Pass Through Trustee, (vi) certain
         fees and disbursements of your counsel as agreed in the Participation
         Agreements, and (vii) any fees charged by rating agencies for the
         rating of the Offered Certificates.

                 (h)      The Company, during the period when a prospectus
         relating to the Offered Certificates is required to be delivered under
         the Securities Act and the Securities Act Regulations, will file
         promptly all documents required to be filed with the Commission
         pursuant to Section 13 or 14 of the Exchange Act.

                 (i)      The Company will make generally available to its
         security holders, in each case as soon as practicable, but not later
         than 45 days after the close of the period covered thereby (90 days in
         case the period covered corresponds to a fiscal year of the Company),
         earnings statements of the Company (in form complying with the
         provisions of Rule 158 under the Securities Act), covering (i) a
         period of 12 months beginning after the effective date of the
         Registration Statement (but beginning not later than the first day of
         the Company's fiscal quarter next following such effective date) and
         (ii) a period of 12 months beginning after the date of this Agreement
         (but beginning not later than the first day of the Company's fiscal
         quarter next following the date of this Agreement).

                 (j)      Between the date of this Agreement and the Closing
         Date, the Company will not, without your prior consent, offer, sell,
         contract to sell or otherwise dispose of any securities of the Company
         which are substantially similar to the Offered Certificates.





                                     - 12 -
<PAGE>   14
                 (k)      For a period of five years after the Closing Date, to
         furnish to you copies of all annual reports, quarterly reports and
         current reports filed with the Commission on Forms 1O-K, 1O-Q and 8-K,
         or such other similar forms as may be designated by the Commission,
         and such other documents, reports and information as shall be
         furnished by the Company to its public securityholders generally.


                                      VII.

                 The Company agrees to indemnify and hold harmless each
Underwriter and each person, if any, who controls any Underwriter within the
meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act, or is under common control with, or is controlled by, such
Underwriter from and against any and all losses, claims, damages or liabilities
(including, without limitation, any legal or other expenses reasonably incurred
by any Underwriter or any such controlling or affiliated person in connection
with defending or investigating any such action or claim) caused by any untrue
statement or alleged untrue statement of a material fact contained in the
Registration Statement or any amendment thereof, any preliminary prospectus or
the Prospectus (as amended or supplemented if the Company shall have furnished
any amendments or supplements thereto) used during the period set forth in
paragraph (c) of Article VI above, or caused by any omission or alleged
omission to state therein a material fact necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading, except insofar as such losses, claims, damages or liabilities are
caused by any such untrue statement or omission or alleged untrue statement or
alleged omission based upon information relating to any Underwriter furnished
to the Company in writing by such Underwriter through you expressly for use
therein; provided, however, that such indemnity with respect to any preliminary
prospectus shall not inure to the benefit of any Underwriter from whom the
person asserting such losses, claims, damages or liabilities purchased the
Offered Certificates if it is established that such person was not sent or
given a copy of the Prospectus, if required by law so to have been delivered,
at or prior to the confirmation of the sale of Offered Certificates to such
person and the untrue statement or omission of a material fact contained in
such preliminary prospectus was corrected in the Prospectus, unless such
failure to deliver the Prospectus was a result of noncompliance by the Company
with paragraph (a) of Article VI.

                 Each Underwriter agrees, severally and not jointly, to
indemnify and hold harmless the Company, its directors, its officers who signed
the Registration Statement and each person, if any, who controls the Company
within the meaning of either Section 15 of the Securities Act or Section 20 of
the Exchange Act to the same extent as the foregoing indemnity from the Company
to the Underwriters, but only with reference to information relating





                                     - 13 -
<PAGE>   15
to any Underwriter furnished to the Company in writing by such Underwriter
through you expressly for use in the preliminary prospectus or the Prospectus
or any amendment or supplement thereto.  The Company acknowledges that the
statements with respect to stabilization on page S-2 of, and the statements set
forth in the third paragraph under the heading "Underwriting" on page S-35 of
the preliminary prospectus and the Prospectus or any amendment or supplement
thereto constitute the only information furnished in writing by any of you or
on any of your behalf expressly for use in such documents.

                 In case any proceeding (including any governmental
investigation) shall be instituted involving any person in respect of which
indemnity may be sought pursuant to either of the two preceding paragraphs,
such person (the "indemnified party") shall promptly notify the person against
whom such indemnity may be sought (the "indemnifying party") in writing and the
indemnifying party, upon request of the indemnified party, shall retain counsel
reasonably satisfactory to the indemnified party to represent the indemnified
party and any others the indemnifying party may designate in such proceeding
and shall pay the fees and disbursements of such counsel related to such
proceeding.  In any such proceeding, any indemnified party shall have the right
to retain its own counsel, but the fees and expenses of such counsel shall be
at the expense of such indemnified party unless (i) the indemnifying party and
the indemnified party shall have mutually agreed to the retention of such
counsel or (ii) the named parties to any such proceeding (including any
impleaded parties) include both the indemnifying party and the indemnified
party and representation of both parties by the same counsel would be
inappropriate due to actual or potential differing interests between them.  It
is understood that the indemnifying party shall not, in connection with any
proceeding or related proceedings in the same jurisdiction, be liable for the
fees and expenses of more than one separate firm (in addition to any local
counsel) for all such indemnified parties and that all such fees and expenses
shall be reimbursed as they are incurred.  Such firm shall be designated in
writing by you in the case of parties indemnified pursuant to the second
preceding paragraph and by the Company in the case of parties indemnified
pursuant to the first preceding paragraph.  The indemnifying party shall not be
liable for any settlement of any proceeding effected without its written
consent, but if settled with such consent or if there be a final judgment for
the plaintiff, the indemnifying party agrees to indemnify the indemnified party
from and against any loss or liability by reason of such settlement or
judgment.  Notwithstanding the foregoing sentence, if at any time an
indemnified party shall have requested an indemnifying party to reimburse the
indemnified party for fees and expenses of counsel as contemplated by the third
sentence of this paragraph, the indemnifying party agrees that it shall be
liable for any settlement of any proceeding effected without its written
consent if (i) such settlement is entered into more than 30 days after receipt
by such indemnifying party of the aforesaid request and (ii) such indemnifying
party





                                     - 14 -
<PAGE>   16
shall not have reimbursed the indemnified party in accordance with such request
prior to the date of such settlement.  No indemnifying party shall, without the
prior written consent of the indemnified party, effect any settlement of any
pending or threatened proceeding in respect of which any indemnified party is
or could have been a party and indemnity could have been sought hereunder by
such indemnified party, unless such settlement includes an unconditional
release of such indemnified party from all liability on claims that are the
subject matter of such proceeding.

                 If the indemnification provided for in the first or second
paragraph of this Article VII is unavailable to an indemnified party or
insufficient in respect of any losses, claims, damages or liabilities referred
to therein in connection with any offering of Offered Certificates, then each
indemnifying party under such paragraph, in lieu of indemnifying such
indemnified party thereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the Company and you from the offering of Offered
Certificates or (ii) if the allocation provided by clause (i) is not permitted
by applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault
of the Company and you in connection with the matters that resulted in such
losses, claims, damages or liabilities, as well as any other relevant equitable
considerations.  The relative benefits received by the Company and you in
connection with the offering of Offered Certificates shall be deemed to be in
the same respective proportions as the net proceeds from the offering of such
Offered Certificates (before deducting expenses) received directly or
indirectly by the Company and the total discounts and commissions received by
you in respect thereof, in each case as set forth on the cover of the
Prospectus, bear to the aggregate offering price of such Offered Certificates.
In the case of an untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact, the relative fault of
the Company and of you shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement or the omission or alleged
omission relates to information supplied by the Company or by you and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission.  The Underwriters' respective
obligations to contribute pursuant to this Article VII are several in
proportion to the respective principal amounts of Offered Certificates they
have purchased hereunder, and not joint.

                 The Company and you agree that it would not be just or
equitable if contribution pursuant to this Article VII were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in the immediately preceding paragraph.
The amount





                                     - 15 -
<PAGE>   17
paid or payable by an indemnified party as a result of the losses, claims,
damages and liabilities referred to in the immediately preceding paragraph
shall be deemed to include, subject to the limitations set forth above, any
legal or other expenses reasonably incurred by such indemnified party in
connection with investigation or defending any such action or claim.
Notwithstanding the provisions of this Article VII, no Underwriter shall be
required to contribute any amount in excess of the amount of which the total
price at which the Offered Certificates underwritten by it and distributed to
the public were offered to the public exceeds the amount of any damages that
such Underwriter has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission.  No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation.  The remedies provided for in this
Article VII are not exclusive and shall not limit any rights or remedies which
may otherwise be available to any indemnified party at law or in equity.

                 The indemnity and contribution agreements contained in this
Article VII and the representations and warranties of the Company contained in
this Agreement shall remain operative and in full force and effect regardless
of (i) any termination of this Agreement, (ii) any investigation made by or on
behalf of you or any person controlling you or by or on behalf of the Company,
its officers or directors or any other person controlling the Company and (iii)
acceptance of and payment for any of the Offered Certificates.

                                     VIII.

                 This Agreement shall be subject to termination in your
absolute discretion, by notice given to the Company, if (a) after the execution
and delivery of this Agreement and prior to the Closing Date (i) trading
generally shall have been suspended or materially limited on or by, as the case
may be, any of the New York Stock Exchange, the American Stock Exchange, the
National Association of Securities Dealers, Inc., the Chicago Board of Options
Exchange, the Chicago Mercantile Exchange or the Chicago Board of Trade, (ii)
trading of any securities of the Company shall have been suspended on any
exchange or in any over-the-counter market, (iii) a general moratorium on
commercial banking activities in New York shall have been declared by either
Federal or New York State authorities or (iv) there shall have occurred any
outbreak or escalation of hostilities or any change in financial markets or any
calamity or crisis that is material and adverse and (b) in the case of any of
the events specified in clauses (a)(i) through (iv), such event singly or
together with any other such event makes it, in your judgment, impracticable to
market the Offered Certificates on the terms and in the manner contemplated in
the Prospectus.





                                     - 16 -
<PAGE>   18
                 If this Agreement shall be terminated by you because of any
failure or refusal on the part of the Company to comply with the terms or to
fulfill any of the conditions of this Agreement, or if for any reason the
Company shall be unable to perform its obligations under this Agreement, the
Company will reimburse you for all out-of-pocket expenses (including the fees
and disbursements of your counsel) reasonably incurred by you in connection
with this Agreement or the offering contemplated hereunder.

                                      IX.

                 If, on the Closing Date, any one or more of the Underwriters
shall fail or refuse to purchase Offered Certificates that it or they have
agreed to purchase hereunder on such date, and the aggregate principal amount
of Offered Certificates which such defaulting Underwriter or Underwriters
agreed but failed or refused to purchase is not more than one-tenth of the
aggregate principal amount of the Offered Certificates to be purchased on such
date, the other Underwriters shall be obligated severally in the proportions
that the principal amount of Offered Certificates set forth opposite their
respective names in Schedule I bears to the principal amount of Offered
Certificates set forth opposite the names of all such non-defaulting
Underwriters, or in such other proportions as you may specify, to purchase the
securities which such defaulting Underwriter or Underwriters agreed but failed
or refused to purchase on such date; provided that in no event shall the
principal amount of Offered Certificates that any Underwriter has agreed to
purchase pursuant to Article I be increased pursuant to this Article IX by an
amount in excess of one-ninth of such principal amount of certificates without
the written consent of such Underwriter.  If, on the Closing Date, any
Underwriter or Underwriters shall fail or refuse to purchase Offered
Certificates and the aggregate principal amount of Offered Certificates with
respect to which such default occurs is more than one-tenth of the aggregate
principal amount of Offered Certificates to be purchased on such date, and
arrangements satisfactory to you and the Company for the purchase of such
certificates are not made within 36 hours after such default, this Agreement
shall terminate without liability on the part of any non-defaulting Underwriter
or the Company.  In any such case either you or the Company shall have the
right to postpone the Closing Date but in no event for longer than seven days,
in order that the required changes, if any, in the Registration Statement and
in the Prospectus or in any other documents or arrangements may be effected.
Any action taken under this paragraph shall not relieve any defaulting
Underwriter from liability in respect of any default of such Underwriter under
this Agreement.

                 This Agreement may be signed in any number of counterparts,
each of which shall be an original, with the same effect as if the signatures
thereto and hereto were upon the same instrument.





                                     - 17 -
<PAGE>   19
                 This Agreement shall be governed by and construed in
accordance with the internal laws of the State of New York.

                 All notices and other communications hereunder shall be in
writing and shall be deemed to have been duly given if mailed or transmitted by
any standard form of telecommunication.  Notices to you shall be directed to
you at the address shown above; notices to the Company shall be directed to it
at 500 West Monroe, Chicago, Illinois 60661, Attention:  Treasurer.

                 This Agreement shall inure to the benefit of and be binding
upon you and the Company and the respective successors thereof.  Nothing
expressed or mentioned in this Agreement is intended or shall be construed to
give any person, firm or corporation, other than the parties hereto and their
respective successors and the controlling persons and officers and directors
referred to in Article VII and their heirs and legal representatives, any legal
or equitable right, remedy or claim under or in respect of this Agreement.

                 The headings of the sections of this document have been
inserted for convenience of reference only and shall not be deemed a part of
this Agreement.

                               *   *   *   *   *





                                     - 18 -
<PAGE>   20
                 If the foregoing is in accordance with your understanding of
our agreement, please sign and return to us a counterpart hereof, whereupon
this instrument will become a binding agreement between you and the Company in
accordance with its terms.


                                       Very truly yours,

                                       GENERAL AMERICAN
                                       TRANSPORTATION CORPORATION



                                       By:
                                          --------------------------------
                                       Name:
                                       Title:



Accepted, August 22, 1996

MORGAN STANLEY & CO.
  INCORPORATED

SALOMON BROTHERS INC

Acting severally on behalf
of themselves and the several
Underwriters named herein.

By: Morgan Stanley & Co.
    Incorporated


By: 
    ---------------------------
Name:
Title:





                                     - 19 -
<PAGE>   21

                                   SCHEDULE A



@@

<TABLE>
<CAPTION>
   PASS THROUGH                   AGGREGATE                                            FINAL
   CERTIFICATE                    PRINCIPAL                INTEREST                DISTRIBUTION
   DESIGNATION                      AMOUNT                   RATE                      DATE    
   -----------                     ---------               --------                ------------
  <S>                           <C>                          <C>           <C>
  Series 1996-1A                $ 77,257,000                 7.50%         February 28, 2015

  Series 1996-1B                $ 29,578,000                 7.86%         August 28, 2021
                                -------------                                             

           Total                $106,835,000
</TABLE>
@@





                                     - 20 -
<PAGE>   22
                                   SCHEDULE I

@@


<TABLE>
<CAPTION>
                                                                        PRINCIPAL AMOUNT OF OFFERED
      Underwriter                                                      CERTIFICATES TO BE PURCHASED      
      -----------                                      --------------------------------------------------------
                                                       SERIES 1996-1A         SERIES 1996-1B              TOTAL
                                                       --------------         --------------              -----
<S>                                                     <C>                    <C>                    <C>
Morgan Stanley & Co.
  Incorporated  . . . . . . . . . . . . . . . . .       $38,629,000            $14,789,000            $ 53,418,000

Salomon Brothers Inc. . . . . . . . . . . . . . .        38,628,000             14,789,000              53,417,000
                                                        -----------            -----------            ------------
                         Total  . . . . . . . . .       $77,257,000            $29,578,000            $106,835,000
</TABLE>
@@





                                     - 21 -
<PAGE>   23
                                                                       EXHIBIT A


                        OPINION OF MAYER, BROWN & PLATT
                            COUNSEL FOR THE COMPANY


                 The opinion of Mayer, Brown & Platt, counsel for the Company,
to be delivered pursuant to paragraph (c) of Article V of the Underwriting
Agreement shall be to the effect that:

                 (A)      the Company has been duly incorporated and is validly
         existing as a corporation in good standing under the laws of the State
         of New York;

                 (B)      the Underwriting Agreement has been duly authorized,
         executed and delivered by the Company;

                 (C)      the Offered Certificates have been duly authorized
         and validly executed, authenticated, issued and delivered by the Pass
         Through Trustee pursuant to the Pass Through Trust Agreement, as
         supplemented by the Pass Through Trust Supplements and, when paid for
         in accordance with the terms of the Underwriting Agreement, will (x)
         be valid and binding obligations of the Pass Through Trustee
         enforceable in accordance with their terms except as may be limited by
         bankruptcy, insolvency, moratorium, reorganization or similar laws
         affecting creditors' rights generally and by general principles of
         equity and (y) be entitled to the benefits of the Pass Through Trust
         Agreement;

                 (D)      the Offered Certificates conform in all material
         respects as to legal matters to the description thereof contained in
         the Prospectus;

                 (E)      relying upon the representations and warranties in
         Sections 3.4(a), 3.4(c), 3.5(h), 3.5(i) and 3.6(g) of the
         Participation Agreements, (i) the offering and sale of the interests
         of the Owner Participant in the Trust Estate is exempt from the
         registration and prospectus delivery requirements of the Securities
         Act by virtue of Section 4(2) thereof and (ii) it is not necessary to
         qualify any indenture in respect of the interests of the Owner
         Participant in the Trust Estate under the Trust Indenture Act of 1939,
         as amended.

                 (F)      The Pass Through Trust Agreement, as supplemented by
         the Pass Through Trust Supplements, pursuant to which the Offered
         Certificates are to be issued has been duly authorized, executed and
         delivered by the Company and is a valid and binding agreement of the
         Company, enforceable in accordance with its terms, except as may be
         limited by bankruptcy, insolvency, moratorium, reorganization or
         similar laws affecting creditors' rights generally, by general
         principles of equity and by applicable law which may affect
<PAGE>   24
the remedies provided therein, which laws, however, do not, in the opinion of
such counsel, make such remedies inadequate for the practical realization of
the rights and benefits intended to be provided thereby;

                 (G)      each of the Operative Agreements to which the Company
         is a party has been duly authorized, executed and delivered by the
         Company and is a valid and binding agreement of the Company
         enforceable in accordance with its terms, except as may be limited by
         bankruptcy, insolvency, moratorium, reorganization or similar laws
         affecting creditors' rights generally, by general principles of equity
         and, in the case of the Lease, by applicable laws which may affect the
         remedies provided therein, which laws, however, do not, in the opinion
         of such counsel, make such remedies inadequate for the practical
         realization of the rights and benefits intended to be provided
         thereby;

                 (H)      the Pass Through Trust Agreement, the Pass Through
         Trust Supplements and the Operative Agreements conform in all material
         respects as to legal matters to the descriptions thereof contained in
         the Prospectus;

                 (I)      the Company is not an "investment company" or a
         company "controlled" by an "investment company" within the meaning of
         the Investment Company Act of 1940, as amended;

                 (J)      the execution and delivery by the Company of, and the
         performance by the Company of its obligations under, the Underwriting
         Agreement will not contravene any provision of New York, Illinois or
         United States law known to such counsel or the certificate of
         incorporation or by-laws of the Company or, to the knowledge of such
         counsel, any agreement or other instrument binding upon the Company,
         and no consent, approval or authorization of any governmental body or
         agency is required for the performance by the Company of its
         obligations under the Underwriting Agreement, except such as are
         specified and have been obtained and such as may be required by the
         securities or blue sky laws of the various jurisdictions in connection
         with the purchase and distribution of the Offered Certificates and any
         filings with the STB;

                 (K)      each document incorporated by reference in the
         Prospectus (except for financial statements and other financial data
         included therein, as to which such counsel need not express any
         opinion) complied as to form when filed with the Commission in all
         material respects with the Exchange Act and the rules and regulations
         of the Commission thereunder;

                 (L)      such counsel is of the opinion ascribed to it in the
         Prospectus under the caption "Federal Income Tax Consequences" and
         "Certain Illinois Taxes";





                                     - 2 -
<PAGE>   25
                 (M)      the Registration Statement, the Prospectus and each
         amendment thereof or supplement thereto (except for the financial
         statements and other financial data included or incorporated by
         reference therein, as to which such counsel need express no opinion)
         comply as to form in all material respects with the requirements of
         the Securities Act and the Securities Act Regulations;

                 (N)      the Equipment Notes, the Indentures, the
         Participation Agreements, and the Leases and other Operative Documents
         to which the Company is a party (to the extent described therein)
         conform in all material respects to the descriptions thereof contained
         in the Prospectus;

                 (O)      there are no taxes, fees or other governmental
         charges payable under the laws of the State of Illinois or any
         political subdivision thereof in connection with the execution and
         delivery by the Pass Through Trustee, in its individual capacity or as
         Pass Through Trustee, as the case may be, of the Pass Through Trust
         Agreement or the Participation Agreements or in connection with the
         issuance, execution and delivery of the Offered Certificates by the
         Pass Through Trustee, pursuant to the Pass Through Trust Agreement;
         and

                 (P)      assuming that, for Federal income tax purposes, each
         trust created by the Pass Through Trust Agreement is not classified as
         an association taxable as a corporation, but rather, as a grantor
         trust under subpart E, Part I of Subchapter J of the Internal Revenue
         Code of 1986, as amended, neither the trusts created by the Pass
         Through Trust Agreement, the Trust Properties, nor the Pass Through
         Trustee will be subject to any tax (including, without limitation, net
         or gross income, tangible or intangible property, net worth, capital,
         franchise or doing business tax), fee or other governmental charge
         under the laws of the State of Illinois or any political subdivision
         thereof.  Certificateholders who are not residents of or otherwise
         subject to any tax in Illinois will not be subject to any tax
         (including, without limitation, net or gross income, tangible or
         intangible property, net worth, capital, franchise or doing business
         tax), fee or other governmental charge under the laws of the State of
         Illinois or any political subdivision thereof as a result of
         purchasing, holding (including receiving payments with respect to) or
         selling a Certificate.

                 Such counsel shall also state that while such counsel has not
checked the accuracy or completeness of, or otherwise verified, and is not
passing upon and assumes no responsibility for the accuracy or completeness of
the statements contained in the Registration Statement or the Prospectus, in
the course of such counsel's review and discussion of the contents of the
Prospectus with certain officers and employees of the Company, the Underwriters
and their counsel and the Company's independent





                                     - 3 -
<PAGE>   26
accountants, but without independent check or verification, no facts have come
to such counsel's attention which have caused such counsel to believe that (A)
that the Registration Statement or any amendment thereto, on the original
effective date thereof, on the effective date of any post-effective amendment
thereto, or on the date of the filing by the Company of its most recent Annual
Report on Form 10-K after the filing of the Registration Statement (except, in
each case, for the financial statements and other financial and statistical
data included or incorporated by reference therein, as to which such counsel
need express no belief), contained an untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein not misleading, or (B) that the Prospectus (other
than the financial statements and other financial and statistical information
included therein, as to which no belief need be expressed), when issued did
not, and as of the date hereof does not, contain an untrue statement of a
material fact or omit to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.

                 In giving the opinion set forth in paragraph (C) above, such
counsel may rely on the opinion given by counsel to the Pass Through Trustee.





                                     - 4 -
<PAGE>   27
                                                                       EXHIBIT B


                                   OPINION OF
                               RONALD J. CIANCIO
                   ASSISTANT GENERAL COUNSEL FOR THE COMPANY


                 The opinion of Ronald J. Ciancio, Assistant General Counsel
for the Company, to be delivered pursuant to paragraph (d) of Article V of the
Underwriting Agreement shall be to the effect that:

                                  (A)      The Company has been duly
                          incorporated, is validly existing as a corporation in
                          good standing under the laws of the State of New York
                          and has the corporate power and authority under such
                          laws to own, lease and operate its properties and
                          conduct its business as described in the Prospectus;
                          and it is duly qualified to transact business and is
                          in good standing in each jurisdiction in which the
                          conduct of its business or the ownership or leasing
                          of its property requires such qualification, except
                          to the extent that the failure to be so qualified or
                          be in good standing would not have a material adverse
                          effect on the Company and its subsidiaries, taken as
                          a whole;

                 (B)      Each of the Company's Significant Subsidiaries (as
         defined under Regulation S-X) has been duly incorporated, is validly
         existing as a corporation in good standing under the laws of the
         jurisdiction of its incorporation, has the corporate power and
         authority to own its property and to conduct its business as described
         in the Prospectus, as amended or supplemented, and is duly qualified
         to transact business and is in good standing in each jurisdiction in
         which the conduct of its business or its ownership or leasing of
         property requires such qualification, except to the extent that the
         failure to be so qualified or be in good standing would not have a
         material adverse effect on the Company and its subsidiaries, taken as
         a whole;

                 (C)      Each of the Company and its Significant Subsidiaries
         has all necessary consents, authorizations, approvals, orders,
         certificates and permits of and from, and has made all declarations
         and filings with, all federal, state, local and other governmental
         authorities, all self-regulatory organizations and all courts and
         other tribunals, to own, lease, license and use its properties and
         assets and to conduct its business in the manner described in the
         Prospectus, except to the extent that the failure to obtain or file
         would not have a material adverse effect on the Company and its
         subsidiaries, taken as a whole;
<PAGE>   28
                 (D)      The execution and delivery by the Company of, and the
         performance by the Company of its obligations under, the Underwriting
         Agreement, the Pass Through Trust Agreement or any of the other
         Operative Agreements to which the Company is a party will not
         contravene (i) any provision of applicable law known to such counsel,
         (ii) the certificate of incorporation or by-laws of the Company, (iii)
         to the best of such counsel's knowledge, any agreement or other
         instrument binding upon the Company or any of its subsidiaries that is
         material to the Company and its subsidiaries, taken as a whole, or
         (iv) to the best of such counsel's knowledge, any judgment, order or
         decree of any governmental body, agency or court having jurisdiction
         over the Company or any subsidiary;

                 (E)      No consent, approval, authorization or order of, or
         qualification with, any Federal or State governmental body or agency
         is required for the valid authorization, issuance and delivery of the
         Offered Certificates, the valid authorization, execution, delivery of
         and performance by the Company of its obligations under the
         Underwriting Agreement, the Pass Through Trust Agreement or any of the
         Operative Agreements to which the Company is a party, or the
         consummation by the Company of the transactions contemplated by this
         Agreement or such Operative Agreements, except such as are specified
         and have been obtained and may be required by the securities or Blue
         Sky laws of the various jurisdictions in connection with the offering
         of such Offered Certificates and except for any filings or recordings
         with the STB;

                 (F)      Such counsel does not know of any legal or
         governmental proceedings pending or threatened to which the Company or
         any of its subsidiaries is a party or to which any of the properties
         of the Company or any of its subsidiaries is subject other than any
         proceeding that is required to be described in the Incorporated
         Documents and is not so described;

                 (G)      The statements in "Item 3 - Legal Proceedings" of the
         Company's most recent annual report on Form 10-K, "Item 1 - Legal
         Proceedings" of any quarterly report on Form 10-Q and in "Item 5 -
         Other Events" of any current report on Form 8-K incorporated by
         reference in the Prospectus, insofar as such statements constitute a
         summary of the legal matters, documents or proceedings referred to
         therein, fairly present the information called for with respect to
         such legal matters, documents and proceedings and fairly summarize the
         matters referred to therein; and

                 (H)      Such counsel is of the opinion that each document
         incorporated by reference in the preliminary prospectus, the





                                     - 2 -
<PAGE>   29
         Prospectus and the Registration Statement (except for financial
         statements and schedules included therein, as to which such counsel
         need not express any opinion), complied as to form when filed with the
         Commission in all material respects with the Exchange Act and the
         rules and regulations of the Commission thereunder.

                 Such counsel shall also state that while such counsel has not
checked the accuracy or completeness of, or otherwise verified, and is not
passing upon and assumes no responsibility for the accuracy or completeness of
the statements contained in the Registration Statement and Prospectus, in the
course of such counsel's review and discussion of the contents of the
Prospectus with certain officers and employees of the Company, the Underwriters
and their counsel and the Company's independent accountants, but without
independent check or verification, no facts have come to such counsel's
attention which have caused such counsel to believe that (A) the Registration
Statement or any amendment thereto, on the original effective date thereof, on
the effective date of any post-effective amendment thereto, or on the date of
the filing by the Company of its most recent Annual Report on Form 10-K after
the filing of the Registration Statement (except, in each case, for the
financial statements and other financial and statistical data included or
incorporated by reference therein, as to which such counsel need express no
belief), contained an untrue statement of a material fact or omitted to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading, or (B) that the Prospectus (other than the financial
statements and other financial and statistical information included therein, as
to which no belief need be expressed), when issued did not, and as of the date
hereof does not, contain an untrue statement of a material fact or omit to
state a material fact necessary in order to make the statements therein, in the
light of the circumstances under which they were made, not misleading.





                                     - 3 -
<PAGE>   30
                                                                       EXHIBIT C


                                   OPINION OF
                      COUNSEL FOR THE PASS THROUGH TRUSTEE


                 The opinion of The Law Department of The First National Bank
of Chicago, counsel to The First National Bank of Chicago to be delivered
pursuant to paragraph (c) of Article V of the Underwriting Agreement shall be
collectively to the effect that:

                          (A)     The Pass Through Trustee is a national
                 banking association duly organized and validly existing in
                 good standing under the laws of the United States of America
                 and has full corporate power and authority to execute, deliver
                 and carry out the terms of the Pass Through Trust Agreement
                 and the Participation Agreement;

                 (B)      The Pass Through Trustee has duly authorized,
         executed and delivered the Pass Through Trust Agreement and each
         Participation Agreement and the Pass Through Trust Agreement and each
         Participation Agreement constitute valid and binding obligations of
         the Pass Through Trustee enforceable against the Pass Through Trustee
         in accordance with their respective terms, except as enforcement
         thereof may be limited by bankruptcy, insolvency, reorganization or
         other similar laws affecting enforcement of creditors' rights
         generally, and except as enforcement thereof is subject to general
         principles of equity (regardless of whether enforcement is considered
         in a proceeding in equity or at law);

                 (C)      The Offered Certificates issued today have been duly
         authorized and validly executed, authenticated, issued and delivered
         by the Pass Through Trustee pursuant to the Pass Through Trust
         Agreement; and the holders of the Offered Certificates are entitled to
         the benefits of the Pass Through Trust Agreement;

                 (D)      The authorization, execution, delivery and
         performance by the Pass Through Trustee of the Pass Through Trust
         Agreement and the Participation Agreements and the consummation of the
         transactions therein contemplated and compliance with the terms
         thereof and issuance of the Offered Certificates thereunder do not and
         will not result in the violation of the provisions of the Articles of
         Association or By-Laws of the Pass Through Trustee and do not and will
         not conflict with, or result in a breach of any terms or provisions
         of, or constitute a default under, or result in the creation or the
         imposition of any lien, charge or encumbrance upon any property or
         assets of the Pass Through Trustee under any indenture, mortgage or
         other agreement or instrument to which the Pass Through Trustee is a
         party or by which it or
<PAGE>   31
         any of its property is bound, or any Illinois or federal law, rule or
         regulation governing the trustee's banking or trust powers, or of any
         judgment, order or decree known to such counsel to be applicable to
         the Pass Through Trustee of any court, regulatory body, administrative
         agency, government or governmental body having jurisdiction over the
         Pass Through Trustee or its properties; and

                 (E)      No authorization, approval, consent, license or order
         of, giving of notice to, registration with, or taking of any other
         action in respect of, any federal or state governmental authority or
         agency pursuant to any federal or Illinois law governing the banking
         or trust powers of the Pass Through Trustee is required for the
         authorization, execution, delivery and performance by the Pass Through
         Trustee of the Pass Through Trust Agreement or the Participation
         Agreements or the consummation of any of the transactions by the Pass
         Through Trustee contemplated thereby or the issuance of the Offered
         Certificates under the Pass Through Trust Agreement (except as shall
         have been duly obtained, given or taken); and such authorization,
         execution, delivery, performance, consummation and issuance do not
         conflict with or result in a breach of the provisions of any such law.





                                     - 2 -

<PAGE>   1

                                                                     EXHIBIT 4.1





                             TRUST SUPPLEMENT NO. 6
                          DATED AS OF AUGUST 28, 1996
                                       TO
                               PASS THROUGH TRUST
                                   AGREEMENT
                           DATED AS OF AUGUST 1, 1992


                           ---------------------------


                  GENERAL AMERICAN TRANSPORTATION CORPORATION
                                      AND
                 THE FIRST NATIONAL BANK OF CHICAGO, AS TRUSTEE

                           ---------------------------



                  GENERAL AMERICAN TRANSPORTATION CORPORATION
                           1996-1A PASS THROUGH TRUST
                7.50% PASS THROUGH CERTIFICATES, SERIES 1996-1A





<PAGE>   2
                                TRUST SUPPLEMENT

                          DATED AS OF AUGUST 28, 1996


                   PASS THROUGH CERTIFICATES, SERIES 1996-1A





                               Table of Contents





<TABLE>
<CAPTION>
SECTION                                       HEADING                                                                       PAGE
<S>              <C>                                                                                                          <C>
ARTICLE I        THE CERTIFICATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

  Section 1.01.  The Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2


ARTICLE II       DEFINITIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

  Section 2.01.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4


ARTICLE III      THE TRUSTEE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

  Section 3.01.  The Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
  Section 3.02.  Acceptance by Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4


ARTICLE IV       MISCELLANEOUS PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

  Section 4.01.  Basic Agreement Ratified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
  Section 4.02.  Termination of Trust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
  Section 4.03.  Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
  Section 4.04.  Execution in Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
</TABLE>





<PAGE>   3
                                TRUST SUPPLEMENT
                   PASS THROUGH CERTIFICATES, SERIES 1996-1A


         This Trust Supplement No. 6, dated as of August 28, 1996 (herein
called the "Trust Supplement") between General American Transportation
Corporation, a New York corporation (the "Company"), and The First National
Bank of Chicago, a national banking association, as trustee (the "Trustee"), to
the Pass Through Trust Agreement dated as of August 1, 1992, as supplemented,
between the Company and the Trustee (the "Basic Agreement").

                              W I T N E S S E T H:

         WHEREAS, the Company and the Trustee have heretofore executed and
delivered the Basic Agreement, unlimited as to the aggregate principal amount
of Certificates (unless specified herein capitalized terms used herein without
definition have the respective meanings specified heretofore in the Basic
Agreement) which may be issued thereunder;

         WHEREAS, each of two Owner Trustees, each acting on behalf of an Owner
Participant, will issue, on a non-recourse basis, Equipment Notes, among other
things, to finance a portion of the purchase price of Equipment purchased by
such Owner Trustee and leased to the Company pursuant to the related Lease;

         WHEREAS, pursuant to the terms and conditions of the Basic Agreement
as supplemented by this Trust Supplement (the "Agreement"), the Trustee shall
purchase such Equipment Notes issued by such Owner Trustees of the same tenor
as the Certificates issued thereunder and shall hold such Equipment Notes in
trust for the benefit of the Certificateholders;

         WHEREAS, the Trustee hereby declares the creation of this Trust for
the benefit of the Certificateholders, and the initial Certificateholders as
the grantors of the Trust, by their respective acceptances of the Certificates,
join in the creation of this Trust with the Trustee;

         WHEREAS, all of the conditions and requirements necessary to make this
Trust Supplement, when duly executed and delivered, a valid, binding and legal
instrument in accordance with its terms and for the purposes herein expressed,
have been done, performed and fulfilled, and the execution and delivery of this
Trust Supplement in the form and with the terms hereof have been in all
respects duly authorized;

         WHEREAS, this Trust Supplement is subject to the provisions of the
Trust Indenture Act of 1939, as amended, and shall, to the extent applicable,
be governed by such provisions;





<PAGE>   4
         NOW THEREFORE, in consideration of the premises herein, it is agreed
between the Company and the Trustee as follows:


                                   ARTICLE I
                                THE CERTIFICATES


         Section 1.01.  The Certificates.  There is hereby created a series of
Certificates to be issued under the Agreement to be distinguished and known as
"Pass Through Certificates, Series 1996-1A" (hereinafter defined as the "Series
1996-1A Certificates"). Each Certificate represents a Fractional Undivided
Interest in the Trust created hereby.  The terms and conditions applicable to
the Series 1996-1A Certificates are as follows:

         1.      The aggregate principal amount of the Series 1996-1A
Certificates that shall be authenticated under the Agreement (except for Series
1996-1A Certificates authenticated and delivered pursuant to Sections 3.03,
3.04 and 3.05 of the Basic Agreement) upon their initial issuance is
$77,257,000.

         2.      The Cut-Off Date shall be September 12, 1996.

         3.      The Regular Distribution Dates with respect to any payment of
Scheduled Payments means each February 28 and August 28 commencing February 28,
1997 until payment of all of the Scheduled Payments to be made under the
Equipment Notes has been made.

         4.      The Scheduled Payments shall be as set forth in Exhibit C
hereto.

         5.      The Special Distribution Dates are as follows: with respect to
the prepayment of any Equipment Note, other than pursuant to a refinancing in
accordance with Section 10.2 of the related Participation Agreement, the 28th
day of the month on which such prepayment is scheduled to occur pursuant to the
terms of the related Indenture; with respect to the prepayment of any Equipment
Note pursuant to a refinancing in accordance with Section 10.2 of the related
Participation Agreement, the Refunding Date (as defined in such related
Participation Agreement); and with respect to any other Special Payment
relating to an Equipment Note, the earliest  28th day of a month for which it
is practicable for the Trustee to give the applicable notice pursuant to
Section 4.02(c) of the Basic Agreement.

         6.      The Series 1996-1A Certificates shall be in the form attached
hereto as Exhibit A.  The Series 1996-1A Certificates shall be Book-Entry
Certificates and shall be subject to the conditions set forth in the Letter of
Representations between the Company and the Clearing Agency attached hereto as
Exhibit B.





                                     -2-
<PAGE>   5
         7.      The proceeds of the Series 1996-1A Certificates shall be used
to purchase the Equipment Notes at the Original Issue Prices specified below:

<TABLE>
<CAPTION>
                                   ORIGINAL                 PRINCIPAL
EQUIPMENT NOTE                    ISSUE PRICE                 AMOUNT                      MATURITY
<S>                                  <C>                      <C>                 <C>
96-1, I-A                            100%                     $11,385,000         August 28, 2014
96-1, II-A                           100%                     $39,102,000         February 28, 2015
96-2, I-A                            100%                     $ 9,867,000         August 28, 2014
96-2, II-A                           100%                     $16,903,000         August 28, 2014
</TABLE>


         8.      Each of the two Owner Trustees, acting on behalf of an Owner
Participant, will issue on a non-recourse basis, the Equipment Notes, the
proceeds of which shall be used, among other things, to finance a portion of
the purchase price of the Equipment as set forth on Schedule 1 to the related
Participation Agreement.

         9.      The related Note Documents are as follows:

                 (a)  With respect to GATC Trust No. 96-1:

                          (i)  Trust Indenture and Security Agreement (GATC
                 Trust No. 96-1), dated as of August 28, 1996;

                          (ii)  Equipment Lease Agreement (GATC Trust No.
                 96-1), dated as of August 28, 1996;

                          (iii)  Participation Agreement (GATC Trust No. 96-1),
                 dated as of August 28, 1996;

                          (iv)    Indenture Supplement No. I (GATC Trust No.
                 96-1), dated as of August 28, 1996;

                          (v)  Indenture Supplement No. II (GATC Trust No.
                 96-1), dated as of August 28, 1996;

                          (vi)  Lease Supplement No. I (GATC Trust No. 96-1),
                 dated as of August 28, 1996; and

                          (vii)  Lease Supplement No. II (GATC Trust No.
                 96-1), dated as of August 28, 1996.

                 (b)  With respect to GATC Trust No. 96-2:

                          (i)  Trust Indenture and Security Agreement (GATC
                 Trust No. 96-2), dated as of August 28, 1996;

                          (ii)  Equipment Lease Agreement (GATC Trust No.
                 96-2), dated as of August 28, 1996;





                                     -3-
<PAGE>   6
                          (iii)  Participation Agreement (GATC Trust No. 96-2),
                 dated as of August 28, 1996;

                          (iv)    Indenture Supplement No. I (GATC Trust No.
                 96-2), dated as of August 28, 1996;

                          (v)  Indenture Supplement No. II (GATC Trust No.
                 96-2), dated as of August 28, 1996;

                          (vi)    Lease Supplement No. I (GATC Trust No. 96-2),
                 dated as of August 28, 1996; and

                          (vii)  Lease Supplement No. II (GATC Trust No.
                 96-2), dated as of August 28, 1996.


                                   ARTICLE II
                                  DEFINITIONS

         Section 2.01.    Definitions.  The following terms, notwithstanding
the definitions therefor in the Basic Agreement, shall have the following
meanings for all purposes relating to the Series 1996-1A Certificates
(including hereunder and under the Basic Agreement):

                                     NONE.


                                  ARTICLE III
                                  THE TRUSTEE

         Section 3.01.    The Trustee.  Subject to Section 7.04 of the Basic
Agreement, the Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Trust Supplement or the due
execution hereof by the Company, or for or in respect of the recitals and
statements contained herein, all of which recitals and statements are made
solely by the Company.

         Except as herein otherwise provided, no duties, responsibilities or
liabilities are assumed, or shall be construed to be assumed by the Trustee by
reason of this Trust Supplement other than as set forth in the Basic Agreement,
and this Trust Supplement is executed and accepted on behalf of the Trustee,
subject to all the terms and conditions set forth in the Basic Agreement, upon
the effectiveness thereof, as fully to all intents as if the same were herein
set forth at length.

         Section 3.02.  Acceptance by Trustee.  The Trustee, upon execution and
delivery of this Trust Supplement, acknowledges its acceptance of all right,
title, and interest in and to the Equipment Notes described herein and acquired
pursuant to Section





                                    -4-
<PAGE>   7
2.02 of the Basic Agreement and the Participation Agreements and declares that
the Trustee holds and will hold such right, title, and interest, together with
all other property constituting the Trust Property of the Trust created hereby,
for the benefit of all present and future holders of the Series 1996-1A
Certificates, upon the trusts set forth herein and in the Basic Agreement.  By
its payment for and acceptance of each Certificate issued to it hereunder, each
initial holder of the Series 1996-1A Certificates as grantor of the Trust
thereby joins in the creation and declaration of the Trust created hereby.


                                   ARTICLE IV
                            MISCELLANEOUS PROVISIONS

         Section 4.01.    Basic Agreement Ratified.  Except and so far as
herein expressly provided, all of the provisions, terms and conditions of the
Basic Agreement are in all respects ratified and confirmed; and the Basic
Agreement and this Trust Supplement shall be taken, read and construed as one
and the same instrument.

         Section 4.02.  Termination of Trust.  The Trust created hereby shall
terminate upon the distribution to all holders of the Series 1996-1A
Certificates all amounts required to be distributed to them pursuant to the
Basic Agreement and this Trust Supplement and the disposition of all property
held as part of the Trust Property of the Trust created hereby; provided,
however, that in no event shall the Trust created hereby continue beyond the
expiration of 21 years from the death of the last survivor of all of the
descendants of Joseph P. Kennedy, the late ambassador of the United States to
Great Britain, living on the date of this Trust Supplement.

         Section 4.03.    Governing Law.  THIS TRUST SUPPLEMENT AND THE SERIES
1996-1A CERTIFICATES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK.

         Section 4.04.    Execution in Counterparts.  This Trust Supplement may
be executed in any number of counterparts, each of which shall be an original,
but such counterparts shall together constitute but one instrument.





                                     -5-
<PAGE>   8
         IN WITNESS WHEREOF, the Company and the Trustee have caused this Trust
Supplement to be duly executed by their respective officers thereto duly
authorized, as of the day and year first written above.

                                       GENERAL AMERICAN TRANSPORTATION
                                         CORPORATION


                                       By:
                                          ----------------------------
                                          Name:                      
                                                ----------------------
                                          Title:                     
                                                ----------------------



                                       THE FIRST NATIONAL BANK OF
                                         CHICAGO, AS TRUSTEE


                                       By:
                                          ----------------------------
                                          Name:                      
                                                ----------------------
                                          Title:                     
                                                ----------------------







                                     -6-
<PAGE>   9
                                                                       EXHIBIT A



                              FORM OF CERTIFICATE


         Unless this certificate is presented by an authorized representative
of DTC, a New York corporation ("DTC"), to Issuer or its agent for registration
of transfer, exchange or payment, and any certificate issued is registered in
the name of Cede & Co. or in such other name as is requested by an authorized
representative of DTC (and any payment is made to Cede & Co. or to such other
entity as is requested by an authorized representative of DTC), ANY TRANSFER,
PLEDGE OR OTHER USE HEREOF FOR VALUE or OTHERWISE BY OR TO ANY PERSON IS
WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest
herein.

                  General American Transportation Corporation
                           1996-1A PASS THROUGH TRUST
                               7.50% Pass Through
                          Certificate, Series 1996-1A
                              CUSIP _____________
              Final Regular Distribution Date:  February 28, 2015

         evidencing a fractional undivided interest in a trust, the property of
which includes certain Equipment Notes secured by certain railroad rolling
stock leased to General American Transportation Corporation.


Certificate
No. R-1                                $77,257,000 Fractional Undivided Interest
                                         representing .00001294 of the Trust per
                                                              $1,000 face amount

         THIS CERTIFIES THAT CEDE & CO., for value received, is the registered
owner of a $77,257,000 (Seventy-Seven Million Two Hundred and Fifty-Seven
Thousand Dollars) Fractional Undivided Interest in General American
Transportation Corporation 1996-1A Pass Through Trust (the "Trust") created by
The First National Bank of Chicago, as trustee (the "Trustee"), pursuant to a
Pass Through Trust Agreement dated as of August 1, 1992 and a related Trust
Supplement dated as of August 28, 1996 (collectively, the "Agreement") between
the Trustee and General American Transportation Corporation, a corporation
incorporated under New York law (the "Company"), a summary of certain of the
pertinent provisions of which is set forth below.  To the extent not otherwise
defined herein, the capitalized terms used herein have the meanings assigned to
them in the Agreement.  This Certificate is one of the duly authorized
Certificates designated as "7.50%





<PAGE>   10
Pass Through Certificates, Series 1996-1A" (herein called the "Certificates").
This Certificate is issued under and is subject to the terms, provisions, and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.
The property of the Trust includes certain Equipment Notes (the "Trust
Property").  The Equipment Notes are secured by a security interest in railroad
rolling stock leased to the Company.

         The Certificates represent fractional undivided interests in the Trust
and the Trust Property, and have no rights, benefits or interest in respect of
any other separate trust established pursuant to the terms of the Agreement for
any other series of certificates issued pursuant thereto.

         Subject to and in accordance with the terms of the Agreement, from
funds then available to the Trustee, there will be distributed on each February
28 and August 28 (a "Regular Distribution Date"), commencing on February 28,
1997, to the person in whose name this Certificate is registered at the close
of business on the day of the month which is 15 days preceding the Regular
Distribution Date, an amount in respect of the Scheduled Payments on the
Equipment Notes due on such Regular Distribution Date, the receipt of which has
been confirmed by the Trustee, equal to the product of the percentage interest
in the Trust evidenced by this Certificate and an amount equal to the sum of
such Scheduled Payments.  Subject to and in accordance with the terms of the
Agreement, in the event that Special Payments on the Equipment Notes are
received by the Trustee, from funds then available to the Trustee, there shall
be distributed on the applicable Special Distribution Date, to the Person in
whose name this Certificate is registered at the close of business on the day
of the month which is 15 days preceding the Special Distribution Date, an
amount in respect of such Special Payments on the Equipment Notes, the receipt
of which has been confirmed by the Trustee, equal to the product of the
percentage interest in the Trust evidenced by this Certificate and an amount
equal to the sum of such Special Payments so received. If a Regular
Distribution Date or Special Distribution Date is not a Business Day,
distribution shall be made on the immediately following Business Day.  The
Special Distribution Date shall be:  with respect to the prepayment of any
Equipment Note, other than pursuant to a refinancing in accordance with Section
10.2 of a Participation Agreement, the 28th day of the month on which such
prepayment is scheduled to occur pursuant to the terms of the related
Indenture; with respect to the prepayment of any Equipment Note pursuant to a
refinancing in accordance with Section 10.2 of a Participation Agreement, the
Refunding Date (as defined in such Participation Agreement); and with respect
to any other Special Payment relating to an Equipment Note, the earliest 28th
day of a month for which it is practicable for the Trustee to give the
applicable notice pursuant to Section 4.02(c) of the Basic





                                    -2-
<PAGE>   11
Agreement.  The Trustee shall mail notice of each Special Payment and the
Special Distribution Date therefor to the Holders of the Certificates.

         Distributions on this Certificate will be made by the Trustee (i) by
check mailed to the person entitled thereto or (ii) prior to the time
Definitive Certificates are issued by wire transfer of same-day funds to the
account designated by the Certificateholder to the Trustee on or prior to the
applicable Record Date, without the presentation or surrender of this
Certificate or the making of any notation hereon.  Except as otherwise provided
in the Agreement and notwithstanding the above, the final distribution on this
Certificate will be made after notice mailed by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency of the Trustee specified in such notice.

         This Certificate shall be governed by and construed in accordance with
the laws of the State of New York.

         Reference is hereby made to the further provisions of this Certificate
set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

         Unless the certificate of authentication hereon has been executed by
the Trustee, by manual signature, this Certificate shall not be entitled to any
benefit under the Agreement or be valid for any purpose.





                                     -3-
<PAGE>   12
         IN WITNESS WHEREOF, the Trustee has caused this Certificate to be duly
executed.

                                       General American Transportation
                                         Corporation 1996-1A Pass
                                         Through Trust


                                       By: The First National Bank of
                                           Chicago, as Trustee


                                       By:
                                          --------------------------------
                                          Title



             [FORM OF THE TRUSTEE'S CERTIFICATE OF AUTHENTICATION]


Dated: August 28, 1996

                                  This is one of the Certificates referred
                                  to in the within-mentioned Agreement.

                                          
                                          The First National Bank of
                                            Chicago, as Trustee

                                          By:
                                              ---------------------------
                                              Authorized Officer






                                    -4-
<PAGE>   13
                            [REVERSE OF CERTIFICATE]


         The Certificates do not represent a direct obligation of, or an
obligation guaranteed by, or an interest in, the Company or the Trustee or any
affiliate thereof.  The Certificates are limited in right of payment, all as
more specifically set forth on the face hereof and in the Agreement.  All
payments or distributions made to Certificateholders under the Agreement shall
be made only from the Trust Property and only to the extent that the Trustee
shall have sufficient income or proceeds from the Trust Property to make such
payments in accordance with the terms of the Agreement.  Each Holder of this
Certificate, by its acceptance hereof, agrees that it will look solely to the
income and proceeds from the Trust Property to the extent available for
distribution to such Holder as provided in the Agreement.  This Certificate
does not purport to summarize the Agreement and reference is made to the
Agreement for information with respect to the interests, rights, benefits,
obligations, proceeds, and duties evidenced hereby.  A copy of the Agreement
may be examined during normal business hours at the principal office of the
Trustee, and at such other places, if any, designated by the Trustee, by any
Certificateholder upon request.

         The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Certificateholders under the Agreement at any
time by the Company and the Trustee with the consent of the Holders of
Certificates evidencing Fractional Undivided Interests aggregating not less
than a majority in interest in the Trust.  Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange hereof or in lieu hereof whether or not notation
of such consent is made upon this Certificate.  The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

         As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Register upon surrender of this Certificate for registration of transfer at the
offices or agencies maintained by the Trustee in its capacity as Registrar, or
by any successor Registrar, in the Borough of Manhattan, the City of New York,
duly endorsed or accompanied by a written instrument of transfer in form
satisfactory to the Trustee and the Registrar duly executed by the Holder
hereof or such Holder's attorney duly authorized in writing, and thereupon one
or more new Certificates of authorized denominations evidencing the same
aggregate Fractional Undivided Interest in the Trust will be issued to the
designated transferee or transferees.





<PAGE>   14
         The Certificates are issuable only as registered Certificates without
coupons in denominations of $1,000 Fractional Undivided Interest and any
integral multiples of $1,000 in excess thereof except that one Certificate may
be in a denomination of less than $1,000.  As provided in the Agreement and
subject to certain limitations therein set forth, Certificates are exchangeable
for new Certificates of authorized denominations and like series evidencing the
same aggregate Fractional Undivided Interest in the Trust, as requested by the
Holder surrendering the same. 

         No service charge will be made for any such registration of transfer or
exchange, but the Trustee shall require payment of a sum sufficient to cover any
tax or governmental charge payable in connection therewith.

         The Trustee, the Registrar, and any agent of the Trustee or the
Registrar may treat the person in whose name this Certificate is registered as
the owner hereof for all purposes, and neither the Trustee, the Registrar, nor
any such agent shall be affected by any notice to the contrary.

         The obligations and responsibilities created by the Agreement and the
Trust created thereby shall terminate upon the distribution to
Certificateholders of all amounts required to be distributed to them pursuant
to the Agreement and the disposition of all property held as part of the Trust
Property.





                                     -2-
<PAGE>   15
                           [FORM OF TRANSFER NOTICE]


         FOR VALUE RECEIVED the undersigned registered holder hereby sell(s),
assign(s) and transfer(s) unto

         Insert Taxpayer Identification No.

         _____________________________________________________________

         _____________________________________________________________

         Please print or typewrite name and address including postal zip code
         of assignee

         _____________________________________________________________

         the within Certificate and all rights thereunder, hereby irrevocably
         constituting and appointing

         _____________________________________________________________


         attorney to transfer said Certificate on the books of the Trust with
         full power of substitution in the premises.




Date:__________________

_______________________________________

         NOTICE: The signature to this assignment must correspond with the name
                 as written upon the face of the within-mentioned instrument in
                 every particular, without alteration or any change whatever.






<PAGE>   1

                                                                     EXHIBIT 4.2





                             TRUST SUPPLEMENT NO. 7
                          DATED AS OF AUGUST 28, 1996
                                       TO
                               PASS THROUGH TRUST
                                   AGREEMENT
                           DATED AS OF AUGUST 1, 1992


                             -----------------------


                  GENERAL AMERICAN TRANSPORTATION CORPORATION
                                      AND
                 THE FIRST NATIONAL BANK OF CHICAGO, AS TRUSTEE


                             -----------------------


                  GENERAL AMERICAN TRANSPORTATION CORPORATION
                           1996-1B PASS THROUGH TRUST
                7.86% PASS THROUGH CERTIFICATES, SERIES 1996-1B





<PAGE>   2
                                TRUST SUPPLEMENT

                          DATED AS OF AUGUST 28, 1996


                   PASS THROUGH CERTIFICATES, SERIES 1996-1B





                               Table of Contents





<TABLE>
<CAPTION>
SECTION                                       HEADING                                                                       PAGE
<S>              <C>                                                                                                          <C>
ARTICLE I        THE CERTIFICATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

  Section 1.01.  The Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2


ARTICLE II       DEFINITIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

  Section 2.01.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4


ARTICLE III      THE TRUSTEE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

  Section 3.01.  The Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
  Section 3.02.  Acceptance by Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4


ARTICLE IV       MISCELLANEOUS PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

  Section 4.01.  Basic Agreement Ratified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
  Section 4.02.  Termination of Trust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
  Section 4.03.  Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
  Section 4.04.  Execution in Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
</TABLE>





<PAGE>   3
                                TRUST SUPPLEMENT
                   PASS THROUGH CERTIFICATES, SERIES 1996-1B


         This Trust Supplement No. 7, dated as of August 28, 1996 (herein
called the "Trust Supplement") between General American Transportation
Corporation, a New York corporation (the "Company"), and The First National
Bank of Chicago, a national banking association, as trustee (the "Trustee"), to
the Pass Through Trust Agreement dated as of August 1, 1992, as supplemented,
between the Company and the Trustee (the "Basic Agreement").

                              W I T N E S S E T H:

         WHEREAS, the Company and the Trustee have heretofore executed and
delivered the Basic Agreement, unlimited as to the aggregate principal amount
of Certificates (unless specified herein capitalized terms used herein without
definition have the respective meanings specified heretofore in the Basic
Agreement) which may be issued thereunder;

         WHEREAS, each of two Owner Trustees, each acting on behalf of an Owner
Participant, will issue, on a non-recourse basis, Equipment Notes, among other
things, to finance a portion of the purchase price of Equipment purchased by
such Owner Trustee and leased to the Company pursuant to the related Lease;

         WHEREAS, pursuant to the terms and conditions of the Basic Agreement
as supplemented by this Trust Supplement (the "Agreement"), the Trustee shall
purchase such Equipment Notes issued by such Owner Trustees of the same tenor
as the Certificates issued thereunder and shall hold such Equipment Notes in
trust for the benefit of the Certificateholders;

         WHEREAS, the Trustee hereby declares the creation of this Trust for
the benefit of the Certificateholders, and the initial Certificateholders as
the grantors of the Trust, by their respective acceptances of the Certificates,
join in the creation of this Trust with the Trustee;

         WHEREAS, all of the conditions and requirements necessary to make this
Trust Supplement, when duly executed and delivered, a valid, binding and legal
instrument in accordance with its terms and for the purposes herein expressed,
have been done, performed and fulfilled, and the execution and delivery of this
Trust Supplement in the form and with the terms hereof have been in all
respects duly authorized;

         WHEREAS, this Trust Supplement is subject to the provisions of the
Trust Indenture Act of 1939, as amended, and shall, to the extent applicable,
be governed by such provisions;





<PAGE>   4
         NOW THEREFORE, in consideration of the premises herein, it is agreed
between the Company and the Trustee as follows:


                                   ARTICLE I
                                THE CERTIFICATES


         Section 1.01.  The Certificates.  There is hereby created a series of
Certificates to be issued under the Agreement to be distinguished and known as
"Pass Through Certificates, Series 1996-1B" (hereinafter defined as the "Series
1996-1B Certificates"). Each Certificate represents a Fractional Undivided
Interest in the Trust created hereby.  The terms and conditions applicable to
the Series 1996-1B Certificates are as follows:

         1.      The aggregate principal amount of the Series 1996-1B
Certificates that shall be authenticated under the Agreement (except for Series
1996-1B Certificates authenticated and delivered pursuant to Sections 3.03,
3.04 and 3.05 of the Basic Agreement) upon their initial issuance is
$29,578,000.

         2.      The Cut-Off Date shall be September 12, 1996.

         3.      The Regular Distribution Dates with respect to any payment of
Scheduled Payments means each February 28 and August 28 commencing February 28,
1997 until payment of all of the Scheduled Payments to be made under the
Equipment Notes has been made.

         4.      The Scheduled Payments shall be as set forth in Exhibit C
hereto.

         5.      The Special Distribution Dates are as follows: with respect to
the prepayment of any Equipment Note, other than pursuant to a refinancing in
accordance with Section 10.2 of the related Participation Agreement, the 28th
day of the month on which such prepayment is scheduled to occur pursuant to the
terms of the related Indenture; with respect to the prepayment of any Equipment
Note pursuant to a refinancing in accordance with Section 10.2 of the related
Participation Agreement, the Refunding Date (as defined in such related
Participation Agreement); and with respect to any other Special Payment
relating to an Equipment Note, the earliest  28th day of a month for which it
is practicable for the Trustee to give the applicable notice pursuant to
Section 4.02(c) of the Basic Agreement.

         6.      The Series 1996-1B Certificates shall be in the form attached
hereto as Exhibit A.  The Series 1996-1B Certificates shall be Book-Entry
Certificates and shall be subject to the conditions set forth in the Letter of
Representations between the Company and the Clearing Agency attached hereto as
Exhibit B.





                                      -2-
<PAGE>   5
         7.      The proceeds of the Series 1996-1B Certificates shall be used
to purchase the Equipment Notes at the Original Issue Prices specified below:

<TABLE>
<CAPTION>
                                   ORIGINAL                 PRINCIPAL
EQUIPMENT NOTE                    ISSUE PRICE                 AMOUNT                      MATURITY
<S>                                  <C>                <C>                                    <C>
96-1, I-B                            100%               $  4,938,000                           August 28, 2021
96-1, II-B                           100%               $ 15,482,000                           August 28, 2021
96-2, I-B                            100%               $  3,850,000                           August 28, 2020
96-2, II-B                           100%               $  5,308,000                           August 28, 2019
</TABLE>


         8.      Each of the two Owner Trustees, acting on behalf of an Owner
Participant, will issue on a non-recourse basis, the Equipment Notes, the
proceeds of which shall be used, among other things, to finance a portion of
the purchase price of the Equipment as set forth on Schedule 1 to the related
Participation Agreement.

         9.      The related Note Documents are as follows:

                 (a)  With respect to GATC Trust No. 96-1:

                      (i)  Trust Indenture and Security Agreement (GATC Trust
                 No. 96-1), dated as of August 28, 1996;

                      (ii)  Equipment Lease Agreement (GATC Trust No.
                 96-1), dated as of August 28, 1996;

                      (iii)  Participation Agreement (GATC Trust No. 96-1),
                 dated as of August 28, 1996;

                       (iv)    Indenture Supplement No. I (GATC Trust No.
                 96-1), dated as of August 28, 1996;

                       (v)  Indenture Supplement No. II (GATC Trust No.
                 96-1), dated as of August 28, 1996;

                       (vi)  Lease Supplement No. I (GATC Trust No. 96-1),
                 dated as of August 28, 1996; and

                       (vii)  Lease Supplement No. II (GATC Trust No.
                 96-1), dated as of August 28, 1996.

                 (b)  With respect to GATC Trust No. 96-2:

                        (i)  Trust Indenture and Security Agreement (GATC
                 Trust No. 96-2), dated as of August 28, 1996;

                        (ii)  Equipment Lease Agreement (GATC Trust No.
                 96-2), dated as of August 28, 1996;





                                      -3-
<PAGE>   6
                        (iii)  Participation Agreement (GATC Trust No. 96-2),
                 dated as of August 28, 1996;

                        (iv)    Indenture Supplement No. I (GATC Trust No.
                 96-2), dated as of August 28, 1996;

                        (v)  Indenture Supplement No. II (GATC Trust No.
                 96-2), dated as of August 28, 1996;

                        (vi)    Lease Supplement No. I (GATC Trust No. 96-2),
                 dated as of August 28, 1996; and

                        (vii)  Lease Supplement No. II (GATC Trust No.
                 96-2), dated as of August 28, 1996.


                                   ARTICLE II
                                  DEFINITIONS

         Section 2.01.    Definitions.  The following terms, notwith-standing
the definitions therefor in the Basic Agreement, shall have the following
meanings for all purposes relating to the Series 1996-1B Certificates
(including hereunder and under the Basic Agreement):

                                     NONE.


                                  ARTICLE III
                                  THE TRUSTEE

         Section 3.01.    The Trustee.  Subject to Section 7.04 of the Basic
Agreement, the Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Trust Supplement or the due
execution hereof by the Company, or for or in respect of the recitals and
statements contained herein, all of which recitals and statements are made
solely by the Company.

         Except as herein otherwise provided, no duties, responsibilities or
liabilities are assumed, or shall be construed to be assumed by the Trustee by
reason of this Trust Supplement other than as set forth in the Basic Agreement,
and this Trust Supplement is executed and accepted on behalf of the Trustee,
subject to all the terms and conditions set forth in the Basic Agreement, upon
the effectiveness thereof, as fully to all intents as if the same were herein
set forth at length.

         Section 3.02.  Acceptance by Trustee.  The Trustee, upon execution and
delivery of this Trust Supplement, acknowledges its acceptance of all right,
title, and interest in and to the Equipment Notes described herein and acquired
pursuant to Section





                                      -4-
<PAGE>   7
2.02 of the Basic Agreement and the Participation Agreements and declares that
the Trustee holds and will hold such right, title, and interest, together with
all other property constituting the Trust Property of the Trust created hereby,
for the benefit of all present and future holders of the Series 1996-1B
Certificates, upon the trusts set forth herein and in the Basic Agreement.  By
its payment for and acceptance of each Certificate issued to it hereunder, each
initial holder of the Series 1996-1B Certificates as grantor of the Trust
thereby joins in the creation and declaration of the Trust created hereby.


                                   ARTICLE IV
                            MISCELLANEOUS PROVISIONS

         Section 4.01.    Basic Agreement Ratified.  Except and so far as
herein expressly provided, all of the provisions, terms and conditions of the
Basic Agreement are in all respects ratified and confirmed; and the Basic
Agreement and this Trust Supplement shall be taken, read and construed as one
and the same instrument.

         Section 4.02.  Termination of Trust.  The Trust created hereby shall
terminate upon the distribution to all holders of the Series 1996-1B
Certificates all amounts required to be distributed to them pursuant to the
Basic Agreement and this Trust Supplement and the disposition of all property
held as part of the Trust Property of the Trust created hereby; provided,
however, that in no event shall the Trust created hereby continue beyond the
expiration of 21 years from the death of the last survivor of all of the
descendants of Joseph P. Kennedy, the late ambassador of the United States to
Great Britain, living on the date of this Trust Supplement.

         Section 4.03.    Governing Law.  THIS TRUST SUPPLEMENT AND THE SERIES
1996-1B CERTIFICATES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK.

         Section 4.04.    Execution in Counterparts.  This Trust Supplement may
be executed in any number of counterparts, each of which shall be an original,
but such counterparts shall together constitute but one instrument.





                                      -5-
<PAGE>   8
         IN WITNESS WHEREOF, the Company and the Trustee have caused this Trust
Supplement to be duly executed by their respective officers thereto duly
authorized, as of the day and year first written above.


                                       GENERAL AMERICAN TRANSPORTATION
                                         CORPORATION


                                       By:                            
                                           --------------------------
                                           Name:                      
                                                 --------------------
                                           Title:                     
                                                 --------------------



                                       THE FIRST NATIONAL BANK OF
                                         CHICAGO, AS TRUSTEE


                                       By:                            
                                          ---------------------------
                                          Name:                      
                                               ----------------------
                                          Title:                     
                                                ---------------------






                                      -6-
<PAGE>   9
                                                                       EXHIBIT A



                              FORM OF CERTIFICATE


         Unless this certificate is presented by an authorized representative
of DTC, a New York corporation ("DTC"), to Issuer or its agent for registration
of transfer, exchange or payment, and any certificate issued is registered in
the name of Cede & Co. or in such other name as is requested by an authorized
representative of DTC (and any payment is made to Cede & Co. or to such other
entity as is requested by an authorized representative of DTC), ANY TRANSFER,
PLEDGE OR OTHER USE HEREOF FOR VALUE or OTHERWISE BY OR TO ANY PERSON IS
WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest
herein.

                  General American Transportation Corporation
                           1996-1B PASS THROUGH TRUST
                               7.86% Pass Through
                          Certificate, Series 1996-1B
                              CUSIP _____________
               Final Regular Distribution Date:  August 28, 2021

         evidencing a fractional undivided interest in a trust, the property of
which includes certain Equipment Notes secured by certain railroad rolling
stock leased to General American Transportation Corporation.


Certificate
No. R-1                                $29,578,000 Fractional Undivided Interest
                                         representing .00003381 of the Trust per
                                                              $1,000 face amount

         THIS CERTIFIES THAT CEDE & CO., for value received, is the registered
owner of a $29,578,000 (Twenty-Nine Million Five Hundred and Seventy-Eight
Thousand Dollars) Fractional Undivided Interest in General American
Transportation Corporation 1996-1B Pass Through Trust (the "Trust") created by
The First National Bank of Chicago, as trustee (the "Trustee"), pursuant to a
Pass Through Trust Agreement dated as of August 1, 1992 and a related Trust
Supplement dated as of August 28, 1996 (collectively, the "Agreement") between
the Trustee and General American Transportation Corporation, a corporation
incorporated under New York law (the "Company"), a summary of certain of the
pertinent provisions of which is set forth below.  To the extent not otherwise
defined herein, the capitalized terms used herein have the meanings assigned to
them in the Agreement.  This Certificate is one of the duly authorized
Certificates designated as "7.86% Pass Through Certificates, Series





<PAGE>   10
1996-1B" (herein called the "Certificates").  This Certificate is issued under
and is subject to the terms, provisions, and conditions of the Agreement, to
which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.  The property of the Trust
includes certain Equipment Notes (the "Trust Property").  The Equipment Notes
are secured by a security interest in railroad rolling stock leased to the
Company.

         The Certificates represent fractional undivided interests in the Trust
and the Trust Property, and have no rights, benefits or interest in respect of
any other separate trust established pursuant to the terms of the Agreement for
any other series of certificates issued pursuant thereto.

         Subject to and in accordance with the terms of the Agreement, from
funds then available to the Trustee, there will be distributed on each February
28 and August 28 (a "Regular Distribution Date"), commencing on February 28,
1997, to the person in whose name this Certificate is registered at the close
of business on the day of the month which is 15 days preceding the Regular
Distribution Date, an amount in respect of the Scheduled Payments on the
Equipment Notes due on such Regular Distribution Date, the receipt of which has
been confirmed by the Trustee, equal to the product of the percentage interest
in the Trust evidenced by this Certificate and an amount equal to the sum of
such Scheduled Payments.  Subject to and in accordance with the terms of the
Agreement, in the event that Special Payments on the Equipment Notes are
received by the Trustee, from funds then available to the Trustee, there shall
be distributed on the applicable Special Distribution Date, to the Person in
whose name this Certificate is registered at the close of business on the day
of the month which is 15 days preceding the Special Distribution Date, an
amount in respect of such Special Payments on the Equipment Notes, the receipt
of which has been confirmed by the Trustee, equal to the product of the
percentage interest in the Trust evidenced by this Certificate and an amount
equal to the sum of such Special Payments so received. If a Regular
Distribution Date or Special Distribution Date is not a Business Day,
distribution shall be made on the immediately following Business Day.  The
Special Distribution Date shall be:  with respect to the prepayment of any
Equipment Note, other than pursuant to a refinancing in accordance with Section
10.2 of a Participation Agreement, the 28th day of the month on which such
prepayment is scheduled to occur pursuant to the terms of the related
Indenture; with respect to the prepayment of any Equipment Note pursuant to a
refinancing in accordance with Section 10.2 of a Participation Agreement, the
Refunding Date (as defined in such Participation Agreement); and with respect
to any other Special Payment relating to an Equipment Note, the earliest 28th
day of a month for which it is practicable for the Trustee to give the
applicable notice pursuant to Section 4.02(c) of the Basic





                                      -2-
<PAGE>   11
Agreement.  The Trustee shall mail notice of each Special Payment and the
Special Distribution Date therefor to the Holders of the Certificates.

         Distributions on this Certificate will be made by the Trustee (i) by
check mailed to the person entitled thereto or (ii) prior to the time
Definitive Certificates are issued by wire transfer of same-day funds to the
account designated by the Certificateholder to the Trustee on or prior to the
applicable Record Date, without the presentation or surrender of this
Certificate or the making of any notation hereon.  Except as otherwise provided
in the Agreement and notwithstanding the above, the final distribution on this
Certificate will be made after notice mailed by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency of the Trustee specified in such notice.

         This Certificate shall be governed by and construed in accordance with
the laws of the State of New York.

         Reference is hereby made to the further provisions of this Certificate
set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

         Unless the certificate of authentication hereon has been executed by
the Trustee, by manual signature, this Certificate shall not be entitled to any
benefit under the Agreement or be valid for any purpose.





                                      -3-
<PAGE>   12
         IN WITNESS WHEREOF, the Trustee has caused this Certificate to be duly
executed.



                                       General American Transportation
                                         Corporation 1996-1B Pass
                                         Through Trust


                                       By: The First National Bank of
                                           Chicago, as Trustee


                                       By:
                                          -------------------------------
                                          Title



             [FORM OF THE TRUSTEE'S CERTIFICATE OF AUTHENTICATION]


Dated: August 28, 1996

                                  This is one of the Certificates referred
                                  to in the within-mentioned Agreement.

                                                            
                                           The First National Bank of
                                             Chicago, as Trustee

                                           By:
                                              ---------------------------
                                              Authorized Officer






                                      -4-
<PAGE>   13
                            [REVERSE OF CERTIFICATE]


         The Certificates do not represent a direct obligation of, or an
obligation guaranteed by, or an interest in, the Company or the Trustee or any
affiliate thereof.  The Certificates are limited in right of payment, all as
more specifically set forth on the face hereof and in the Agreement.  All
payments or distributions made to Certificateholders under the Agreement shall
be made only from the Trust Property and only to the extent that the Trustee
shall have sufficient income or proceeds from the Trust Property to make such
payments in accordance with the terms of the Agreement.  Each Holder of this
Certificate, by its acceptance hereof, agrees that it will look solely to the
income and proceeds from the Trust Property to the extent available for
distribution to such Holder as provided in the Agreement.  This Certificate
does not purport to summarize the Agreement and reference is made to the
Agreement for information with respect to the interests, rights, benefits,
obligations, proceeds, and duties evidenced hereby.  A copy of the Agreement
may be examined during normal business hours at the principal office of the
Trustee, and at such other places, if any, designated by the Trustee, by any
Certificateholder upon request.

         The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Certificateholders under the Agreement at any
time by the Company and the Trustee with the consent of the Holders of
Certificates evidencing Fractional Undivided Interests aggregating not less
than a majority in interest in the Trust.  Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange hereof or in lieu hereof whether or not notation
of such consent is made upon this Certificate.  The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

         As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Register upon surrender of this Certificate for registration of transfer at the
offices or agencies maintained by the Trustee in its capacity as Registrar, or
by any successor Registrar, in the Borough of Manhattan, the City of New York,
duly endorsed or accompanied by a written instrument of transfer in form
satisfactory to the Trustee and the Registrar duly executed by the Holder
hereof or such Holder's attorney duly authorized in writing, and thereupon one
or more new Certificates of authorized denominations evidencing the same
aggregate Fractional Undivided Interest in the Trust will be issued to the
designated transferee or transferees.





<PAGE>   14
         The Certificates are issuable only as registered Certificates without
coupons in denominations of $1,000 Fractional Undivided Interest and any
integral multiples of $1,000 in excess thereof except that one Certificate may
be in a denomination of less than $1,000.  As provided in the Agreement and
subject to certain limitations therein set forth, Certificates are exchangeable
for new Certificates of authorized denominations and like series evidencing the
same aggregate Fractional Undivided Interest in the Trust, as requested by the
Holder surrendering the same.

         No service charge will be made for any such registration of transfer or
exchange, but the Trustee shall require payment of a sum sufficient to cover any
tax or governmental charge payable in connection therewith.

         The Trustee, the Registrar, and any agent of the Trustee or the
Registrar may treat the person in whose name this Certificate is registered as
the owner hereof for all purposes, and neither the Trustee, the Registrar, nor
any such agent shall be affected by any notice to the contrary.

         The obligations and responsibilities created by the Agreement and the
Trust created thereby shall terminate upon the distribution to
Certificateholders of all amounts required to be distributed to them pursuant
to the Agreement and the disposition of all property held as part of the Trust
Property.





                                      -2-
<PAGE>   15
                           [FORM OF TRANSFER NOTICE]


         FOR VALUE RECEIVED the undersigned registered holder hereby sell(s),
assign(s) and transfer(s) unto

         Insert Taxpayer Identification No.

         _____________________________________________________________

         _____________________________________________________________

         Please print or typewrite name and address including postal zip code
         of assignee

         _____________________________________________________________

         the within Certificate and all rights thereunder, hereby irrevocably
         constituting and appointing

         _____________________________________________________________


         attorney to transfer said Certificate on the books of the Trust with
         full power of substitution in the premises.




Date:__________________

_______________________________________

         NOTICE: The signature to this assignment must correspond with the name
                 as written upon the face of the within-mentioned instrument in
                 every particular, without alteration or any change whatever.






<PAGE>   1





                                                                EXHIBIT 4.3





                     TRUST INDENTURE AND SECURITY AGREEMENT
                             (GATC TRUST NO. 96-1)



                          DATED AS OF AUGUST 28, 1996



                                    BETWEEN



                           FIRST SECURITY BANK, N.A.,

                                                                AS OWNER TRUSTEE


                                      AND


                      THE FIRST NATIONAL BANK OF CHICAGO,

                                                            AS INDENTURE TRUSTEE


                         COVERED HOPPERS AND TANK CARS





<PAGE>   2
                               TABLE OF CONTENTS

<TABLE> 
<CAPTION>
                                                                                                                      PAGE
||                                                                                                                    ----


<S>              <C>                                                                                                   <C>
Article I.       Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                 Section 1.01.  Certain Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4

Article II.      The Equipment Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                 Section 2.01.  Form of Equipment Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                 Section 2.02.  Terms of Equipment Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
                 Section 2.03.  Payment from Indenture Estate Only  . . . . . . . . . . . . . . . . . . . . . . . . .   9
                 Section 2.04.  Method of Payment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
                 Section 2.05.  Application of Payments to Principal
                                           Amount and Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
                 Section 2.06.  Termination of Interest in Indenture Estate . . . . . . . . . . . . . . . . . . . . .  10
                 Section 2.07.  Transfer of Equipment Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
                 Section 2.08.  Mutilated, Destroyed, Lost or Stolen
                                            Equipment Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 Section 2.09.  Payment of Transfer Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 Section 2.10.  Prepayments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 Section 2.11.  Equally and Ratably Secured . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13

Article III.     Receipt, Distribution and Application of Income from the Indenture Estate; Assumption of
                 Obligations of Owner Trustee by the Lessee . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                 Section 3.01.  Basic Rent Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                 Section 3.02.  Payments in the Event of Prepayment . . . . . . . . . . . . . . . . . . . . . . . . .  14
                 Section 3.03.  Payments after Indenture Event of Default . . . . . . . . . . . . . . . . . . . . . .  14
                 Section 3.04.  Other Payments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
                 Section 3.05.  Distribution of Excepted Property . . . . . . . . . . . . . . . . . . . . . . . . . .  16
                 Section 3.06.  Assumption of Obligations of Owner
                                           Trustee by the Lessee  . . . . . . . . . . . . . . . . . . . . . . . . . .  16

Article IV.      Remedies of the Indenture Trustee upon an Indenture Event of Default . . . . . . . . . . . . . . . .  18
                 Section 4.01.  Indenture Events of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
                 Section 4.02.  Acceleration; Rescission and Annulment  . . . . . . . . . . . . . . . . . . . . . . .  20
                 Section 4.03.  Remedies with Respect to Indenture Estate . . . . . . . . . . . . . . . . . . . . . .  20
                 Section 4.04.  Right to Cure; Option to Purchase; Etc. . . . . . . . . . . . . . . . . . . . . . . .  23
                 Section 4.05.  Rights of Lessee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
                 Section 4.06.  Waiver of Existing Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
</TABLE>





                                       i
<PAGE>   3
                           TABLE OF CONTENTS (CONT'D)

<TABLE>
<CAPTION>
                                                                                                                      PAGE
                                                                                                                      ----

<S>              <C>                                                                                                   <C>
Article V.       Duties of the Indenture Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
                 Section 5.01.  Action upon Indenture Event of Default  . . . . . . . . . . . . . . . . . . . . . . .  26
                 Section 5.02.  Action upon Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                 Section 5.03.  Indemnification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                 Section 5.04.  No Duties Except as Specified in Indenture
                                           or Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                 Section 5.05.  No Action Except under Lease, Indenture
                                           or Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                 Section 5.06.  Disposition of Units  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                 Section 5.07.  Indenture Supplements for Replacements  . . . . . . . . . . . . . . . . . . . . . . .  29
                 Section 5.08.  Effect of Replacements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                 Section 5.09.  Withholding Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                 Section 5.10.  Lessee's Right of Quiet Enjoyment . . . . . . . . . . . . . . . . . . . . . . . . . .  29

Article VI.      The Owner Trustee and the Indenture Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                 Section 6.01.  Acceptance of Trusts and Duties . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                 Section 6.02.  Absence of Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
                 Section 6.03.  No Representations or Warranties as to
                                           the Equipment or Documents . . . . . . . . . . . . . . . . . . . . . . . .  30
                 Section 6.04.  No Segregation of Moneys; No Interest; Investments  . . . . . . . . . . . . . . . . .  30
                 Section 6.05.  Reliance; Agents; Advice of Counsel . . . . . . . . . . . . . . . . . . . . . . . . .  31
                 Section 6.06.  Not Acting in Individual Capacity . . . . . . . . . . . . . . . . . . . . . . . . . .  32

Article VII.     Certain Limitations on Owner Trustee's and Indenture Trustee's Rights  . . . . . . . . . . . . . . .  32

Article VIII.    Successor Trustees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
                 Section 8.01.  Notice of Successor Owner Trustee . . . . . . . . . . . . . . . . . . . . . . . . . .  32
                 Section 8.02.  Resignation of Indenture Trustee; Appointment
                                           of Successor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32

Article IX.      Supplements and Amendments to this Indenture and Other Documents . . . . . . . . . . . . . . . . . .  34
                 Section 9.01.  Supplemental Indentures without Consent
                                           of Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
                 Section 9.02.  Indenture Trustee Protected . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                 Section 9.03.  Request of Substance, Not Form  . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                 Section 9.04.  Documents Mailed to Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                 Section 9.05.  Amendments, Waivers, Etc. of Other Documents  . . . . . . . . . . . . . . . . . . . .  36
</TABLE>





                                      ii
<PAGE>   4
                           TABLE OF CONTENTS (CONT'D)

<TABLE> 
<CAPTION>                                                                                  
                                                                                                                      PAGE
                                                                                                                      ----

<S>              <C>                                                                                                   <C>
Article X.       Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 Section 10.01.  Termination of Indenture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 Section 10.02.  No Legal Title to Indenture Estate in
                                           Holders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 Section 10.03.  Sale of Equipment by Indenture Trustee
                                           is Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 Section 10.04.  Remedies Cumulative  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 Section 10.05.  Discontinuance of Proceedings  . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
                 Section 10.06.  Indenture and Equipment Notes for Benefit of
                                           Owner Trustee, Indenture Trustee, Owner
                                           Participant and Holders Only . . . . . . . . . . . . . . . . . . . . . . .  40
                 Section 10.07.  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
                 Section 10.08.  Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 10.09.  Separate Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 10.10.  Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 10.11.  Headings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
                 Section 10.12.  Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
                 Section 10.13.  Normal Commercial Relations  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
                 Section 10.14.  No Recourse Against Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
||

EXHIBIT A         -       Form of Trust Indenture Supplement
EXHIBIT B         -       Terms of Equipment Notes
EXHIBIT C         -       Loan Participants
APPENDIX A        -       Definitions
ANNEX A           -       Amortization Schedule
</TABLE>





                                     iii
<PAGE>   5
                     TRUST INDENTURE AND SECURITY AGREEMENT
                             (GATC TRUST NO. 96-1)

                 This TRUST INDENTURE AND SECURITY AGREEMENT (GATC Trust No.
96-1) dated as of August 28, 1996 (this "Indenture"), between First Security
Bank, N.A., a national banking association, not in its individual capacity,
except as otherwise expressly set forth in Section 6.03 hereof, but solely as
trustee under the Trust Agreement referred to below and any successor appointed
in accordance with the terms hereof and of the Trust Agreement (herein in such
trustee capacity called the "Owner Trustee"), and The First National Bank of
Chicago, a national banking association, as Indenture Trustee hereunder and any
successor appointed in accordance with the terms hereof (herein called the
"Indenture Trustee");

                                  WITNESSETH:

                 WHEREAS, the Owner Participant and the Owner Trustee in its
individual capacity have entered into the Trust Agreement whereby, among other
things, (i) the Owner Trustee establishes a certain trust for the use and
benefit of the Owner Participant, subject, however, to the Indenture Estate
created pursuant hereto for the use and benefit of, and with the priority of
payment to, the holders of the Equipment Notes, and (ii) the Owner Trustee is
authorized and directed to execute and deliver this Indenture;

                 WHEREAS, the Owner Trustee and the Indenture Trustee desire by
this Indenture, among other things, (i) to provide for the issuance by the
Owner Trustee of the Equipment Notes, and (ii) to provide for the assignment,
mortgage and pledge by the Owner Trustee to the Indenture Trustee, as part of
the Indenture Estate hereunder, among other things, of, and the grant of a
security interest in, certain of the Owner Trustee's right, title and interest
in and to the Equipment and the Lease and certain payments and other amounts
received hereunder or thereunder, in accordance with the terms hereof, in
trust, as security for, among other things, the Owner Trustee's obligations for
the equal and ratable benefit of the holders of the Equipment Notes; and

                 WHEREAS, all things necessary to make this Indenture the
legal, valid and binding obligation of the Owner Trustee and the Indenture
Trustee, for the uses and purposes herein set forth, in accordance with its
terms, have been done and performed and have happened.

                                GRANTING CLAUSE

                 NOW, THEREFORE, THIS TRUST INDENTURE AND SECURITY AGREEMENT
WITNESSETH, that, to secure the prompt payment of the principal of and interest
and premium, if any, on and all other amounts due with respect to, the
Equipment Notes from time to time outstanding hereunder and the performance and
observance by the Owner Trustee of all the agreements, covenants and provisions
herein and in the Equipment Notes all for the benefit of the holders of the
Equipment Notes, and for the uses and purposes and subject







<PAGE>   6
to the terms and provisions hereof, and in consideration of the premises and of
the covenants herein contained, and of the acceptance of the Equipment Notes by
the Loan Participant, the Owner Trustee does hereby sell, assign, transfer,
convey, mortgage, pledge, and confirm unto the Indenture Trustee, its
successors and assigns, for the security and benefit of the holders of the
Equipment Notes from time to time, a first priority security interest in and
mortgage lien on all right, title and interest of the Owner Trustee in and to
the following described property, rights, interests and privileges insofar as
it does not constitute Excepted Property (which collectively, including all
property hereafter required to be subjected to the Lien of this Indenture by
any instrument supplemental hereto, but excluding Excepted Property, being
herein called the "Indenture Estate"), to wit:

                 (1)      the Lease, including, without limitation, all amounts
         of Basic Rent, Supplemental Rent, insurance proceeds and other
         payments of any kind for or with respect to the Equipment, subject to
         Lessee's rights under the Lease, including, without limitation,
         Lessee's right of quiet enjoyment;

                 (2)      the Equipment, the Replacement Units and all
         substitutions therefor in which the Owner Trustee shall from time to
         time acquire an interest under the Lease, all as more particularly
         described in the Indenture Supplements and Lease Supplements executed
         and delivered with respect to the Equipment or any such Replacement
         Units or any substitutions therefor, as provided in this Indenture and
         the Lease;

                 (3)      all requisition proceeds with respect to the
         Equipment or any Unit thereof (to the extent of the Owner Trustee's
         interest therein pursuant to the terms of the Lease);

                 (4)      all monies and securities now or hereafter paid or
         deposited or required to be paid or deposited with the Indenture
         Trustee pursuant to any term of this Indenture, the Lease or the
         Participation Agreement or required to be held by the Indenture
         Trustee hereunder or thereunder; and

                 (5)      all proceeds of the foregoing.

                 Notwithstanding the foregoing provisions:

                 (a)      there shall be excluded from the foregoing sale,
         assignment, transfer, conveyance, mortgage, pledge or security
         interest granted by this Indenture and from the Indenture Estate all
         Excepted Property;

                 (b)      (i)  the Owner Trustee and the Owner Participant
         shall at all times retain the right, to the exclusion of the Indenture
         Trustee (A) to Excepted Property and to commence and prosecute an
         action at law to obtain such Excepted Property and (B) to adjust Basic
         Rent, the percentages relating to Stipulated Loss Value and
         Termination





                                      2
<PAGE>   7
         Value and the Early Purchase Price and the Basic Term Purchase Price
         as provided in Section 3.4 of the Lease and Section 2.6 of the
         Participation Agreement; and

                 (ii)     the Owner Trustee and the Indenture Trustee shall
         each retain the right to receive from Lessee all notices,
         certificates, reports, filings, opinions of counsel, copies of all
         documents and all information which the Lessee is permitted or
         required to give or furnish to the Lessor pursuant to the Lease or to
         the Owner Trustee pursuant to any other Operative Agreement and to
         exercise the inspection rights provided for in Section 13.2 of the
         Lease, to give any notice of default under Section 15 of the Lease;
         and

                 (c)      the leasehold interest granted to the Lessee under
         the Lease shall not be subject to the security interest granted by
         this Indenture, and nothing in this Indenture shall affect the rights
         of the Lessee under the Lease so long as no Lease Event of Default has
         occurred and is continuing.

                 TO HAVE AND TO HOLD all and singular the aforesaid property
unto the Indenture Trustee, its successors and assigns, in trust for the
benefit and security of the holders of the Equipment Notes from time to time,
without any priority of any one Equipment Note over any other, and for the uses
and purposes, and subject to the terms and provisions, set forth in this
Indenture.

                 It is expressly agreed that anything herein contained to the
contrary notwithstanding, the Owner Trustee shall remain liable under each of
the Operative Agreements to which it is a party to perform all of the
obligations, if any, assumed by it thereunder, all in accordance with and
pursuant to the terms and provisions thereof, and the Indenture Trustee and the
holders of the Equipment Notes shall have no obligation or liability under any
of the Operative Agreements to which the Owner Trustee is a party by reason of
or arising out of this assignment, nor shall the Indenture Trustee (unless the
Indenture Trustee shall have become the "Lessor" under the Lease) or the
holders of the Equipment Notes be required or obligated in any manner to
perform or fulfill any obligations of the Owner Trustee under or pursuant to
any of the Operative Agreements to which the Owner Trustee is a party or,
except as herein expressly provided, to make any payment, or to make any
inquiry as to the nature or sufficiency of any payment received by it, or
present or file any claim, or take any action to collect or enforce the payment
of any amounts which may have been assigned to it or to which it may be
entitled at any time or times.

                 The Owner Trustee does hereby constitute the Indenture Trustee
the true and lawful attorney of the Owner Trustee, irrevocably, with full power
(in the name of the Owner Trustee or otherwise), to ask, require, demand,
receive, compound and give acquittance for any and all moneys and claims for
moneys due and to become due to the Owner Trustee (other than Excepted
Property), under or arising out of the Lease, or to endorse any checks or other
instruments or orders in connection therewith and to file any claims or take
any action or institute any proceedings which the Indenture Trustee may deem to
be necessary or advisable in the





                                      3
<PAGE>   8
premises.  The Owner Trustee has directed the Lessee to make all payments of
Rent (other than Excepted Property) payable to the Owner Trustee by the Lessee
and all other amounts which are required to be paid to or deposited with the
Owner Trustee pursuant to the Lease (other than Excepted Property) directly to
the Indenture Trustee at such address as the Indenture Trustee shall specify,
for application as provided in this Indenture.  The Owner Trustee agrees that
promptly on receipt thereof, it will transfer to the Indenture Trustee any and
all moneys from time to time received by it constituting part of the Indenture
Estate, for distribution by the Indenture Trustee pursuant to this Indenture,
except that the Owner Trustee shall accept for distribution pursuant to the
Trust Agreement any amounts distributed to it by the Indenture Trustee as
expressly provided in this Indenture and any Excepted Property.

                 The Owner Trustee agrees that at any time and from time to
time, upon the written request of the Indenture Trustee, the Owner Trustee will
promptly and duly execute and deliver or cause to be executed and delivered any
and all such further instruments and documents as the Indenture Trustee may
reasonably deem to be necessary in order to obtain the full benefits of this
assignment and of the rights and powers herein granted.

                 The Owner Trustee does hereby warrant and represent that it
has not assigned or pledged, and hereby covenants that it will not assign or
pledge, so long as the assignment hereunder shall remain in effect, any of its
right, title or interest hereby assigned, to anyone other than the Indenture
Trustee, and that it will not (other than in respect of Excepted Property),
except as provided in or permitted by this Indenture, accept any payment from
the Lessee, enter into an agreement amending or supplementing any of the
Operative Agreements, execute any waiver or modification of, or consent under
the terms of any of the Operative Agreements (other than the Tax Indemnity
Agreement), settle or compromise any claim (other than claims in respect of
Excepted Property) against the Lessee arising under any of the Operative
Agreements, or submit or consent to the submission of any dispute, difference
or other matter arising under or in respect of any of the Operative Agreements,
to arbitration thereunder.

                 IT IS HEREBY COVENANTED AND AGREED by and between the parties
hereto as follows:

                                   ARTICLE I.
                                  DEFINITIONS

                 Section 1.01.  Certain Definitions.  Unless the context
otherwise requires, all capitalized terms used herein and not otherwise defined
shall have the meanings set forth in Appendix A hereto for all purposes of this
Indenture.  All references to articles, sections, clauses, schedules and
appendices in this Indenture are to articles, sections, clauses, schedules and
appendices in and to this Indenture unless otherwise indicated.





                                      4
<PAGE>   9
                                  ARTICLE II.
                              THE EQUIPMENT NOTES

                 Section 2.01.  Form of Equipment Notes.  The Equipment Notes
shall be substantially in the form set forth below:

                             _____% EQUIPMENT NOTE
                                  SERIES [A/B]

                (Secured by, among others, Lease Obligations of
                  General American Transportation Corporation)

            Issued in Connection with certain Railroad Rolling Stock


No. ______                                                    Chicago, Illinois 
                                                              August 28, 1996  
$________________        


                 First Security Bank, N.A., not in its individual capacity, but
solely as owner trustee (herein in such capacity called the "Owner Trustee")
under that certain Trust Agreement (GATC Trust No. 96-1), dated as of August
28, 1996, as from time to time supplemented and amended (herein called the
"Trust Agreement"), between the Owner Trustee in its individual capacity and
the institution referred to therein as the "Owner Participant", hereby promises
to pay to ________________________________, or registered assigns, the
principal sum of $________________, in lawful currency of the United States of
America, in installments payable on the dates set forth in Exhibit A hereto,
commencing February 28, 1997 and thereafter to and including August 28, 20__
each such installment to be in an amount equal to the corresponding percentage
(if any) of the remaining principal amount hereof set forth in Exhibit A
hereto, together with interest thereon on the amount of such principal amount
remaining unpaid from time to time from and including the date hereof until
such principal amount shall be due and payable, payable on each August 28 and
February 28, commencing February 28, 1997, to the maturity date hereof at the
rate of ____% per annum (computed on the basis of a 360-day year of twelve
30-day months).  Interest on any overdue principal and (to the extent legally
enforceable) on overdue interest shall be paid from the due date thereof at the
rate of ____% per annum (computed on the basis of a 360-day year of twelve
30-day months), payable on demand.

                 All payments of principal and interest and premium, if any, to
be made hereunder and under the Trust Indenture and Security Agreement (GATC
Trust No. 96-1), dated as of August 28, 1996 as from time to time amended and
supplemented (herein called the "Indenture", the defined terms therein not
otherwise defined herein being used herein with the same meanings), between the
Owner Trustee and The First National Bank of Chicago, as Indenture




                                      5
<PAGE>   10
Trustee thereunder for the holder of this Equipment Note and the holders of
other Equipment Notes outstanding thereunder (herein in such capacity called
the "Indenture Trustee") shall be made only from the income and proceeds from
the Indenture Estate and only to the extent that the Indenture Trustee shall
have sufficient income or proceeds from the Indenture Estate to make such
payments in accordance with the terms of Article III of the Indenture.  Each
holder hereof, by its acceptance of this Equipment Note, agrees that it will
look solely to the income and proceeds from the Indenture Estate to the extent
available for distribution to the holder hereof as provided in the Indenture
and that none of the Owner Trustee, the Owner Participant, the Indenture
Trustee or their permitted successors and assigns is or shall be personally
liable to the holder hereof for any amount payable under this Equipment Note or
the Indenture or, except as expressly provided in the Participation Agreement
or the Indenture, for any liability under the Participation Agreement or (in
the case of the Owner Trustee or the Indenture Trustee) the Indenture.

                 Payments with respect to the principal amount hereof, premium,
if any, and interest thereon shall be payable in U.S. dollars in immediately
available funds at the principal bond and trustee administration office of the
Indenture Trustee, or as otherwise provided in the Indenture.  Each such
payment shall be made on the date such payment is due and without any
presentment or surrender of this Equipment Note.  Whenever the date scheduled
for any payment to be made hereunder or under the Indenture shall not be a
Business Day, then such payment need not be made on such scheduled date but may
be made on the next succeeding Business Day with the same force and effect as
if made on such scheduled date and (provided such payment is made on such next
succeeding Business Day) no interest shall accrue on the amount of such payment
from and after such scheduled date to the time of such payment on such next
succeeding Business Day.

                 Each holder hereof, by its acceptance of this Equipment Note,
agrees that each payment received by it hereunder shall be applied, first, to
the payment of accrued but unpaid interest on this Equipment Note then due,
second, to the payment of the unpaid principal amount of this Equipment Note
then due, third, to the payment of any premium then due, and fourth, to the
payment of the remaining outstanding principal amount of this Equipment Note;
provided, that the Owner Trustee may only prepay this Equipment Note as
provided in Sections 2.10, 3.02 and 3.03 of the Indenture.

                 This Equipment Note is one of the Equipment Notes referred to
in the Indenture which have been or are to be issued by the Owner Trustee
pursuant to the terms of the Indenture and relates to the Units described in
Lease Supplement No. __.  The Indenture Estate is held by the Indenture Trustee
as security for the Equipment Notes.  Reference is hereby made to the Indenture
for a statement of the rights of the holder of, and the nature and extent of
the security for, this Equipment Note, as well as for a statement of the terms
and conditions of the trusts created by the Indenture, to all of which terms
and conditions in the Indenture each holder hereof agrees by its acceptance of
this Equipment Note.





                                      6
<PAGE>   11
                 This Equipment Note is not subject to redemption or prepayment
except as provided in Sections 2.10, 3.02 and 3.03 of the Indenture.  This
Equipment Note is subject to purchase by the Owner Trustee without a premium as
provided in Section 4.04(b) of the Indenture.  The holder hereof, by its
acceptance of this Equipment Note, agrees to be bound by said provisions.

                 This Equipment Note is a registered Equipment Note and is
transferable, as provided in the Indenture, only upon surrender of this
Equipment Note for registration of transfer duly endorsed by, or accompanied by
a written statement of transfer duly executed by, the registered holder hereof
or his attorney duly authorized in writing.  Prior to the due presentation for
registration of transfer of this Equipment Note, the Owner Trustee and the
Indenture Trustee may deem and treat the registered holder of this Equipment
Note as the absolute owner and holder hereof for the purpose of receiving
payment of all amounts payable with respect hereto and for all other purposes
and shall not be affected by any notice to the contrary.

                 THIS EQUIPMENT NOTE HAS NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933 AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT.
THIS EQUIPMENT NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK.

                 Unless the certificate of authentication hereon has been
executed by or on behalf of the Indenture Trustee by manual signature, this
Equipment Note shall not be entitled to any benefit under the Indenture or be
valid or obligatory for any purpose.

                 In Witness Whereof, the Owner Trustee has caused this
Equipment Note to be executed by one of its authorized officers as of the date
hereof.


                                        First Security Bank, N.A.,
                                        not in its individual capacity,
                                        but solely as Owner Trustee


                                        By:_____________________________________





                                      7
<PAGE>   12
         [FORM OF INDENTURE TRUSTEE'S CERTIFICATE OF AUTHENTICATION]

    This is one of the Equipment Notes referred to in the within-mentioned
                                  Indenture.

                                        The First National Bank of Chicago,
                                        as Indenture Trustee


                                        By:_____________________________________
                                                      Authorized Officer

        [Here insert from Annex A, the related Amortization Schedule]

                 Section 2.02.  Terms of Equipment Notes.  There shall be
issued and delivered to the Loan Participant one Equipment Note for each Series
related to each Lease Supplement executed and delivered in respect of the Units
delivered on the Closing Date in the maturity, principal amount and bearing the
interest rate as set forth for such Series in Exhibit B hereto, and the
Equipment Notes related to each such Lease Supplement shall be in an aggregate
principal amount equal to that portion of the loan made by the Loan Participant
to the Owner Trustee pursuant to Section 2 of the Participation Agreement
relating to the Units under such Lease Supplement.  Each such Equipment Note
shall evidence the loan made by the Loan Participant in connection with the
purchase of the Equipment by the Owner Trustee from the Lessee, each such
Equipment Note to be substantially in the form set forth in Section 2.01, with
deletions and insertions as appropriate, duly authenticated by the Indenture
Trustee and dated the Closing Date of the Equipment, and as having been issued
in connection with the Equipment under a related Lease Supplement.

                 The principal amount of and interest on each Equipment Note
issued pursuant to the provisions of this Indenture shall be payable as set
forth in the form thereof contained in Section 2.01 and Annex A.  Interest
accrued on the Equipment Notes shall be computed on the basis of a 360-day year
of twelve 30-day months on the principal amount thereof remaining unpaid from
time to time from and including the date thereof to but excluding the date of
payment. The Owner Trustee shall furnish to the Indenture Trustee a copy of
each Equipment Note issued pursuant to the provisions of this Indenture.  The
aggregate principal amount of Equipment Notes of any one Series which may be
outstanding at any one time shall be limited to the aggregate amount for such
Series set forth in Exhibit B hereto.  The aggregate principal amount of all
Equipment Notes which may be outstanding at any one time shall be limited to
the aggregate amount set forth in Exhibit B hereto.

                 No Equipment Note shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose, unless it shall have been
authenticated by or on behalf of the Indenture Trustee by manual signature.





                                      8
<PAGE>   13
                 Section 2.03.  Payment from Indenture Estate Only.  All
payments to be made under the Equipment Notes and this Indenture shall be made
only from the income and the proceeds from the Indenture Estate and only to the
extent that the Indenture Trustee shall have received sufficient income or
proceeds from the Indenture Estate to make such payments in accordance with the
terms of Article III hereof.  Each holder of an Equipment Note, by its
acceptance of such Equipment Note, agrees that it will look solely to the
income and proceeds from the Indenture Estate to the extent available for
distribution to such holder as herein provided and that none of the Owner
Trustee, the Owner Participant, the Indenture Trustee or their permitted
successors and assigns is or shall be personally liable to the holder of any
Equipment Note for any amount payable under such Equipment Note or the
Indenture or, except as expressly provided in the Participation Agreement or
the Indenture, for any liability under the Participation Agreement or (in the
case of the Owner Trustee or the Indenture Trustee) the Indenture.

                 Section 2.04.  Method of Payment.  (a) The principal of and
premium, if any, and interest on each Equipment Note will be payable in U.S.
dollars in immediately available funds at the principal corporate trust
administration office of the Indenture Trustee or as otherwise directed in the
manner provided herein.  Notwithstanding the foregoing or any provision in any
Equipment Note to the contrary, the Indenture Trustee will pay, or cause to be
paid, if so requested by any holder of an Equipment Note by written notice to
the Owner Trustee and the Indenture Trustee, all amounts payable by the Owner
Trustee hereunder to such holder or a nominee therefor either (i) by
transferring by wire in immediately available funds to an account maintained by
such holder with a bank in the United States the amount to be distributed to
such holder or (ii) by mailing a check denominated in U.S. dollars to such
holder at such address as such holder shall have specified in such notice, in
any case without any presentment or surrender of any Equipment Note, except
that the holder of an Equipment Note shall surrender such Equipment Note to the
Indenture Trustee upon payment in full of the principal amount of and interest
on such Equipment Note and such other sums payable to such holder hereunder or
under the Equipment Note.

                 (b)      Whenever the date scheduled for any payment to be
made hereunder or under any Equipment Note shall not be a Business Day, then
such payment need not be made on such scheduled date but may be made on the
next succeeding Business Day with the same force and effect as if made on such
scheduled date and (provided such payment is made on such next succeeding
Business Day) no interest shall accrue on the amount of such payment from and
after such scheduled date to the time of such payment on such next succeeding
Business Day.

                 Section 2.05.  Application of Payments to Principal Amount and
Interest.  In the case of each Equipment Note, each payment of principal
thereof and premium, if any, and interest thereon shall be applied, first, to
the payment of accrued but unpaid interest on such Equipment Note then due
thereunder, second, to the payment of the unpaid principal amount of such
Equipment Note then due thereunder, third, to the payment of any premium then
due thereon and fourth, to the payment of the remaining outstanding principal
amount of such Equipment Note;





                                      9
<PAGE>   14
provided, that the Owner Trustee may only prepay such Equipment Note in
accordance with the provisions of Section 2.10, 3.02 and 3.03 hereof.

                 Section 2.06.  Termination of Interest in Indenture Estate.  A
holder shall have no further interest in, or other right with respect to, the
Indenture Estate when and if the principal amount of and interest on all
Equipment Notes held by such holder and all other sums payable to such holder
hereunder and under such Equipment Notes and under the Participation Agreement
shall have been paid in full.

                 Section 2.07.  Transfer of Equipment Notes.  The Indenture
Trustee shall maintain at its corporate trust administration office in Chicago,
Illinois or in the city in which the corporate trust office of a successor
Indenture Trustee is located, a register for the purpose of registering
transfers and exchanges of Equipment Notes.  A holder of an Equipment Note
intending to transfer such Equipment Note to a new payee, or to exchange any
Equipment Note or Equipment Notes held by it for an Equipment Note or Equipment
Notes of a different denomination or denominations, may surrender such
Equipment Note or Equipment Notes to the Indenture Trustee at such principal
corporate trust administration office of the Indenture Trustee, together with a
written request from such holder for the issuance of a new Equipment Note or
Equipment Notes, specifying the denomination or denominations (each of which
shall be not less than $1,000,000 or a whole multiple thereof or such smaller
denomination as may be necessary due to the original issuance of Equipment
Notes of the applicable maturity in an aggregate principal amount not evenly
divisible by $1,000,000) of the same, and, in the case of a surrender for
registration of transfer, the name and address of the transferee or
transferees.  Promptly upon receipt of such documents, the Owner Trustee will
issue, and the Indenture Trustee will authenticate, a new Equipment Note or
Equipment Notes in the same aggregate principal amount and dated the same date
or dates as, with the same payment schedule, in the form set forth in Section
2.01 in the same maturity and bearing the same interest rate as the Equipment
Note or Equipment Notes surrendered, in such denomination or denominations and
payable to such payee or payees as shall be specified in the written request
from such holder.  All Equipment Notes issued upon any registration of transfer
or exchange of Equipment Notes shall be the valid obligations of the Owner
Trustee evidencing the same respective obligations, and entitled to the same
security and benefits under this Indenture, as the Equipment Notes surrendered
upon such registration of transfer or exchange.  The Indenture Trustee shall
make a notation on each new Equipment Note or Equipment Notes of the amount of
all payments or prepayments of principal and interest previously made on the
old Equipment Note or Equipment Notes with respect to which such new Equipment
Note or Equipment Notes is or are issued.  From time to time, the Indenture
Trustee will provide the Owner Trustee and the Lessee with such information as
it may request as to the registered holders of Equipment Notes.  The Owner
Trustee shall not be required to exchange any surrendered Equipment Notes as
above provided during the 10-day period preceding the due date of any payment
on such Equipment Notes.

                 Prior to the due presentment for registration of transfer of
an Equipment Note, the Owner Trustee and the Indenture Trustee may deem and
treat the registered holder of such





                                      10
<PAGE>   15
Equipment Note as the absolute owner and holder of such Equipment Note for the
purpose of receiving payment of all amounts payable with respect to such
Equipment Note and for all other purposes and shall not be affected by any
notice to the contrary.

                 The Indenture Trustee will promptly notify the Owner Trustee
and the Lessee of each request for a registration of transfer of an Equipment
Note.  The Indenture Trustee will promptly cancel and destroy all Equipment
Notes surrendered for transfer or exchange pursuant to this Section.

                 Section 2.08.  Mutilated, Destroyed, Lost or Stolen Equipment
Notes.  If any Equipment Note shall become mutilated, destroyed, lost or
stolen, the Owner Trustee shall, upon the written request of the holder of such
Equipment Note, issue, and the Indenture Trustee shall authenticate and deliver
in replacement thereof, a new Equipment Note in the form set forth in Section
2.01, payable to the same holder in the same principal amount, of the same
maturity, with the same payment schedule, bearing the same interest rate and
dated the same date as the Equipment Note so mutilated, destroyed, lost or
stolen.  The Indenture Trustee shall make a notation on each new Equipment Note
of the amount of all payments or prepayments of principal and interest
theretofore made on the Equipment Note so mutilated, destroyed, lost or stolen
and the date to which interest on such old Equipment Note has been paid.  If
the Equipment Note being replaced has become mutilated, such Equipment Note
shall be surrendered to the Indenture Trustee and forwarded to the Owner
Trustee by the Indenture Trustee.  If the Equipment Note being replaced has
been destroyed, lost or stolen, the holder of such Equipment Note shall furnish
to the Owner Trustee and the Indenture Trustee such security or indemnity as
may be required by them to save the Owner Trustee and the Indenture Trustee
harmless and evidence satisfactory to the Owner Trustee and the Indenture
Trustee of the destruction, loss or theft of such Equipment Note and of the
ownership thereof.

                 Section 2.09.  Payment of Transfer Taxes.  Upon the transfer
of any Equipment Note or Equipment Notes pursuant to Section 2.07, the Owner
Trustee or the Indenture Trustee may require from the party requesting such new
Equipment Note or Equipment Notes payment of a sum to reimburse the Owner
Trustee or the Indenture Trustee for, or to provide funds for the payment of,
any tax or other governmental charge in connection therewith.

                 Section 2.10.  Prepayments.  (a) Each Equipment Note shall be
prepaid in whole or in part by the Owner Trustee on a Rent Payment Date (or, in
the circumstance provided in the last sentence of Section 10.3 of the Lease, on
a Determination Date) upon at least 25 days' prior notice from the Owner
Trustee (or the Lessee on its behalf) to the Indenture Trustee in the event
that the Lease as applicable to any Unit or Units related to such Equipment
Note is terminated pursuant to Section 10 thereof, at a price equal to the sum
of (i) as to principal thereof, an amount equal to the product obtained by
multiplying the unpaid principal amount of such Equipment Note as at the date
of such prepayment (after deducting therefrom the principal installment, if
any, due on or prior to the date of such prepayment) by a fraction, the
numerator of which shall be the Equipment Cost of such Unit or Units and the
denominator of which shall





                                      11
<PAGE>   16
be the aggregate Equipment Cost of all Units included in the Indenture Estate
under the related Indenture Supplement immediately prior to the date of such
prepayment, (ii) as to interest, the aggregate amount of interest accrued and
unpaid in respect of the principal amount to be prepaid pursuant to clause (i)
above on the date of such payment (after giving effect to the application of
any Basic Rent paid on or prior to the date of such prepayment) and (iii) if
prepaid prior to the Premium Termination Date, a premium in an amount equal to
the Make-Whole Amount, if any, applicable in respect of the principal amount to
be prepaid pursuant to clause (i) above on the date of such prepayment.

                 (b)      Each Equipment Note shall be prepaid in whole or in
part by the Owner Trustee on a Rent Payment Date upon at least 25 days' prior
notice from the Owner Trustee (or the Lessee on its behalf) to the Indenture
Trustee in connection with the occurrence of an Event of Loss or the deemed
occurrence of an Event of Loss pursuant to Section 9.1 of the Lease with
respect to any Unit or Units related to such Equipment Note if such Unit or
Units are not replaced pursuant to Section 11.2(i) of the Lease, or in the
event Lessee shall be required to settle for 15 or more Units on a
Determination Date pursuant to Section 11.2 of the Lease, such prepayment shall
be made on such Determination Date, at a price equal to the sum of (i) as to
principal thereof, an amount equal to the product obtained by multiplying the
aggregate unpaid principal amount of such Equipment Note as at such prepayment
date (after deducting therefrom the principal installment, if any, due on such
date) by a fraction, the numerator of which shall be the Equipment Cost of such
Unit or Units and the denominator of which shall be the aggregate Equipment
Cost of all Units included in the Indenture Estate under the related Indenture
Supplement immediately prior to such date, and (ii) as to interest, the
aggregate amount of interest accrued and unpaid in respect of the principal
amount to be prepaid pursuant to clause (i) above to but not including the date
of prepayment after giving effect to the application of any Basic Rent paid on
or prior to the date of such prepayment, but without the payment of any
Make-Whole Amount or other premium.

                 (c)      Unless Lessee shall have elected pursuant to Section
6.9 of the Participation Agreement or Section 22.1 of the Lease to assume all
of the rights and obligations of the Owner Trustee under this Indenture in
respect of the Equipment Notes, each Equipment Note shall be prepaid in whole
or in part by the Owner Trustee on the Determination Date specified by Lessee
to Owner Trustee and Indenture Trustee in accordance with Section 6.9 of the
Participation Agreement or Section 22.1 of the Lease, as the case may be, in
the event that Lessee exercises the purchase option under Section 6.9 of the
Participation Agreement or Section 22.1 of the Lease, as the case may be, with
respect to any Unit or Units related to such Equipment Note, at a price equal
to the sum of (i) as to principal thereof, an amount equal to the product
obtained by multiplying the aggregate unpaid principal amount of such Equipment
Note as at the date of any prepayment under Section 6.9 of the Participation
Agreement or Section 22.1 of the Lease, as the case may be (after deducting
therefrom the principal installment, if any, due on the prepayment date) by a
fraction, the numerator of which shall be the Equipment Cost of such Unit or
Units to be purchased and the denominator of which shall be the aggregate
Equipment Cost of all Units included in the Indenture Estate under the related
Indenture Supplement immediately





                                      12
<PAGE>   17
prior to the date of such prepayment, (ii) as to interest, the aggregate amount
of interest accrued and unpaid in respect of the principal amount to be prepaid
pursuant to clause (i) above on the date of such prepayment after giving effect
to the application of any Basic Rent paid on or prior to the date of such
prepayment, and (iii) if prepaid prior to the Premium Termination Date
applicable to such Equipment Notes, a premium in an amount equal to the
aggregate Make-Whole Amount, if any, applicable in respect of the principal
amount to be prepaid pursuant to clause (i) above on the date of such payment.

                 (d)      On the Refunding Date specified by the Lessee to the
Indenture Trustee in accordance with Section 10.2(f) of the Participation
Agreement, all Equipment Notes shall be prepaid in whole but not in part on
such Refunding Date, in the event of a refunding or refinancing pursuant to
Section 10.2 of the Participation Agreement, at a price in addition to any
other amounts due to the holders of the Equipment Notes under this Indenture
equal to the unpaid principal amount thereof together with accrued but unpaid
interest thereon, plus, if prepaid prior to the Premium Termination Date, a
premium in an amount equal to the Make-Whole Amount, if any.

                 (e)      The Indenture Trustee shall give prompt notice of any
prepayment of any of the Equipment Notes to all holders of the Equipment Notes
as soon as the Indenture Trustee shall have knowledge that such prepayment is
expected to occur, which notice shall specify the Equipment Note or Notes to be
prepaid, the principal amount of such Equipment Note or Notes to be prepaid and
the expected date of prepayment which date shall be not less than 25 days after
the date of such notice.

                 Section 2.11.  Equally and Ratably Secured.  All Equipment
Notes at any time outstanding under this Indenture shall be equally and ratably
secured hereby without preference, priority or distinction on account of the
date or dates or the actual time or times of the issue or maturity of such
Equipment Notes so that all Equipment Notes at any time issued and outstanding
hereunder shall have the same rights, Liens and preferences under and by virtue
of this Indenture.

                                  ARTICLE III.
                RECEIPT, DISTRIBUTION AND APPLICATION OF INCOME
                    FROM THE INDENTURE ESTATE; ASSUMPTION OF
                   OBLIGATIONS OF OWNER TRUSTEE BY THE LESSEE

                 Section 3.01.  Basic Rent Distribution.  Except as otherwise
provided in Section 3.03 or 3.05, each installment of Basic Rent, as well as
any installment of interest on overdue installments of Basic Rent and any other
moneys paid over by the Lessee or the Owner Trustee to the Indenture Trustee
for such purpose, shall be distributed by the Indenture Trustee as promptly as
possible (it being understood that any payments of Basic Rent received by the
Indenture Trustee on a timely basis and in accordance with the provisions of
Section 3.6 of the Lease shall be distributed on the date received in the funds
so received) in the following order of priority:  first, so much of such
installment as shall be required for the purpose shall be





                                      13
<PAGE>   18
distributed and paid to the holders of the Equipment Notes to pay in full the
aggregate amount of the payment or payments of principal, premium, if any, and
interest (as well as any interest on overdue principal or interest) then due,
such distribution to be made ratably, without priority of one over the other,
in the proportion that the amount of such payment or payments then due with
respect to each such Equipment Note bears to the aggregate amount of payments
then due under all such Equipment Notes; and second, the balance, if any, of
such installment remaining thereafter shall be distributed to the Owner Trustee
for distribution in accordance with the terms of the Trust Agreement.  The
portion of each such installment distributed to a holder of an Equipment Note
shall be applied by such holder in payment of such Equipment Note in accordance
with the terms of Section 2.05.

                 Section 3.02.  Payments in the Event of Prepayment.  (a)
Except as otherwise provided in Section 3.03 or 3.05, in the event of any
prepayment of an Equipment Note or Notes, in whole or in part, in accordance
with the provisions of Section 2.10 any amount received shall in each case be
distributed and paid in the following order of priority:  first, so much of
such amount as shall be required for the purpose of prepayment shall be
distributed and paid to the holders of such Equipment Note or Notes to pay the
aggregate amount of the payment of principal, premium, if any, and interest to
be prepaid on such Equipment Note or Notes pursuant to Section 2.10, such
prepayment to be made ratably to such Equipment Note or Notes to which such
prepayment relates, without priority of one over any other, in the proportion
that the amount to be prepaid on each such Equipment Note bears to the
aggregate amount to be paid on all such Equipment Notes; and second, the
balance, if any, of such amount remaining thereafter shall be distributed to
the Owner Trustee for distribution in accordance with the terms of the Trust
Agreement.

                 (b)      Except as otherwise provided in Section 3.03 or 3.05
hereof, any amounts received directly or through the Lessee from any
governmental authority or other party pursuant to Section 11 of the Lease with
respect to any Unit as the result of an Event of Loss, to the extent that such
amounts are not at the time required to be paid to the Lessee pursuant to said
Section 11, and any amounts of insurance proceeds for damage to the Indenture
Estate received directly or though the Lessee from any insurer pursuant to
Section 12 of the Lease with respect thereto as the result of an Event of Loss,
to the extent such amounts are not at the time required to be paid to the
Lessee pursuant to said Section 12, shall be applied as provided in clause (a)
of this Section 3.02.

                 Section 3.03.  Payments after Indenture Event of Default.  (a)
Except as provided in Section 3.05, all payments received and amounts realized
by the Indenture Trustee after an Indenture Event of Default shall have
occurred and be continuing and after the Indenture Trustee has declared (as
assignee from the Owner Trustee of the Lease) the Lease to be in default
pursuant to Section 15 thereof or has declared the Equipment Notes to be
accelerated pursuant to Section 4.02, as the case may be, or has elected to
foreclose or otherwise exercise any remedies under this Indenture (including
any amounts realized by the Indenture Trustee from the exercise of any remedies
pursuant to Section 15 of the Lease, or Article IV), as well as all





                                      14
<PAGE>   19
payments or amounts then held or thereafter received by the Indenture Trustee
as part of the Indenture Estate while such Indenture Event of Default shall be
continuing, shall be distributed forthwith by the Indenture Trustee in the
following order of priority:

                          First, so much of such payments or amounts as shall
         be required to reimburse the Indenture Trustee for any fees which are
         due and payable for its services under this Indenture and any tax,
         expense (including reasonable attorney's fees) or other loss incurred
         by the Indenture Trustee (to the extent reimbursable and not
         previously reimbursed and to the extent incurred in connection with
         its duties as Indenture Trustee) shall be distributed to the Indenture
         Trustee;

                          Second, so much of such payments or amounts as shall
         be required to reimburse the holders of the Equipment Notes for
         payments made by them to the Indenture Trustee pursuant to Section
         5.03 (to the extent not previously reimbursed), and to pay such
         holders of the Equipment Notes the amounts payable to them pursuant to
         the provisions of the Participation Agreement, shall be distributed to
         such holders of the Equipment Notes, without priority of one over the
         other, in accordance with the amount of the payment or payments made
         by, or payable to, each such holder;

                          Third, so much of such payments or amounts remaining
         as shall be required to pay the principal of, and premium, if any, to
         the extent received from the Lessee as Supplemental Rent, and accrued
         interest (to the date of distribution) on all Equipment Notes, payable
         to the Loan Participant, then due and payable, whether by declaration
         of acceleration pursuant to Section 4.02 or otherwise, and in case the
         aggregate amount so to be distributed shall be insufficient to pay in
         full the aforesaid amounts, then, ratably, without priority of one
         over the other, in the proportion that the aggregate unpaid principal
         amount of all Equipment Notes held by each such holder, plus the
         accrued but unpaid interest thereon to the date of distribution, bears
         to the aggregate unpaid principal amount of all Equipment Notes, plus
         the accrued but unpaid interest thereon to the date of distribution;
         and

                          Fourth, the balance, if any, of such payments or
         amounts remaining thereafter shall be distributed to the Owner Trustee
         for distribution in accordance with the terms of the Trust Agreement.

                 (b)      Except as provided in Sections 3.03(a) and 3.05, if
an Indenture Default or Indenture Event of Default shall have occurred and be
continuing, the Indenture Trustee shall not make any distribution to the Owner
Trustee but shall hold amounts otherwise distributable to the Owner Trustee as
collateral security for the obligations secured hereby and invested as provided
in Section 6.04(b) until the earliest to occur of (a) the date on which such
Indenture Default or Indenture Event of Default shall have been cured or
waived, and (b) such acceleration occurs and such amounts are applied pursuant
to Section 3.03(a); provided, that if any amounts are held pursuant to this
Section 3.03(b) for a period of 180 days during which time the





                                      15
<PAGE>   20
Equipment Notes could, but shall not have been, accelerated, then (x) all
amounts then held by the Indenture Trustee under this Section 3.03(b) with
respect to such Indenture Default or Indenture Event of Default which have been
so held for at least 90 days shall on the 181st day be distributed to the Owner
Trustee for distribution in accordance with the terms of the Trust Agreement
and (y) any such amounts which are being held pursuant to this Section 3.03(b)
with respect to such Indenture Default or Indenture Event of Default but which
have not been held for at least 90 days shall, on the 91st day following the
date on which such amount was initially received by the Indenture Trustee,
thereafter be distributed to the Owner Trustee for distribution in accordance
with the terms of the Trust Agreement.

                 Section 3.04.  Other Payments.  Except as otherwise provided
in Section 3.03 or 3.05, (a) any payments received by the Indenture Trustee for
which no provision as to the application thereof is made in the Lease or the
Participation Agreement or elsewhere in this Article III, and (b) all payments
received and amounts realized by the Indenture Trustee under the Lease or
otherwise with respect to the Equipment to the extent received or realized at
any time after payment in full of the principal of and interest and premium, if
any, on all Equipment Notes, as well as any other amounts remaining as part of
the Indenture Estate after payment in full of the principal of and interest and
premium, if any, shall be distributed forthwith by the Indenture Trustee in the
order of priority set forth in Section 3.03(a), except that in the case of any
payment described in clause (b) above, such payment shall be distributed
omitting clause "third" of such Section 3.03(a) on all Equipment Notes issued
hereunder.

                 Any payments received by the Indenture Trustee for which
provision as to the application thereof is made in the Lease or the
Participation Agreement but not elsewhere in this Indenture shall be applied to
the purposes for which such payments were made in accordance with the
provisions of the Lease or the Participation Agreement, as the case may be.

                 Section 3.05.  Distribution of Excepted Property.  All amounts
constituting Excepted Property received by the Indenture Trustee shall be paid
promptly by the Indenture Trustee to the Person or Persons entitled thereto.

                 Section 3.06.  Assumption of Obligations of Owner Trustee by
the Lessee.  In the event that the Lessee shall have elected to assume all of
the rights and obligations of the Owner Trustee under this Indenture in respect
of the Equipment Notes on a full recourse basis in connection with the purchase
by the Lessee of Units pursuant to Section 6.9 of the Participation Agreement
or Section 22.1 of the Lease and, if on or prior to the applicable purchase
date:

                 (a)      The Lessee shall have delivered to the Indenture
         Trustee and the Owner Trustee a certificate, dated the date of such
         purchase, of a Responsible Officer of the Lessee stating that the
         Lessee has paid to the Owner Trustee all amounts required to be paid
         to the Owner Trustee pursuant to Section 3.3 of the Lease in
         connection with such purchase and assumption;





                                      16
<PAGE>   21
                 (b)      no Indenture Default shall have occurred and be
         continuing immediately subsequent to such purchase or assumption after
         giving effect to the indenture supplement referred to below and the
         Indenture Trustee and the Owner Trustee shall have received a
         certificate, dated the date of such purchase, of a Responsible Officer
         of the Lessee to such effect;

                 (c)      the Indenture Trustee shall have received, on or
         prior to the date of such purchase, evidence of all filings,
         recordings and other action referred to in the Opinion or Opinions of
         Counsel referred to below;

                 (d)      the Indenture Trustee and the Owner Trustee shall
         have received an Opinion or Opinions of Counsel for the Lessee, dated
         the date of such purchase which without unusual qualification and
         permitting reliance on proposed Treasury Regulations shall be to the
         effect that, after giving effect to the indenture supplement referred
         to below:

                          (i)     this Indenture, the indenture supplement
                 referred to below and the Equipment Notes issued thereunder
                 each constitutes the legal, valid and binding obligation of
                 the Lessee, enforceable against the Lessee in accordance with
                 their respective terms, except as the same may be limited by
                 applicable bankruptcy, insolvency, reorganization, moratorium
                 or similar laws affecting the rights of creditors generally
                 and by general principles of equity, and except as limited by
                 applicable laws which may affect the remedies provided for in
                 this Indenture, which laws, however, do not in the opinion of
                 such counsel make the remedies provided for in this Agreement
                 inadequate for the practical realization of the rights and
                 benefits provided for in this Indenture;

                          (ii)    all filings and recordings and other action
                 necessary or appropriate to protect the interests of the
                 Indenture Trustee in the Units to be so purchased by the
                 Lessee have been accomplished;

                          (iii) no holder of Equipment Notes will be required
                 to recognize gain or loss for tax purposes in connection with
                 such assumption; and

                          (iv)  covering such other matters as the Indenture
                 Trustee shall reasonably request that are customary for
                 transactions of this type; and

                 (e)      upon delivery of an indenture supplement giving
         effect to such assumption reasonably satisfactory to the Indenture
         Trustee and execution and delivery of Equipment Notes reflecting such
         assumption, each dated the date of such purchase;

then, automatically and without the requirement of further action by any
Person, effective as of the date of such purchase, the Owner Trustee shall be
released from all of its obligations under





                                      17
<PAGE>   22
the Equipment Notes and under this Indenture in respect of the Equipment Notes
or otherwise (other than any obligations or liabilities of the Owner Trustee in
its individual capacity incurred on or prior to the date of such purchase or
arising out of or based upon events occurring on or prior to the date of such
purchase, which obligations and liabilities shall remain the sole
responsibility of the Owner Trustee) and the Lien of this Indenture upon the
sale proceeds paid or payable to the Owner Trustee shall be discharged.  If
requested by the Owner Trustee, the Indenture Trustee shall execute and deliver
an instrument, in form and substance satisfactory to the Owner Trustee,
confirming such release and discharge.  In the event that the affected Owner
Participant under Section 6.9 of the Participation Agreement holds less than
100% of the Beneficial Interest and the Lessee is therefore purchasing less
than all the Units pursuant to said Section 6.9 or the Lessee elects to
purchase less than all of the Units pursuant to Section 22.1 of the Lease, as
the case may be, the assumption by the Lessee of the rights and obligations of
the Owner Trustee under this Indenture in respect of that portion of the
indebtedness evidenced by the Equipment Notes which relates to such purchased
Units shall be made on the same terms and conditions as are described in
clauses (a) through (e) above except that (x) the opinion under clause (d)
above shall be appropriately modified to reflect such partial assumption of
indebtedness, and (y) the indenture supplement shall provide for a wholly new
and separate indenture between the Lessee and the Indenture Trustee for that
portion of such indebtedness evidenced by the Equipment Notes which is to be
assumed by the Lessee and secured by the Units to be purchased; and this
Indenture shall thereafter relate only to that portion of the indebtedness
evidenced by the Equipment Notes remaining outstanding under this Indenture
after such assumption.

                                  ARTICLE IV.
              REMEDIES OF THE INDENTURE TRUSTEE UPON AN INDENTURE
                                EVENT OF DEFAULT

                 Section 4.01.  Indenture Events of Default.  The following
events shall constitute "Indenture Events of Default" and each such Indenture
Event of Default shall be deemed to exist and continue so long as, but only so
long as, it shall not have been remedied:

                          (a)     subject to Section 4.04(a), a Lease Event of
         Default (other than a Lease Event of Default by reason of a default by
         the Lessee to pay any amounts which are part of the Excepted
         Property); or

                          (b)     default by the Owner Trustee in making any
         payment when due of principal of, premium, if any, or interest on, any
         Equipment Note or Equipment Notes, and the continuance of such default
         unremedied for 10 Business Days after the same shall have become due
         and payable; or

                          (c)     any failure by the Owner Trustee or the Owner
         Participant to observe or perform any covenant or obligation of them
         or any of them, in this Indenture or the Equipment Notes (other than
         as set forth in clause (b) above) or in the Participation





                                      18
<PAGE>   23
         Agreement, if such failure is not remedied within a period of 30 days
         after there has been given to the Owner Trustee, the Owner Participant
         and the Lessee by the Indenture Trustee or by any holder of an
         Equipment Note a written notice specifying such failure and requiring
         it to be remedied; or

                          (d)     any representation or warranty made by the
         Owner Trustee or the Owner Participant under the Participation
         Agreement, or by the Owner Trustee hereunder, or by any representative
         of the Owner Trustee or the Owner Participant in any document or
         certificate furnished to the Indenture Trustee or the Loan Participant
         in connection herewith or therewith or pursuant hereto or thereto,
         shall prove at any time to have been incorrect in any material respect
         as of the date made and such incorrectness shall remain material and
         continue unremedied for a period of 30 days after there has been given
         to the Owner Trustee and the Owner Participant a written notice
         specifying such incorrectness, stating that such incorrectness is a
         default hereunder and requiring it to be remedied by the Indenture
         Trustee or by any holder of an Equipment Note; or

                          (e)     the Owner Trustee (as Owner Trustee and not
         in its individual capacity) or the Owner Participant shall consent to
         the appointment of a custodian, receiver, trustee or liquidator of
         itself or of a substantial part of its property or shall make a
         general assignment for the benefit of creditors; or

                          (f)     the Owner Trustee (as Owner Trustee and not
         in its individual capacity) or the Owner Participant shall file, or
         consent by answer or otherwise to the filing against it of, a petition
         for relief or reorganization or arrangement or any other petition in
         bankruptcy, for liquidation or to take advantage of any bankruptcy or
         insolvency law of any jurisdiction; or

                          (g)     an order, judgment or decree shall be entered
         by any court of competent jurisdiction appointing, without the consent
         of the Owner Trustee (as Owner Trustee and not in its individual
         capacity) or the Owner Participant, a receiver, trustee or liquidator
         of the Indenture Estate, the Owner Trustee (as Owner Trustee and not
         in its individual capacity) or the Owner Participant, or of any
         substantial part of its property, or granting any order for relief in
         respect of the Owner Trustee (as Owner Trustee and not in its
         individual capacity) or the Owner Participant under the Federal
         bankruptcy laws, and any such order, judgment or decree of appointment
         shall remain in force undismissed, unstayed or unvacated for a period
         of 60 days after the date of entry thereof; or

                          (h)     a petition against the Owner Trustee (as
         Owner Trustee and not in its individual capacity) or the Owner
         Participant, in a proceeding under the Federal bankruptcy laws or
         other insolvency law, as now or hereafter in effect, shall be filed
         and shall not be withdrawn or dismissed within 60 days thereafter, or
         if, under the provisions of any law providing for reorganization or
         winding-up of corporations which may apply to the Owner Trustee (as
         Owner Trustee and not in its individual capacity) or the Owner





                                      19
<PAGE>   24
         Participant, any court of competent jurisdiction shall assume
         jurisdiction, custody or control of the Indenture Estate, the Owner
         Trustee (as Owner Trustee and not in its individual capacity) or the
         Owner Participant or of any substantial part of its property and such
         jurisdiction, custody or control shall remain in force unrelinquished,
         unstayed or unterminated for a period of 60 days.

Notwithstanding any provision herein to the contrary, if an Indenture Event of
Default described in clause (e), (f), (g) or (h) of this Section 4.01 results
solely from the bankruptcy, reorganization, compromise, arrangement,
insolvency, readjustment of debt, dissolution or liquidation of Owner Trustee
solely in its individual capacity, and can be cured by the appointment of a
substitute Owner Trustee without adversely affecting the rights of the
Indenture Trustee hereunder, then Indenture Trustee shall refrain from the
exercise of any of the rights, powers or remedies pursuant to this Article IV
for a period of 45 days provided Owner Participant is diligently seeking to,
and does replace the bank or trust company then serving as Owner Trustee which
replacement shall be deemed to cure such Indenture Event of Default.

                 Section 4.02.  Acceleration; Rescission and Annulment.  If an
Indenture Event of Default occurs and is continuing, the Indenture Trustee may,
and upon the directions of a Majority in Interest shall, subject to Section
4.04, declare the unpaid principal amount of all Equipment Notes then
outstanding and accrued interest thereon to be due and payable, it being agreed
that no Make-Whole Amount or other premium should be payable in such event.  At
any time after the Indenture Trustee has declared the unpaid principal amount
of all Equipment Notes then outstanding to be due and payable and prior to the
sale of any of the Indenture Estate pursuant to this Article IV, a Majority in
Interest, by written notice to the Owner Trustee, the Lessee and the Indenture
Trustee, may rescind and annul such declaration and thereby annul its
consequences if:  (i) there has been paid to or deposited with the Indenture
Trustee an amount sufficient to pay all overdue installments of interest on the
Equipment Notes, and the principal on any Equipment Notes that has become due
otherwise than by such declaration of acceleration, (ii) the rescission would
not conflict with any judgment or decree, and (iii) all other Indenture
Defaults and Indenture Events of Default, other than nonpayment of principal or
interest on the Equipment Notes that have become due solely because of such
acceleration, have been cured or waived.

                 Section 4.03.  Remedies with Respect to Indenture Estate.  (a)
After an Indenture Event of Default shall have occurred and so long as such
Indenture Event of Default shall be continuing, then and in every such case the
Indenture Trustee, as assignee hereunder of the Lease or as mortgagee hereunder
of the Equipment or otherwise, may, and when required pursuant to the
provisions of Article V hereof shall, subject to Sections 4.04 and 4.05,
exercise any or all of the rights and powers and pursue any and all of the
remedies pursuant to Section 15 of the Lease and this Article IV and may
recover judgment in its own name as Indenture Trustee against the Indenture
Estate and may take possession of all or any part of the Indenture Estate, and
may exclude the Owner Trustee and the Owner Participant and all persons
claiming under any of them wholly or partly therefrom; provided, however, that
nothing in this Indenture shall permit or





                                      20
<PAGE>   25
require the Indenture Trustee to take any action contrary to, or to disturb,
the Lessee's rights under the Lease, except in accordance with the provisions
of the Lease.

                 (b)      Subject to Section 4.04 and Section 4.05, the
Indenture Trustee may, if at the time such action may be lawful and always
subject to compliance with any mandatory legal requirements, either with or
without taking possession, and either before or after taking possession, and
without instituting any legal proceedings whatsoever, and having first given
notice of such sale by registered mail to the Owner Trustee, the Owner
Participant and the Lessee once at least 20 days prior to the date of such sale
or the date on which the Indenture Trustee enters into a binding contract for a
private sale, and any other notice which may be required by law, sell and
dispose of the Indenture Estate, or any part thereof, or interest therein, at
public auction to the highest bidder or at private sale in one lot as an
entirety or in separate lots, and either for cash or on credit and on such
terms as the Indenture Trustee may determine, and at any place (whether or not
it be the location of the Indenture Estate or any part thereof) and time
designated in the notice above referred to; provided, however, that,
notwithstanding any provision herein to the contrary, the Indenture Trustee
shall not sell any of the Indenture Estate or exercise any other remedies which
would result in the exclusion of the Owner Trustee from the Indenture Estate or
any part thereof unless a declaration of acceleration has been made pursuant to
Section 4.02; provided further, that, in the event the circumstances
contemplated by Section 4.04(c) exist, the Indenture Trustee shall not be
allowed to deliver the notice required by this Section 4.03(b) (x) until the
earlier of (1) such time as such circumstances no longer exist or (2) the
expiration of the 90 day period set forth in Section 4.04(c) or (y) if the
circumstances contemplated by the second proviso of Section 4.04(c) then exist.
Any such public sale or sales may be adjourned from time to time by
announcement at the time and place appointed for such sale or sales, or for any
such adjourned sale or sales, without further notice, and the Indenture Trustee
or the holder or holders of any Equipment Notes, or any interest therein, may
bid and become the purchaser at any such public sale.  The Indenture Trustee
may exercise such right without possession or production of the Equipment Notes
or proof of ownership thereof, and as representative of the holders may
exercise such right without including the holders as parties to any suit or
proceeding relating to foreclosure of any property in the Indenture Estate.
The Owner Trustee hereby irrevocably constitutes the Indenture Trustee the true
and lawful attorney-in-fact of the Owner Trustee (in the name of the Owner
Trustee or otherwise) for the purpose of effectuating any sale, assignment,
transfer or delivery for enforcement of the Lien of this Indenture, whether
pursuant to foreclosure or power of sale or otherwise, to execute and deliver
all such bills of sale, assignments and other instruments as the Indenture
Trustee may consider necessary or appropriate, with full power of substitution,
the Owner Trustee hereby ratifying and confirming all that such attorney or any
substitute shall lawfully do by virtue hereof.  Nevertheless, if so requested
by the Indenture Trustee or any purchaser, the Owner Trustee shall ratify and
confirm any such sale, assignment, transfer or delivery, by executing and
delivering to the Indenture Trustee or such purchaser all bills of sale,
assignments, releases and other proper instruments to effect such ratification
and confirmation as may be designated in any such request.




                                      21
<PAGE>   26
                 (c)      Subject to Section 4.04 and Section 4.05, the Owner
Trustee agrees, to the fullest extent that it lawfully may, that, in case one
or more of the Indenture Events of Default shall have occurred and be
continuing, then, in every such case, the Indenture Trustee may take possession
of all or any part of the Indenture Estate and may exclude the Owner Trustee
and the Owner Participant and all persons claiming under any of them wholly or
partly therefrom.  At the request of the Indenture Trustee, the Owner Trustee
shall promptly execute and deliver to the Indenture Trustee such instruments of
title and other documents as the Indenture Trustee may deem necessary or
advisable to enable the Indenture Trustee or an agent or representative
designated by the Indenture Trustee, at such time or times and place or places
as the Indenture Trustee may specify, to obtain possession of all or any part
of the Indenture Estate.  If the Owner Trustee shall fail for any reason to
execute and deliver such instruments and documents to the Indenture Trustee,
the Indenture Trustee may pursue all or part of the Indenture Estate wherever
it may be found and may enter any of the premises of the Lessee wherever the
Indenture Estate may be or be supposed to be and search for the Indenture
Estate and, subject to Section 4.04 and Section 4.05, take possession of and
remove the Indenture Estate.  Upon every such taking of possession, the
Indenture Trustee may, from time to time, at the expense of the Indenture
Estate, make all such expenditures for maintenance, insurance, repairs,
replacements, alterations, additions and improvements to any of the Indenture
Estate, as it may deem proper.  In each such case, the Indenture Trustee shall
have the right to use, operate, store, control or manage the Indenture Estate,
and to carry on the business and to exercise all rights and powers of the Owner
Trustee relating to the Indenture Estate, as the Indenture Trustee shall deem
best, including the right to enter into any and all such agreements with
respect to the maintenance, operation, leasing or storage of the Indenture
Estate or any part thereof as the Indenture Trustee may determine; and the
Indenture Trustee shall be entitled to collect and receive all tolls, rents,
revenues, issues, income, products and profits of the Indenture Estate and
every part thereof, without prejudice, however, to the right of the Indenture
Trustee under any provision of this Indenture to collect and receive all cash
held by, or required to be deposited with, the Indenture Trustee hereunder.
Such tolls, rents, revenues, issues, income, products and profits shall be
applied to pay the expenses of holding and operating the Indenture Estate and
of conducting the business thereof, and of all maintenance, repairs,
replacements, alterations, additions and improvements, and to make all payments
which the Indenture Trustee may be required or may elect to make, if any, for
taxes, assessments, insurance or other proper charges upon the Indenture Estate
or any part thereof (including the employment of engineers and accountants to
examine, inspect and make reports upon the properties and books and records of
the Indenture Estate), and all other payments which the Indenture Trustee may
be required or authorized to make under any provision of this Indenture, as
well as just and reasonable compensation for the services of the Indenture
Trustee, and of all persons properly engaged and employed by the Indenture
Trustee, including the reasonable expenses of the Indenture Trustee.

                 (d)      If an Indenture Event of Default occurs and is
continuing and the Indenture Trustee shall have obtained possession of a Unit,
the Indenture Trustee shall not be obligated to use or operate such Unit or
cause such Unit to be used or operated directly or indirectly by itself or
through agents or other representatives or to lease, license or otherwise
permit or provide for




                                      22
<PAGE>   27
the use or operation of such Unit or Equipment by any other Person unless (i)
the Indenture Trustee shall have been able to obtain insurance in kinds, at
rates and in amounts satisfactory to it in its discretion to protect the
Indenture Estate and the Indenture Trustee, as trustee and individually,
against any and all liability for loss or damage to such Unit and for public
liability and property damage resulting from use or operation of such Unit and
(ii) funds are available in the Indenture Estate to pay for all such insurance
or, in lieu of such insurance, the Indenture Trustee is furnished with
indemnification from the holders of the Equipment Notes or any other Person
upon terms and in amounts satisfactory to the Indenture Trustee in its
discretion to protect the Indenture Estate and the Indenture Trustee, as
trustee and individually, against any and all such liabilities.

                 (e)      Notwithstanding anything contained herein, so long as
the Pass Through Trustee under any Pass Through Trust Agreement is the
registered holder of any Equipment Note issued hereunder, the Indenture Trustee
is not authorized or empowered to acquire title to any Indenture Estate or take
any action with respect to any Indenture Estate so acquired by it if such
acquisition or action would cause the trust created by the Trust Agreement or
the Pass Through Trust Agreement to fail to qualify as a "grantor trust" for
federal income tax purposes.

                 Section 4.04.  Right to Cure; Option to Purchase; Etc.

                 (a)      Right to Cure.  (A)  If there shall occur a Lease
Event of Default in respect of the payment of Basic Rent pursuant to Section
14(a) of the Lease, then as long as no other Indenture Event of Default (other
than arising from such failure to pay Basic Rent or which is concurrently being
cured pursuant to this Section 4.04(a)) shall have occurred and be continuing
the Owner Participant or the Owner Trustee may (but need not) pay to the
Indenture Trustee, at any time prior to the expiration of a period of 10
Business Days (a "10-Day Period") after receiving written notice of such
default from the Indenture Trustee (prior to the expiration of which 10-Day
Period the Indenture Trustee shall not declare the Lease in default pursuant to
Section 15 thereof or exercise any of the rights, powers or remedies pursuant
to such Section 15 or this Article IV), an amount equal to the full amount of
such payment of Basic Rent, together with any interest due thereon on account
of the delayed payment thereof, and such payment by the Owner Participant or
the Owner Trustee shall be deemed to cure any Indenture Event of Default which
arose from such failure of the Lessee (but such cure shall not relieve the
Lessee of any of its obligations and shall not cure any other Indenture Event
of Default) or (B) if there shall occur a Lease Event of Default in respect of
any other payment of Rent (other than Basic Rent) or a Lease Event of Default
shall have occurred and be continuing, which Lease Event of Default is curable
by the payment of money (it being understood that actions such as the obtaining
of insurance or the procuring of maintenance services can be so effected), then
as long as no other Indenture Event of Default (other than arising from such
Lease Event of Default or which is concurrently being cured pursuant to this
Section 4.04(a)) shall have occurred and be continuing the Owner Participant or
the Owner Trustee may (but need not) pay to the Indenture Trustee, at any time
prior to the expiration of a period of 30 days (a "30-Day Period") after
receiving written notice of such Lease Event of Default from the Indenture
Trustee (prior to the





                                      23
<PAGE>   28
expiration of which 30-Day Period the Indenture Trustee shall not declare the
Lease in default pursuant to Section 15 thereof or exercise any of the rights,
powers or remedies pursuant to such Section 15 or this Article IV), an amount
equal to the full amount of such payment of Rent, together with any interest
due thereon on account of the delayed payment thereof or otherwise make such
payment as shall effect such cure, and such payment by the Owner Participant or
the Owner Trustee shall be deemed to cure any Indenture Event of Default which
arose from such Lease Event of Default (but such cure shall not relieve the
Lessee of any of its obligations); provided however, Owner Participant and
Owner Trustee, collectively, shall not be entitled to (x) cure more than three
consecutive or six total defaults in the payment of Basic Rent, or (y) cure
other Lease Events of Default if the outstanding amount which has been paid by
the Owner Participant or the Owner Trustee and not reimbursed to such parties
by the Lessee pursuant to this clause (y) exceeds in the aggregate $3,000,000.
Upon any cure by the Owner Participant or the Owner Trustee in accordance with
the first sentence of this Section 4.04(a), the Owner Participant or the Owner
Trustee shall, to the extent of their respective payments, be subrogated to the
rights of the Indenture Trustee, as assignee hereunder of the Owner Trustee to
receive such payment of Rent (and any interest due thereon on account of the
delayed payment thereof) or right of reimbursement, and shall be entitled to
receive such payment upon its receipt by the Indenture Trustee as aforesaid
(but in each case only if all amounts of principal and interest at the time due
and payable on the Equipment Notes shall have been paid in full); provided that
neither the Owner Participant nor the Owner Trustee shall attempt to recover
any such amount paid by it on behalf of the Lessee pursuant to this Section
4.04(a) except by demanding of the Lessee payment of such amount or by
prosecuting an action against the Lessee to require the payment of such amount;
provided further, that with respect to any amounts advanced by and owing to the
Owner Trustee and the Owner Participant, the Owner Trustee and the Owner
Participant shall be expressly subordinated to the right of the holders of the
Equipment Notes to receive any and all amounts then due and owing on the
Equipment Notes prior to any payment from the Lessee to the Owner Trustee or
the Owner Participant.

                 (b)      Option to Purchase Equipment Notes.  In the event
that (i) at any time one or more Lease Events of Default shall have occurred
and any such Lease Event of Default shall have continued for a period of 180
days or more during which time the Equipment Notes could, but shall not, have
been accelerated pursuant to Section 4.02, (ii) the Equipment Notes shall have
been accelerated pursuant to Section 4.02 or (iii) the Indenture Trustee, as
assignee hereunder of the Lease, shall have declared the Lease to be in default
and shall have commenced the exercise of any additional remedy in respect of
the Units under the Lease, then and in any such case, upon 30 days' notice
(which notice shall be irrevocable) from the Owner Trustee to the Indenture
Trustee designating a date of purchase (the "Purchase Date") which shall be a
Determination Date, each holder of an Equipment Note will be obligated to, upon
and subject to receipt by the Indenture Trustee from the Owner Trustee or its
nominee of an amount equal to the aggregate unpaid principal amount of all
Equipment Notes, together with accrued interest thereon to the Purchase Date,
plus all other sums then due and payable to such holder of an Equipment Note
hereunder, but without any Make-Whole Amount or other premium, forthwith sell,
assign, transfer and convey to the Owner Trustee or its nominee on the Purchase
Date all of the right,





                                      24
<PAGE>   29
title and interest of such holder in and to the Equipment Notes then held by
such holder, and the Owner Trustee or its nominee shall assume all of such
holder's obligations under the Participation Agreement; provided that the Owner
Trustee or its nominee must purchase all and not less than all of the Equipment
Notes then outstanding.  During such 30-day notice period, the Indenture
Trustee shall not exercise any of the rights, remedies or powers pursuant to
Section 15 of the Lease or this Article IV, so long as the Owner Participant
(or any nominee of the Owner Participant reasonably acceptable to the Indenture
Trustee) has notified the Indenture Trustee that the notice so provided by the
Owner Trustee or its nominee pursuant to this Section 4.04(b) constitutes the
binding obligation of the Owner Trustee or its nominee to purchase the
Equipment Notes.

                 (c)      Restrictions on Certain Actions.  Notwithstanding any
provision of this Indenture to the contrary, the Indenture Trustee shall not
foreclose the Lien of this Indenture or otherwise exercise remedies hereunder
which would result in the exclusion of the Owner Trustee from the Indenture
Estate or any part thereof as a result of an Indenture Event of Default that
constitutes or occurs solely by virtue of one or more Lease Events of Default
(at a time when no other Indenture Event of Default unrelated to any Lease
Event of Default shall have occurred and be continuing) unless the Indenture
Trustee as security assignee of the Owner Trustee has proceeded or is then
currently proceeding, to the extent it is then entitled to do so hereunder and
under the Lease and is not then stayed or otherwise prevented from doing so by
operation of law, to exercise one (or more, as it shall in its good faith
discretion determine) of the comparable remedies provided for in Section 15 of
the Lease with respect to the Equipment, provided that in the event the
Indenture Trustee shall be so stayed or otherwise prevented from exercising
such remedies under the Lease, it shall in any event refrain from so
foreclosing or exercising such other remedies hereunder for a period of not
less than 90 days, and further provided that in the event the Lessee as debtor
in a proceeding under Chapter 11 of the Bankruptcy Code (or any trustee
appointed for the Lessee as debtor in any such bankruptcy case) shall have
assumed the Lease with the approval of the bankruptcy court having jurisdiction
over such case, under Section 365 of the Bankruptcy Code or any amended or
successor version thereof, and no Lease Event of Default other than as
specified in Section 14(g) or Section 14(h) of the Lease has occurred and is
continuing and no Indenture Event of Default unrelated to a Lease Event of
Default occurring solely pursuant to Section 14(g) or 14(h) of the Lease shall
have occurred and be continuing, the Indenture Trustee shall refrain from so
foreclosing or exercising such other remedies hereunder.  Nothing in this
Section 4.04(c) shall prevent the Indenture Trustee from foreclosing or
exercising such other remedies hereunder to the extent the Lessee fails to
comply with any provisions of any order issued in connection with the
assumption of the Lease.

                 Section 4.05.  Rights of Lessee.  Notwithstanding the
provisions of this Indenture, including, without limitation, Section 4.03, so
long as no Lease Event of Default shall have occurred and be continuing,
neither the Indenture Trustee nor the Owner Trustee shall take any action
contrary to, or disturb, the Lessee's rights under the Lease, except in
accordance with the provisions of the Lease, including, without limitation, (i)
the right to receive all monies due and




                                      25
<PAGE>   30
payable to it in accordance with the provisions of the Lease and (ii) the
Lessee's rights to possession and use of, and of quiet enjoyment of, the
Equipment.

                 Section 4.06.  Waiver of Existing Defaults.  A Majority in
Interest by notice to the Indenture Trustee on behalf of all holders of the
Equipment Notes may waive any past default hereunder and its consequences,
except a default:  (i) in the payment of the principal of, premium, if any, or
interest on any Equipment Note, or (ii) in respect of a covenant or provision
hereof which under Article IX hereof cannot be modified or amended without the
consent of the holder of each Equipment Note affected.  Upon any such waiver,
such default shall cease to exist, and any Indenture Event of Default arising
therefrom shall be deemed to have been cured for every purpose of this
Indenture; but no such waiver shall extend to any subsequent or other default
or impair any right consequent thereon.

                                   ARTICLE V.
                        DUTIES OF THE INDENTURE TRUSTEE

                 Section 5.01.  Action upon Indenture Event of Default.  If any
payments of Basic Rent or payments of the principal or interest or premium, if
any, on the Equipment Notes due and payable on any Rent Payment Date shall not
have been paid in full on such Rent Payment Date, the Indenture Trustee shall
give telephonic notice within one Business Day (followed by prompt written
notice) to the Owner Trustee, the Owner Participant, the Loan Participant and
the Lessee specifying the amount and nature of such deficiency in payment.  In
the event the Indenture Trustee shall have knowledge of an Indenture Event of
Default or an Indenture Default, the Indenture Trustee shall give prompt notice
of such Indenture Event of Default or Indenture Default to the Lessee, the
Owner Trustee, the Owner Participant and the Loan Participant by telegram,
facsimile, or telephone (to be promptly confirmed in writing).  In the event
the Owner Trustee shall have knowledge of an Indenture Event of Default or an
Indenture Default, the Owner Trustee shall give notice of such Indenture Event
of Default or Indenture Default in the same manner to the Lessee, the Indenture
Trustee, the Owner Participant and the Loan Participant.  Subject to the terms
of Section 5.03, the Indenture Trustee shall take such action, or refrain from
taking such action, with respect to such Indenture Event of Default or
Indenture Default as the Indenture Trustee shall be instructed in writing by a
Majority in Interest.  If the Indenture Trustee shall not have received
instructions as above provided within 20 days after the mailing of notice of
such Indenture Event of Default or such Indenture Default to the Loan
Participant by the Indenture Trustee, the Indenture Trustee may, but shall not
be obligated to, take such action, or refrain from taking such action, with
respect to such Indenture Event of Default or Indenture Default as it shall
determine to be advisable in the best interests of the Loan Participant.  Any
provision of this Section 5.01 to the contrary notwithstanding, the Indenture
Trustee shall not declare the Lease to be in default solely in respect of the
Lessee's failure to make any payment of Basic Rent within 10 Business Days
after the same shall have become due, unless the 10-Day Period within which,
pursuant to Section 4.04(a), the Owner Participant or the Owner Trustee are
entitled to cure such failure shall have expired.  For all purposes of this
Indenture, in the absence of actual knowledge, neither the Owner Trustee nor
the Indenture




                                      26
<PAGE>   31
Trustee shall be deemed to have knowledge of an Indenture Event of Default
(except, in the case of the Indenture Trustee, the failure of the Lessee to pay
any installment of Basic Rent that is required to be paid directly to the
Indenture Trustee within the 10 Business Days after the same shall become due
or the failure of the Lessee to maintain insurance as required under Section 12
of the Lease if the Indenture Trustee shall receive notice thereof from an
insurer or insurance broker) unless notified in writing by the Lessee, the
Owner Trustee, one or more Loan Participants or the Owner Participant; and
"actual knowledge" (as used in the foregoing clause) of the Owner Trustee or
the Indenture Trustee shall mean actual knowledge of an officer in the
Corporate Trust Administration of the Owner Trustee or the Corporate Trust
Department of the Indenture Trustee, as the case may be.

                 Section 5.02.  Action upon Instructions.  Subject to the terms
of Sections 5.01 and 5.03, upon the written instructions at any time and from
time to time of a Majority in Interest, the Indenture Trustee shall take such
of the following actions as may be specified in such instructions (subject to
the rights of the other parties thereto, except to the extent assigned
hereunder):  (i) subject to and solely to the extent permitted by the terms
hereof and of the Lease, give such notice, direction or consent, or exercise
such right, remedy or power hereunder or under the Lease or in respect of any
part or all of the Indenture Estate or take such other action as shall be
specified in such instructions; and (ii) after an Indenture Event of Default
shall have occurred and so long as such Indenture Event of Default shall be
continuing, approve as satisfactory to it all matters required by the terms of
the Lease to be satisfactory to the Owner Trustee, it being understood that
without the written instructions of a Majority in Interest the Indenture
Trustee shall not take any action described in clauses (i) and (ii) above.

                 Upon the expiration or earlier termination of the Lease Term
with respect to any Unit under the Lease and after payment of the portion of
the principal of, together with interest and premium, if any, on the Equipment
Notes in accordance with the terms of this Indenture, or, if and so long as no
Indenture Event of Default shall have occurred and be continuing, upon the
transfer by the Owner Trustee to the Lessee or its designee of any Unit
pursuant to Section 10 or 11 of the Lease or the retention by the Owner Trustee
of any Unit pursuant to Section 10.3 of the Lease, then the Indenture Trustee
shall in either such case, upon the written request of the Owner Trustee, and
receipt by the Indenture Trustee of funds necessary to prepay the Equipment
Notes required to be prepaid in connection with such purchase, termination,
retention or Event of Loss, execute and deliver to, or as directed in writing
by, the Owner Trustee an appropriate instrument (in due form for recording)
furnished by the Owner Trustee or the Lessee releasing such property from the
Lien of this Indenture.

                 Section 5.03.  Indemnification.  (a)  The Indenture Trustee
shall not be required to take any action or refrain from taking any action
under Section 5.01 (other than the first two sentences thereof) or 5.02 or
Article IV if it shall have reasonable grounds for believing that repayment of
such funds or adequate indemnification against such risk is not reasonably
assured to it.  The Indenture Trustee shall not be required to take any action
under Section 5.01 or 5.02 or Article IV, nor shall any other provision of this
Indenture be deemed to impose a duty on the




                                      27
<PAGE>   32
Indenture Trustee to take any action, if the Indenture Trustee shall have been
advised in writing by independent counsel that such action is contrary to the
terms hereof or of the Lease or the Participation Agreement, or is otherwise
contrary to law.

                 (b)      Each Loan Participant may, but shall not be required
to, participate in any indemnification of the Indenture Trustee given pursuant
to paragraph (a) of this Section 5.03.  Each Loan Participant so participating
shall be entitled to reimbursement for such participation in accordance with
Article III.

                 Section 5.04.  No Duties Except as Specified in Indenture or
Instructions.  The Indenture Trustee shall not have any duty or obligation to
manage, control, use, sell, dispose of or otherwise deal with the Equipment or
any other part of the Indenture Estate, or to otherwise take or refrain from
taking any action under, or in connection with, this Indenture, the Lease, or
the Participation Agreement, except as expressly provided by the terms of this
Indenture or as expressly provided in written instructions received pursuant to
the terms of Section 5.01 or 5.02; and no implied duties or obligations shall
be read into this Indenture against the Indenture Trustee.  Each of the Owner
Trustee (only in its individual capacity) and the Indenture Trustee
nevertheless agrees that it will, at its own cost and expense, promptly take
such action as may be necessary duly to discharge any liens or encumbrances on
any part of the Indenture Estate, or on any properties of the Owner Trustee
assigned, pledged or mortgaged as part of the Indenture Estate, which result
from claims against it in its individual capacity not related to the ownership
of the Equipment (in the case of the Owner Trustee), administration of the
Indenture Estate (in the case of the Indenture Trustee) or any other
transaction under this Indenture or the Trust Agreement or any document
included in the Indenture Estate.

                 Section 5.05.  No Action Except under Lease, Indenture or
Instructions.  The Indenture Trustee agrees that it will not manage, control,
use, sell, dispose of or otherwise deal with the Equipment or other property
constituting part of the Indenture Estate except (i) as required by the terms
of the Lease and the Participation Agreement, (ii) in accordance with the
powers granted to, or the authority conferred upon, the Indenture Trustee
pursuant to this Indenture, or (iii) in accordance with the express terms
hereof or with written instructions pursuant to Section 5.01 or 5.02.

                 Section 5.06.  Disposition of Units.  At any time and from
time to time prior to the expiration of the Lease Term, any Unit for which the
provisions of Section 11.4(a) of the Lease has been satisfied may be disposed
of in accordance with the provisions of Section 11.4(a) of the Lease, and the
Owner Trustee shall, from time to time, direct the Indenture Trustee to,
provided no Lease Event of Default shall have occurred and be continuing,
execute and deliver to it, or as directed in writing by the Owner Trustee, an
appropriate instrument furnished by the Owner Trustee or the Lessee releasing
such Unit from the Lien of the Indenture, but only in respect of such Unit.




                                      28
<PAGE>   33
                 Section 5.07.  Indenture Supplements for Replacements.  In the
event of a Replacement Unit being substituted as contemplated by Section 11.2
of the Lease, the Owner Trustee and the Indenture Trustee agree for the benefit
of the holders of the Equipment Notes and the Lessee, subject to compliance by
the Lessee with its obligations set forth in Section 11 of the Lease, to
execute and deliver an Indenture Supplement substantially in the form of
Exhibit A hereto and, provided no Lease Event of Default or Lease Default shall
have occurred and be continuing, execute and deliver to the Lessee an
appropriate instrument releasing the Unit being replaced from the Lien of the
Indenture.

                 Section 5.08.  Effect of Replacements.  In the event of the
substitution of a Replacement Unit, all provisions of this Indenture relating
to the Unit or Units being replaced shall be applicable to such Replacement
Unit with the same force and effect as if such Replacement Unit was the same
Unit being replaced.

                 Section 5.09.  Withholding Taxes.  The Indenture Trustee, as
agent for the Owner Trustee, shall exclude and withhold from each payment of
principal, premium, if any, and interest and other amounts due hereunder or
under the Equipment Notes any and all withholding taxes applicable thereto as
required by law.  The Indenture Trustee agrees to act as such withholding agent
and, in connection therewith, whenever any present or future taxes or similar
charges are required to be withheld with respect to any amounts payable in
respect of the Equipment Notes, to withhold such amounts and timely pay the
same to the appropriate authority in the name of and on behalf of the holders
of the Equipment Notes, that it will file any necessary withholding tax returns
or statements when due, and that, as promptly as possible after the payment
thereof, it will deliver to each holder of an Equipment Note appropriate
documentation showing the payment thereof, together with such additional
documentary evidence as such holders may reasonably request from time to time.

                 Section 5.10.  Lessee's Right of Quiet Enjoyment.
Notwithstanding any of the provisions of this Indenture to the contrary, so
long as Lessee is in compliance with its obligations under the Lease (including
applicable grace periods) and no Lease Event of Default has occurred and is
continuing unremedied, the Indenture Trustee will comply with Section 8 of the
Participation Agreement to the same extent as if it were the Lessor under the
Lease.  Each holder of an Equipment Note, by its acceptance thereof, consents
in all respects to the terms of the Lease and the Participation Agreement and
agrees to the provisions of this Section 5.10.

                                  ARTICLE VI.
                  THE OWNER TRUSTEE AND THE INDENTURE TRUSTEE

                 Section 6.01.  Acceptance of Trusts and Duties.  The Indenture
Trustee accepts the trusts hereby created and applicable to it and agrees to
perform the same but only upon the terms of this Indenture and agrees to
receive and disburse all moneys received by it constituting part of the
Indenture Estate in accordance with the terms hereof.  The Indenture Trustee
shall not be answerable or accountable under any circumstances, except for its
own willful misconduct or





                                      29
<PAGE>   34
gross negligence (or negligence or willful misconduct in the case of
application or investment of moneys constituting the Indenture Estate) or
breach of any of its representations or warranties or covenants set forth
herein or in the Participation Agreement, or the performance of its obligations
under the last sentence of Section 5.04; and the Owner Trustee shall not be
liable for any action or inaction of the Indenture Trustee and the Indenture
Trustee shall not be liable for any action or inaction of the Owner Trustee.
The Owner Trustee shall not be deemed a trustee for, or agent of, the holders
of the Equipment Notes for any purpose.

                 Section 6.02.  Absence of Duties.  Except in accordance with
written instructions or requests furnished pursuant to Section 5.01 or Section
5.02 and except as provided in, and without limiting the generality of, Section
5.04, the Indenture Trustee shall have no duty (i) to see to any registration
of the Equipment or any recording or filing of the Lease, or of this Indenture
or any other document, or to see to the maintenance of any such registration,
recording or filing, (ii) to see to any insurance on the Equipment or to effect
or maintain any such insurance, whether or not the Lessee shall be in default
with respect thereto, (iii) to confirm, verify or inquire into the failure to
receive any financial statements of the Lessee or (iv) to inspect the Equipment
at any time or ascertain or inquire as to the performance or observance of any
of the Lessee's covenants under the Lease with respect to the Equipment.
Notwithstanding the foregoing, the Indenture Trustee will furnish to any Loan
Participant, so long as such Loan Participant or its nominees shall hold any of
the Equipment Notes, promptly upon receipt thereof, duplicates or copies of all
reports, notices, requests, demands, certificates, financial statements and
other instruments furnished to the Indenture Trustee under this Indenture, to
the extent that the same shall not have been furnished to the Indenture Trustee
and the Loan Participants pursuant to the Lease.

                 Section 6.03.  No Representations or Warranties as to the
Equipment or Documents.  Neither the Owner Trustee nor the Owner Trustee in its
individual capacity nor the Indenture Trustee makes or shall be deemed to have
made (i) any representation or warranty, express or implied, as to the value,
condition, design, operation, merchantability or fitness for use of the
Equipment or as to their title thereto, or any other representation or warranty
with respect to the Equipment whatsoever, or (ii) any representation or
warranty as to the validity, legality or enforceability of this Indenture, the
Trust Agreement, the Participation Agreement, the Equipment Notes, the Lease,
any Lease Supplement, any Indenture Supplement or any other document or
instrument or as to the correctness of any statement contained in any thereof
(except as to the representations and warranties made by the Owner Trustee in
its individual capacity as set forth in Section 3.1 of the Participation
Agreement), except that the Owner Trustee and the Indenture Trustee each in its
individual capacity hereby confirms the representations and warranties made by
it in its individual capacity in Sections 3.1 and 3.3, respectively, of the
Participation Agreement.

                 Section 6.04.  No Segregation of Moneys; No Interest;
Investments.  (a)  Subject to Section 6.04(b), no moneys received by the
Indenture Trustee hereunder need be segregated in any manner except to the
extent required by law, and any such moneys may be deposited




                                      30
<PAGE>   35
under such general conditions for the holding of trust funds as may be
prescribed by law applicable to the Indenture Trustee, and, except as otherwise
agreed by the Owner Trustee or the Indenture Trustee, as the case may be,
neither the Owner Trustee nor the Indenture Trustee shall be liable for any
interest thereon.

                 (b)      Any amounts held by the Indenture Trustee pursuant to
the express terms of this Indenture or the Lease and not required to be
distributed as herein provided shall be invested and reinvested by the
Indenture Trustee from time to time in Specified Investments at the written
direction and at the risk and expense of the Lessee, except that in the absence
of any such direction, such amounts need not be invested and reinvested and
except that after a Lease Event of Default shall have occurred and be
continuing, such amounts shall be so invested and reinvested by the Indenture
Trustee in Indenture Investments.  Any net income or gain realized as a result
of any such investments or reinvestment shall be held as part of the Indenture
Estate and shall be applied by the Indenture Trustee at the same times, on the
same conditions and in the same manner as the amounts in respect of which such
income or gain was realized are required to be distributed in accordance with
the provisions hereof or of the Lease pursuant to which such amounts were
required to be held and if no Lease Event of Default shall have occurred and be
continuing any excess shall be paid to the Lessee.  Any such Specified
Investments or Indenture Investments may be sold or otherwise reduced to cash
(without regard to maturity date) by the Indenture Trustee whenever necessary
to make any application as required by such provisions.  The Indenture Trustee
shall have no liability for any loss resulting from any such investment or
reinvestment other than by reason of the willful misconduct or gross negligence
of the Indenture Trustee.

                 Section 6.05.  Reliance; Agents; Advice of Counsel.  The
Indenture Trustee shall incur no liability to anyone acting upon any signature,
instrument, notice, resolution, request, consent, order, certificate, report,
opinion, bond or other document or paper believed by it to be genuine and
believed by it to be signed by the proper party or parties.  The Indenture
Trustee may accept a copy of a resolution of the Board of Directors of any
party to the Participation Agreement, certified by the Secretary or an
Assistant Secretary of such party as duly adopted and in full force and effect,
as conclusive evidence that such resolution has been duly adopted by said Board
and that the same is in full force and effect.  As to any fact or matter the
manner of ascertainment of which is not specifically described herein, the
Indenture Trustee may for all purposes hereof rely on a certificate, signed by
an officer of the Lessee, as to such fact or matter, and such certificate shall
constitute full protection to the Indenture Trustee for any action taken or
omitted to be taken by it in good faith in reliance thereon.  The Indenture
Trustee shall furnish to the Owner Trustee upon request such information and
copies of such documents as the Indenture Trustee may have and as are necessary
for the Owner Trustee to perform its duties under Article II hereof.  The
Indenture Trustee shall assume, and shall be fully protected in assuming, that
the Owner Trustee is authorized by the Trust Agreement to enter into this
Indenture and to take all action permitted to be taken by it pursuant to the
provisions hereof, and need not inquire into the authorization of the Owner
Trustee with respect thereto.  In the administration of the trusts hereunder,
the Indenture Trustee may execute any of the trusts or





                                      31
<PAGE>   36
powers hereof and perform its powers and duties hereunder directly or through
agents or attorneys and may, at the reasonable expense of the Indenture Estate,
consult with independent counsel, accountants and other skilled persons to be
selected and employed by it, and the Indenture Trustee shall not be liable for
anything done, suffered, or omitted in good faith by it in accordance with the
written advice or opinion of any such independent counsel, accountants or other
skilled persons acting within such persons' area of competence (so long as the
Indenture Trustee shall have exercised reasonable care in selecting such
persons).

                 Section 6.06.  Not Acting in Individual Capacity.  The Owner
Trustee and the Indenture Trustee each acts hereunder solely as trustee
hereunder and, in the case of the Owner Trustee, under the Trust Agreement and
not in its individual capacity unless otherwise expressly provided; and all
Persons, other than the holders of Equipment Notes to the extent expressly
provided in this Indenture, having any claim against the Owner Trustee or the
Indenture Trustee by reason of the transactions contemplated hereby shall,
subject to the Lien and priorities of payment as herein provided, look only to
the Indenture Estate for payment or satisfaction thereof.

                                  ARTICLE VII.
                     CERTAIN LIMITATIONS ON OWNER TRUSTEE'S
                         AND INDENTURE TRUSTEE'S RIGHTS

                 Each of the Owner Trustee and the Indenture Trustee agree that
it shall have no right against the holders of the Equipment Notes or the
Indenture Estate (except in the case of the Indenture Trustee as expressly
provided in Section 4.03 hereof) for any fee as compensation for its services
hereunder or any expenses or disbursements incurred in connection with the
exercise and performance of its powers and duties hereunder or any
indemnification against liability which it may incur in the exercise and
performance of such powers and duties but, on the contrary, shall look solely
to the Lessee for such payment and indemnification and that neither the Owner
Trustee nor the Indenture Trustee shall have any lien on nor security interest
in the Indenture Estate as security for such compensation, expenses, reasonable
counsel fees, if any, disbursements and indemnification.

                                 ARTICLE VIII.
                               SUCCESSOR TRUSTEES

                 Section 8.01.  Notice of Successor Owner Trustee.  In the case
of any appointment of a successor Owner Trustee pursuant to the Trust Agreement
or any merger, conversion, consolidation or sale of substantially all the
business involving the Owner Trustee pursuant to the Trust Agreement, the
successor Owner Trustee shall give prompt written notice thereof to the
Indenture Trustee, the Lessee and the holders of all Equipment Notes at the
time outstanding.

                 Section 8.02.  Resignation of Indenture Trustee; Appointment
of Successor.  The resignation or removal of the Indenture Trustee and the
appointment of a successor Indenture Trustee shall become effective only upon
the successor Indenture Trustee's acceptance of




                                      32
<PAGE>   37
appointment as provided in this Section 8.02.  The Indenture Trustee or any
successor thereto may resign at any time without cause by giving at least 30
days' prior written notice to the Owner Trustee, the Owner Participant, the
Lessee and the holders of the Equipment Notes.  A Majority in Interest may at
any time remove the Indenture Trustee without cause by an instrument in writing
delivered to the Owner Trustee, the Owner Participant, the Lessee and the
Indenture Trustee.  The Owner Trustee may remove the Indenture Trustee if: (1)
the Indenture Trustee fails to comply with Section 8.02(c); (2) the Indenture
Trustee is adjudged a bankrupt or an insolvent; (3) a receiver or public
officer takes charge of the Indenture Trustee or its property; or (4) the
Indenture Trustee becomes incapable of performing its duties hereunder.

                 (a)      In the case of the resignation or removal of the
Indenture Trustee, the Owner Trustee shall, unless otherwise directed by a
Majority in Interest, promptly appoint a successor Indenture Trustee, provided
that a Majority in Interest may appoint, within one year after such resignation
or removal, a successor Indenture Trustee which may be other than the successor
Indenture Trustee appointed as provided above, and such successor Indenture
Trustee appointed as provided above shall be superseded by the successor
Indenture Trustee so appointed by a Majority in Interest.  If a successor
Indenture Trustee shall not have been appointed and accepted its appointment
hereunder within 60 days after the Indenture Trustee gives notice of
resignation or is removed as provided above, the retiring Indenture Trustee,
the Lessee, the Owner Trustee or a Majority in Interest may petition any court
of competent jurisdiction for the appointment of a successor Indenture Trustee.
Any successor Indenture Trustee so appointed by such court shall immediately
and without further act be superseded by any successor Indenture Trustee
appointed as provided in the proviso to the first sentence of this paragraph
(a) within one year from the date of the appointment by such court.

                 (b)      Any successor Indenture Trustee, however appointed,
shall execute and deliver to the Owner Trustee and the Lessee and to the
predecessor Indenture Trustee an instrument accepting such appointment, and
thereupon such successor Indenture Trustee, without further act, shall become
vested with all the estates, properties, rights, powers, duties and trusts of
the predecessor Indenture Trustee hereunder in the trusts hereunder applicable
to it with like effect as if originally named the Indenture Trustee herein; but
nevertheless, upon the written request of such successor Indenture Trustee,
such predecessor Indenture Trustee shall execute and deliver an instrument
transferring to such Indenture Trustee, upon the trusts herein expressed
applicable to it, all the estates, properties, rights, powers and trusts of
such predecessor Indenture Trustee, and such Indenture Trustee shall duly
assign, transfer, deliver and pay over to such successor Indenture Trustee all
moneys or other property then held by such predecessor Indenture Trustee
hereunder.

                 (c)      The Indenture Trustee shall be a bank or trust
company organized under the laws of the United States or any State thereof
having a combined capital and surplus of at least $100,000,000, if there be
such an institution willing, able and legally qualified to perform the duties
of the Indenture Trustee hereunder upon reasonable or customary terms.




                                      33
<PAGE>   38
                 (d)      Any corporation into which the Indenture Trustee may
be merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which the Indenture
Trustee shall be a party, or any corporation to which substantially all the
corporate trust business of the Indenture Trustee may be transferred, shall,
subject to the terms of paragraph (c) of this Section, be the Indenture Trustee
under this Indenture without further act.

                                  ARTICLE IX.
                           SUPPLEMENTS AND AMENDMENTS
                     TO THIS INDENTURE AND OTHER DOCUMENTS

                 Section 9.01.  Supplemental Indentures without Consent of
Holders.  (a)  The Owner Trustee and the Indenture Trustee, at any time and
from time to time, without notice to or the consent of any holders of any
Equipment Notes, may enter into one or more indentures supplemental hereto for
any of the following purposes:

                          (i)     to correct or amplify the description of any
         property at any time subject to the Lien of this Indenture or better
         to assure, convey and confirm unto the Indenture Trustee any property
         subject or required to be subject to the Lien of this Indenture or to
         subject to the Lien of this Indenture any Unit or Units substituted
         for any Unit or Units in accordance with the Lease; provided, however,
         that indenture supplements entered into for the purpose of subjecting
         to the Lien of this Indenture any Unit or Units substituted for any in
         accordance with the Lease need only be executed by the Owner Trustee;
         or

                          (ii)    to evidence the succession of another trustee
         to the Owner Trustee and the assumption by any such successor of the
         covenants of the Owner Trustee herein and in the Equipment Notes
         contained, or to evidence (in accordance with Article VIII) the
         succession of a new Indenture Trustee hereunder; or

                          (iii)   to add to the covenants of the Owner Trustee,
         for the benefit of the holders of the Equipment Notes, or to surrender
         any right or power herein conferred upon the Owner Trustee; or

                          (iv)    to cure any ambiguity, to correct or
         supplement any provision herein which may be defective or inconsistent
         with any other provision herein, or to make any other provisions with
         respect to matters or questions arising hereunder so long as any such
         action does not adversely affect the interests of the holders of the
         Equipment Notes;

provided that no such supplement to this Indenture or waiver or modification of
the terms hereof shall adversely affect in a substantive manner the interests
of the Lessee without the Lessee's prior written consent, and in no event shall
the terms of the proviso to the first sentence of Section 4.03(a) or Section
4.05 be so altered or modified without such Lessee consent.





                                      34
<PAGE>   39
                 (b)      Supplemental Indentures with Consent of Majority In
Interest.  With the written consent of a Majority in Interest, the Owner
Trustee (but only on the written request of the Owner Participant) may, and the
Indenture Trustee, subject to Section 9.02 hereof, shall, at any time and from
time to time, enter into an indenture or indentures supplemental hereto for the
purpose of adding any provisions to or changing in any manner or eliminating
any of the provisions of this Indenture or of modifying in any manner the
rights and obligations of holders of the Equipment Notes and of the Owner
Trustee under this Indenture; provided, however, without the consent of each
holder of an Equipment Note affected thereby, no such supplemental indenture
shall:

                          (1)     change the final maturity of the principal of
         any Equipment Note, or change the dates or amounts of payment of any
         installment of the principal of, premium, if any, or interest on any
         Equipment Note, or reduce the principal amount thereof or the premium,
         if any, or interest thereon, or change to a location outside the
         United States the place of payment where, or the coin or currency in
         which, any Equipment Note or the premium, if any, or interest thereon
         is payable, or impair the right to institute suit for the enforcement
         of any such payment of principal or premium, if any, or interest on or
         after the date such principal or premium, if any, or interest becomes
         due and payable; or

                          (2)     create any Lien with respect to the Indenture
         Estate ranking prior to, or on a parity with, the security interest
         created by this Indenture except such as are permitted by this
         Indenture, or deprive any holder of an Equipment Note of the benefit
         of the Lien on the Indenture Estate created by this Indenture; or

                          (3)     reduce the percentage in principal amount of
         the Equipment Notes, the consent of whose holders is required for any
         such supplemental indenture, or the consent of whose holders is
         required for any waiver (of compliance with certain provisions of this
         Indenture, or of certain defaults hereunder and their consequences)
         provided for in this Indenture; or

                          (4)     modify any provisions of this Section
         9.01(b), except to provide that certain other provisions of this
         Indenture cannot be modified or waived without the consent of the
         holder of each Equipment Note affected thereby;

provided that no such supplement to this Indenture or waiver or modification of
the terms hereof shall adversely affect in a substantive manner the interests
of the Lessee without the Lessee's prior written consent, and in no event shall
the terms of the proviso to the first sentence of Section 4.03(a) or Section
4.05 be so altered or modified without such Lessee consent.

                 Section 9.02.  Indenture Trustee Protected.  If in the opinion
of the Indenture Trustee any document required to be executed pursuant to the
terms of Section 9.01 adversely affects any right, duty, immunity or indemnity
in favor of the Indenture Trustee under this




                                      35
<PAGE>   40
Indenture, the Participation Agreement or the  Lease, the Indenture Trustee may
in its discretion decline to execute such document.

                 Section 9.03.  Request of Substance, Not Form.  It shall not
be necessary for the consent of the holders of Equipment Notes under Section
9.01(b) to approve the particular form of any proposed supplemental indenture,
but it shall be sufficient if such consent shall approve the substance thereof.

                 Section 9.04.  Documents Mailed to Holders.  Promptly after
the execution by the Indenture Trustee of any document entered into pursuant to
Section 9.01(b), the Indenture Trustee shall mail, by first-class mail, postage
prepaid, a conformed copy thereof to each holder of an Equipment Note at its
address last known to the Indenture Trustee, but the failure of the Indenture
Trustee to mail such conformed copies shall not impair or affect the validity
of such document.

                 Section 9.05.  Amendments, Waivers, Etc. of Other Documents.
(a)  Notwithstanding any provision of this Indenture to the contrary, without
the consent of a Majority in Interest, the respective parties to the Lease, the
Participation Agreement and the Trust Agreement may not modify, amend or
supplement any of such agreements, or give any consent, waiver, authorization
or approval under any of such agreements, for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions
thereof or of modifying in any manner the rights of the respective parties
thereunder; provided, however, that the actions specified in subsection (b) of
this Section 9.05 may be taken, except as otherwise expressly provided therein,
without the consent of the Indenture Trustee or of a Majority in Interest or
any holder of an Equipment Note.

                 (b)      Subject to the provisions of subsection (c) of this
Section 9.05, the respective parties to the Lease, the Trust Agreement and the
Participation Agreement, at any time and from time to time without the consent
of the Indenture Trustee or of a Majority in Interest or any holder of an
Equipment Note, may:

                          (1)     so long as no Indenture Event of Default
         shall have occurred and be continuing, modify, amend or supplement the
         Lease, or give any consent, waiver, authorization or approval with
         respect thereto, except that without the consent of a Majority in
         Interest, the parties to the Lease shall not modify, amend or
         supplement, or give any consent, waiver, authorization or approval for
         the purpose of adding any provisions to or changing in any manner or
         eliminating any of the provisions thereof or of modifying in any
         manner the rights of the respective parties thereunder, with respect
         to the following provisions of the Lease: Sections 2, 3.1 (if the
         result thereof would be to shorten the Basic Term to a period shorter
         than the period ending with the final maturity of the Equipment
         Notes), 3.2, 3.3, 3.4, 3.6 (except insofar as it relates to the
         address or account information of the Owner Trustee or Indenture
         Trustee) (other than as such Sections 3.1 through 3.4 and 3.6 may be
         amended pursuant to Section 3.4 of the




                                      36
<PAGE>   41
         Lease as originally executed), 4, 6 (but only to the extent such
         Section is made operative by Section 15), 7, 8, 9, 10 (except that
         additional requirements may be imposed on the Lessee's ability to
         terminate the Lease with respect to a Unit), 11 (except that
         additional requirements may be imposed on the Lessee's ability to
         replace a Unit subject to an Event of Loss), 12 (except that
         additional insurance requirements may be imposed on the Lessee), 13,
         14, 15, 16, 17, 18, 19, 20, 21, 22 (if the result thereof would be to
         provide any renewal or purchase option contained in such Section prior
         to the final maturity of the Equipment Notes), 24, 25.1, 25.4, 25.6,
         25.10, and any definition of terms used in the Lease, to the extent
         that any modification of such definition would result in a
         modification of the Lease not permitted as aforesaid in this clause
         (1) of subsection (b); provided that, in the event an Indenture Event
         of Default shall have occurred and be continuing, the Indenture
         Trustee shall have all rights of the Owner Trustee as "Lessor" under
         the Lease to modify, amend or supplement the Lease or give any
         consent, waiver, authorization or approval thereunder, for the purpose
         of adding any provisions to or changing in any manner or eliminating
         any of the provisions thereof or of modifying in any manner the rights
         of the "Lessor" thereunder; provided, further, that, subject to the
         Indenture Trustee's rights to exercise remedies under Section 15 of
         the Lease without the prior consent of the Owner Trustee, and whether
         or not an Indenture Event of Default shall have occurred and be
         continuing, no such modification, amendment or supplement of the Lease
         or other action referred to in the preceding proviso shall be taken
         without the prior written consent of the Owner Trustee with respect to
         any of the provisions of Sections 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
         (with respect to insurance coverage of the interests of the Owner
         Trustee and the Owner Participant), 13, 14, 15 (in respect of the
         obligation to pay and the measure of money damages), 16 (with respect
         to filings or recordings benefiting the Owner Trustee or the Owner
         Participant), 17, 18, 19, 20, 22, 23, 25.1 and 25.5 of the Lease and
         any definition of terms used in the Lease, to the extent that any
         modification of such definition would result in a modification of the
         Lease not permitted pursuant to this proviso;

                          (2)     modify, amend or supplement the Trust
         Agreement, or give any consent, waiver, authorization or approval with
         respect thereto, except that without the consent of a Majority of
         Interest, the parties to the Trust Agreement shall not modify, amend
         or supplement, or give any consent, waiver, authorization or approval
         for the purpose of adding any provisions to or changing in any manner
         or eliminating any of the provisions thereof or of modifying in any
         manner the rights of the respective parties thereunder, with respect
         to Sections 2.1, 2.2, 3.1, 4.4, 7.1, 7.2, 9.1, 10.1, 10.2, 10.7, 10.11
         or any other Section of the Trust Agreement if such action would
         materially adversely affect the interest of the Loan Participants, and
         any definition of terms used in the Trust Agreement, to the extent
         that any modification of such definition would result in a
         modification of the Trust Agreement not permitted pursuant to this
         subsection (b);

                          (3)     modify, amend or supplement the Participation
         Agreement, or give any consent, waiver, authorization or approval with
         respect thereto, except that without





                                      37
<PAGE>   42
         the consent of a Majority of Interest, the parties to the
         Participation Agreement shall not modify, amend or supplement, or give
         any consent, waiver, authorization or approval for the purpose of
         adding any provisions to or changing in any manner or eliminating any
         of the provisions thereof or of modifying in any manner the rights of
         the respective parties thereunder, with respect to the following
         provisions of the Participation Agreement: Sections 1, 2, 3, 4, 5, 6,
         7, 10.2, 10.5, 10.7, 10.9 and 10.13(a), each provision of the
         Participation Agreement which specifically refers to the Indenture
         Trustee or Loan Participants and any definition of terms used in the
         Participation Agreement, to the extent that any modification of such
         definition would result in a modification of the Participation
         Agreement not permitted pursuant to this subsection (b); and

                          (4)     modify, amend or supplement any of said
         agreements in order to cure any ambiguity, to correct or supplement
         any provision thereof which may be defective or inconsistent with any
         other provision thereof or any provision of this Indenture, or to make
         any other provision with respect to matters or questions arising
         thereunder or under this Indenture which shall not be inconsistent
         with the provisions of this Indenture, provided any such action shall
         not adversely affect the interests of the holders of the Equipment
         Notes.

                 (c)      No modification, amendment, supplement, consent,
waiver, authorization or approval with respect to the Lease or the
Participation Agreement, whether effected pursuant to subsection (a) or
pursuant to subsection (b) of this Section 9.05, and anything in such
subsections or elsewhere in this Indenture to the contrary notwithstanding,
shall, without the consent of the holder of each Equipment Note affected
thereby:

                          (1)     modify, amend or supplement the Lease in such
         a way as to extend the time of payment of Basic Rent or Stipulated
         Loss Value and any other amounts payable under, or as provided in, the
         Lease upon the occurrence of an Event of Loss or Termination Value and
         any other amounts payable under, or as provided in, the Lease upon
         termination thereof or reduce the amount of any installment of Basic
         Rent so that the same is less than the payment of interest and
         principal on the Equipment Notes, as the case may be, to be made from
         such installment of Basic Rent or reduce the aggregate amount of
         Stipulated Loss Value and any other amounts payable under, or as
         provided in, the Lease upon the occurrence of an Event of Loss so that
         the same is less than the accrued interest on and principal of the
         Equipment Notes required to be paid at the time of such payments, or
         reduce the amount of Termination Value and any other amounts payable
         under, or as provided in, the Lease upon termination thereof so that
         the same is less than the accrued interest on and principal of the
         Equipment Notes required to be paid at the time of such payments; or

                          (2)     modify, amend or supplement the Lease in such
         a way as to, or consent to any assignment of the Lease or give any
         consent, waiver, authorization or approval which would, release the
         Lessee from its obligation in respect of payment of




                                      38
<PAGE>   43
         Basic Rent or Stipulated Loss Value and any other amounts payable
         under, or as provided in, the Lease upon the occurrence of an Event of
         Loss, or Termination Value and any other amounts payable under, or as
         provided in, the Lease upon termination thereof, except for any such
         assignment pursuant to Section 6.8 of the Participation Agreement, and
         except as provided in the Lease.

                                   ARTICLE X.
                                 MISCELLANEOUS

                 Section 10.01.   Termination of Indenture.  With respect to
each Unit, this Indenture and the trusts created hereby shall terminate and
this Indenture shall be of no further force or effect upon the earliest to
occur of (i) the termination of the Lease Term with respect to such Unit by
Lessee pursuant to Section 10 or Section 22.1 thereof and upon payment in full
to the Indenture Trustee of the amounts required to be paid pursuant to Section
2.10(a) in respect of such Unit, (ii) the termination of the Lease with respect
to such Unit pursuant to Section 11 thereof and upon payment in full to the
Indenture Trustee of the amounts required to be paid pursuant to Section
2.10(b) in respect of such Unit, and (iii) the payment in full of the principal
amount of and interest on all Equipment Notes outstanding hereunder and all
other sums payable to the Indenture Trustee and the holders of the Equipment
Notes hereunder and under such Equipment Notes and under the Participation
Agreement.

                 Section 10.02.   No Legal Title to Indenture Estate in
Holders.  No holder of an Equipment Note shall have legal title to any part of
the Indenture Estate.  No transfer, by operation of law or otherwise, of any
Equipment Note or other right, title and interest of any holder of an Equipment
Note in and to the Indenture Estate or hereunder shall operate to terminate
this Indenture or the trusts hereunder or entitle any successor or transferee
of such holder to an accounting or to the transfer to it of legal title to any
part of the Indenture Estate.

                 Section 10.03.   Sale of Equipment by Indenture Trustee is
Binding.  Any sale or other conveyance of the Equipment by the Indenture
Trustee made pursuant to the terms of this Indenture or the Lease shall bind
the holders of the Equipment Notes, the Owner Trustee and the Owner Participant
and shall be effective to transfer or convey all right, title and interest of
the Indenture Trustee, the Owner Trustee, the Owner Participant and such
holders of the Equipment Notes in and to the Equipment.  No purchaser or other
grantee shall be required to inquire as to the authorization, necessity,
expediency or regularity of such sale or conveyance or as to the application of
any sale or other proceeds with respect thereto by the Indenture Trustee.

                 Section 10.04.   Remedies Cumulative.  Each and every right,
power and remedy herein specifically given to the Indenture Trustee or
otherwise in this Indenture shall be cumulative and shall be in addition to
every other right, power and remedy herein specifically given or now or
hereafter existing at law, in equity or by statute, and each and every right,
power and remedy whether specifically herein given or otherwise existing may be
exercised from time to time and as often and in such order as may be deemed
expedient by the Indenture Trustee, and





                                      39
<PAGE>   44
the exercise or the beginning of the exercise of any power or remedy shall not
be construed to be a waiver of the right to exercise at the time or thereafter
any other right, power or remedy.  No delay or omission by the Indenture
Trustee in the exercise of any right, remedy or power or in the pursuance of
any remedy shall impair any such right, power or remedy or be construed to be a
waiver of any default on the part of the Owner Trustee or the Lessee or to be
an acquiescence therein.

                 Section 10.05.   Discontinuance of Proceedings.  In case the
Indenture Trustee shall have proceeded to enforce any right, power or remedy
under this Indenture by foreclosure, entry or otherwise, and such proceedings
shall have been discontinued or abandoned for any reason or shall have been
determined adversely to the Indenture Trustee, then and in every such case the
Owner Trustee, the Owner Participant, the Indenture Trustee and the Lessee
shall be restored to their former positions and rights hereunder with respect
to the Indenture Estate, and all rights, remedies and powers of the Indenture
Trustee shall continue as if no such proceedings had been undertaken (but
otherwise without prejudice).

                 Section 10.06.   Indenture and Equipment Notes for Benefit of
Owner Trustee, Indenture Trustee, Owner Participant and Holders Only.  Nothing
in this Indenture, whether express or implied, shall be construed to give to
any Person other than the Owner Trustee (individually and as trustee), the
Indenture Trustee, the Owner Participant (as set forth herein) and the holders
of the Equipment Notes any legal or equitable right, remedy or claim under or
in respect of this Indenture or any Equipment Note.

                 Section 10.07.   Notices.

                 Unless otherwise expressly specified or permitted by the terms
hereof, all communications and notices provided for herein shall be in writing
or by facsimile capable of creating a written record, and any such notice shall
become effective (i) upon personal delivery thereof, including, without
limitation, by overnight mail or courier service, (ii) in the case of notice by
United States mail, certified or registered, postage prepaid, return receipt
requested, upon receipt thereof, or (iii) in the case of notice by such
facsimile, upon confirmation of receipt thereof, provided such transmission is
promptly further confirmed in writing by either of the methods set forth in
clause (i) or (ii), in each case addressed to the following Person at its
respective address set forth below or at such other address as such Person may
from time to time designate by written notice to the other Persons listed
below:




                                      40
<PAGE>   45
<TABLE>
         <S>                               <C>
         If to the Owner Trustee:          First Security Bank, N.A.
                                           79 South Main Street
                                           Salt Lake City, Utah  84111
                                           Attention:                Corporate Trust Services
                                           Fax No.:                  (801) 246-5053
                                           Confirmation No.:         (801) 246-5630

                                           With copies to Owner Participant.

         If to Owner Participant:          Dreyfus Service Corporation
                                           c/o Mellon Financial Services Corporation #4
                                           One Mellon Bank Center, Suite 4444
                                           Pittsburgh, Pennsylvania  15258-0001
                                           Attention:                President
                                           Fax No.:                  (412) 234-5062
                                           Confirmation No.:         (412) 234-5061

                                           With copies to:

                                           Dreyfus Service Corporation
                                           200 Park Avenue
                                           New York, New York  10166
                                           Attention:                William V. Healey
                                           Fax No.:                  (212) 922-6880
                                           Confirmation No.:         (212) 922-6760

                                           [AMSOUTH LEASING CORPORATION
                                           1900 FIFTH AVENUE NORTH, 8TH FLOOR
                                           BIRMINGHAM, ALABAMA  35203
                                           ATTENTION:                PRESIDENT
                                           FAX NO.:                  (205) 307-4124
                                           CONFIRMATION NO.:         (205) 326-5780]

         If to the Indenture Trustee:      The First National Bank of Chicago
                                           One First National Plaza, Suite 0126
                                           Chicago, Illinois  60670-0126
                                           Attention:                Corporate Trust Services Division
                                                                     (GATC Trust No. 96-1)
                                           Fax No.:                  (312) 407-1708
                                           Confirmation No.:         (312) 407-1892
</TABLE>




                                      41
<PAGE>   46
<TABLE>
         <S>                                       <C>
         If to Lessee:                             General American Transportation Corporation
                                                   500 West Monroe Street
                                                   Chicago, Illinois  60661
                                                   Attention:                Treasurer
                                                                             (GATC Trust No. 96-1)
                                                   Fax No.:                  (312) 621-6645
                                                   Confirmation No.:         (312) 621-6200

         If to the Loan Participant:               At such address as is set forth on Schedule 2 of the Participation
                                                   Agreement or, if not so specified, at the address set forth in the
                                                   register maintained pursuant to Section 2.07 hereof, or at such
                                                   address as such Loan Participant shall have furnished by notice to
                                                   the Owner Trustee and the Indenture Trustee.
</TABLE>

                 Notwithstanding the foregoing provisions, for purposes of
Sections 4.01, 4.02, 4.04, 5.01 and 5.02, written notice shall be deemed given
when it is in fact received (by mail or otherwise) by any addressee at the
respective addresses specified above.

                 Section 10.08.   Severability.  Any provision of this
Indenture which is prohibited or unenforceable in any jurisdiction shall, as to
such jurisdiction, be ineffective to the extent of such prohibition or
unenforceability without invalidating the remaining provisions hereof, and any
such prohibition or unenforceability in any jurisdiction shall not invalidate
or render unenforceable such provision in any other jurisdiction.  In the event
of any inconsistency or conflict between any provision of this Indenture and
any provision of the Trust Agreement, such provision in this Indenture shall
govern and control.

                 Section 10.09.   Separate Counterparts.  This Indenture may be
executed in any number of counterparts (and each of the parties hereto shall
not be required to execute the same counterpart).  Each counterpart of this
Indenture including a signature page executed by each of the parties hereto
shall be an original counterpart of this Indenture, but all of such
counterparts together shall constitute one instrument.

                 Section 10.10.   Successors and Assigns.  All covenants and
agreements contained herein shall be binding upon, and inure to the benefit of,
the Owner Trustee and its successors and permitted assigns, the Owner
Participant and its successors and permitted assigns, and the Indenture Trustee
and its successors and permitted assigns, and each holder of an Equipment Note,
all as herein provided.  Any request, notice, direction, consent, waiver or
other instrument or action by any holder of an Equipment Note shall bind the
successors and assigns of such holder.





                                      42
<PAGE>   47
                 Section 10.11.   Headings.  The headings of the various
Articles and Sections herein are for convenience of reference only and shall
not define or limit any of the terms or provisions hereof.

                 Section 10.12.   Governing Law.  This Indenture shall in all
respects be governed by, and construed in accordance with, the laws of the
State of New York, including all matters of construction, validity and
performance.

                 Section 10.13.   Normal Commercial Relations.  Anything
contained in this Indenture to the contrary notwithstanding, the Owner
Participant, the Owner Trustee or the Indenture Trustee or any affiliate of the
Owner Participant, the Owner Trustee or the Indenture Trustee may enter into
commercial banking or other financial transactions, and conduct banking or
other commercial relationships, with the Lessee, any holder of an Equipment
Note or the Indenture Trustee (in its individual capacity or otherwise) fully
to the same extent as if this Indenture were not in effect, including, without
limitation, the making of loans or other extensions of credit for any purpose
whatsoever.

                 Section 10.14.   No Recourse Against Others.  No director,
officer, employee or stockholder, as such, of Lessee, Owner Trustee, Owner
Participant or Indenture Trustee shall have any liability for any obligations
of Lessee, Owner Participant, Owner Trustee or Indenture Trustee or under the
Equipment Notes or the Indenture or for any claim based on, in respect of or by
reason of such obligations or their creation.  Each holder of the Equipment
Notes by accepting an Equipment Note waives and releases all such liability.
The waiver and release are part of the consideration of the Equipment Notes.





                                      43
<PAGE>   48
                 In Witness Whereof, the parties hereto have caused this
Indenture to be duly executed by their respective officers or
attorneys-in-fact, as the case may be, thereunto duly authorized, as of the day
and year first above written.


                                   The First National Bank of Chicago,
                                    as Indenture Trustee


                                   By:       ___________________________________
                                   Name:     ___________________________________
                                   Title:    ___________________________________


                                   First Security Bank, N.A.,
                                    not in its individual capacity except as 
                                    set forth in Section 6.03 hereof, but 
                                    solely as Owner Trustee


                                   By:       ___________________________________
                                   Name:     ___________________________________
                                   Title:    ___________________________________





<PAGE>   49
State of Illinois         )
                          )  SS
County of Cook            )


                 On this ____ day of August, 1996, before me personally
appeared _________________________, to me personally known, who being by me
duly sworn, say that he is __________________________ of The First National
Bank of Chicago, that said instrument was signed on such date on behalf of said
corporation by authority of its Board of Directors, and he acknowledged that
the execution of the foregoing instrument was the free act and deed of said
corporation.


                                   _____________________________________________
                                   Notary Public

[Notarial Seal]

My commission expires:




State of                          )
                                  )  SS
County of                         )


                 On this ____ day of August, 1996, before me personally
appeared _________________________, to me personally known, who being by me
duly sworn, say that he is the _________________________ of First Security
Bank, N.A., that said instrument was signed on such date on behalf of said
corporation by authority of its Board of Directors, and he acknowledged that
the execution of the foregoing instrument was the free act and deed of said
corporation.


                                   _____________________________________________
                                   Notary Public

[Notarial Seal]

My commission expires:




                                      1
<PAGE>   50
                                                                       EXHIBIT A

                        TRUST INDENTURE SUPPLEMENT NO. _
                             (GATC TRUST NO. 96-1)

                 This Indenture Supplement No. _ (GATC Trust No. 96-1), dated
____ ___, ____ (this "Indenture Supplement"), of First Security Bank, N.A., a
national banking association, not in its individual capacity but solely as
trustee (the "Owner Trustee") under the Trust Agreement (GATC Trust No. 96-1),
dated as of August 28, 1996 (the "Trust Agreement"), between the Owner Trustee
in its individual capacity and Dreyfus Service Corporation, a New York
corporation [AMSOUTH LEASING CORPORATION, AN ALABAMA BANKING CORPORATION], as
Owner Participant;

                                  WITNESSETH:

                 WHEREAS, the Trust Indenture and Security Agreement (GATC
Trust No. 96-1) dated as of August 28, 1996 (the "Indenture"), between the
Owner Trustee and The First National Bank of Chicago as Indenture Trustee (the
"Indenture Trustee"), provides for the execution and delivery of Indenture
Supplements thereto substantially in the form hereof each of which shall
particularly describe the Units covered by a related Lease Supplement under the
Lease, by having attached thereto a copy of such related Lease Supplement, and
shall specifically mortgage such Units to the Indenture Trustee;

                 WHEREAS, the Indenture includes the Equipment described in the
copy of Lease Supplement No. __ attached hereto and made a part hereof; and

                 [WHEREAS, an executed counterpart of the Indenture is attached
to this Indenture Supplement;]

                 NOW, THEREFORE, in order to secure the prompt payment of the
principal of, and premium, if any, and interest on all of the Equipment Notes
from time to time outstanding under the Indenture and the performance and
observance by the Owner Trustee of all the agreements, covenants and provisions
in the Indenture for the benefit of the holders of the Equipment Notes and in
the Equipment Notes, subject to the terms and conditions of the Indenture, and
in consideration of the premises and of the covenants contained in the
Indenture and of the acceptance of the Equipment Notes by the holders thereof,
and of the sum of $1.00 paid to the Owner Trustee by the Indenture Trustee at
or before the delivery hereof, the receipt whereof is hereby acknowledged, the
Owner Trustee (i) has sold, assigned, transferred, pledged and confirmed, and
does hereby sell, assign, transfer, pledge and confirm, a security interest in
and mortgage lien on all right, title and interest of the Owner Trustee in and
to the property comprising the Equipment described in the copy of Lease
Supplement No. __ attached hereto, and (ii) has sold, assigned, transferred and
set over, a security interest in and mortgage lien on all of the right, title
and interest of the Owner Trustee under, in and to such Lease Supplement





<PAGE>   51
(excluding, however, any rights to Excepted Property thereunder), referred to
above, to the Indenture Trustee, its successors and assigns, in the trust
created by the Indenture for the benefit of the holders from time to time of
the Equipment Notes.

                 To have and to hold all and singular the aforesaid property
unto the Indenture Trustee, its successors and assigns, in trust for the
benefit and security of the holders from time to time of the Equipment Notes
and for the uses and purposes and subject to the terms and provisions set forth
in the Indenture.

                 This Supplement shall be construed as supplemental to the
Indenture and shall form a part of it, and the Indenture is hereby incorporated
by reference herein and is hereby ratified, approved and confirmed.

                 This Supplement may be executed by the Owner Trustee in
separate counterparts, each of which when so executed and delivered is an
original, but all such counterparts shall together constitute but one and the
same Supplement.

                 AND FURTHER, the Owner Trustee hereby acknowledges that the
Equipment referred to in the aforesaid Lease Supplement attached hereto and
made a part hereof has been delivered to the Owner Trustee and is included in
the property of the Owner Trustee covered by all the terms and conditions of
the Trust Agreement, subject to the pledge or mortgage thereof under the
Indenture.




                                     A-3
<PAGE>   52
                 IN WITNESS WHEREOF, the Owner Trustee has caused this
Indenture Supplement to be duly executed by one of its duly authorized
officers, as of the day and year first above written.

                                  First Security Bank, N.A.,
                                  not in its individual capacity, but solely as
                                  Owner Trustee



                                  By:     ___________________________________
                                  Name:   ___________________________________
                                  Title:  ___________________________________





                                     A-4
<PAGE>   53

State of                          )
                                  )  SS
County of                         )


                 On this ____ day of August, 1996, before me personally
appeared __________________________, to me personally known, who being by me
duly sworn, say that he is _________________________ of First Security Bank,
N.A., that said instrument was signed on such date on behalf of said
corporation by authority of its Board of Directors, and he acknowledged that
the execution of the foregoing instrument was the free act and deed of said
corporation.

                                   _____________________________________________
                                   Notary Public


[Notarial Seal]
My commission expires:




                                     A-5
<PAGE>   54
                                                                       EXHIBIT B


                            TERMS OF EQUIPMENT NOTES





<TABLE>
<CAPTION>
           Series                  Principal Amount             Interest Rate             Final Maturity
           ------                 -----------------             -------------             --------------
           <S>                    <C>                           <C>                       <C>
                                  $[____________]                 ____%                    August 28, 20__
</TABLE>




                                      B-1
<PAGE>   55
                                                                       EXHIBIT C


                                LOAN PARTICIPANT

<TABLE>
<CAPTION>
                                                                                                PERCENTAGE OF
      EQUIPMENT NOTES                       LOAN PARTICIPANT                                  PRINCIPAL AMOUNT
      ---------------                       ----------------                                  ----------------
      <S>                           <C>                                                             <C>
      Equipment Notes               The First National Bank of Chicago, as Trustee                  100%
                                    under the Pass Through Trust Agreement, dated as of
                                    August 1, 1992 between The First National Bank of
                                    Chicago and General American Transportation
                                    Corporation, as supplemented by Trust Supplement
                                    No. 6 thereto dated as of August 28, 1996 and by
                                    Trust Supplement No. 7 thereto dated as of August
                                    28, 1996
</TABLE>




                                     C-1
<PAGE>   56
                                                                         ANNEX A


                             AMORTIZATION SCHEDULE

                              ____% EQUIPMENT NOTE

                                   1996-1-__

<TABLE>
<CAPTION>
                                                                   Percentage of
                                                                   Remaining Principal
                           Payment Date                            Balance Payment (1)
                           ------------                            -------------------
                          <S>     <C>
                          (1)     The percentage should be applied to the remaining principal balance of the Equipment
                                  Note after giving effect to prepayment, if any, to be made on the payment date.
</TABLE>





                                     C-2
<PAGE>   57

                                                                      Appendix A
                                                         Participation Agreement
                                                       Equipment Lease Agreement
                                          Trust Indenture and Security Agreement
                                                                 Trust Agreement
                                                           (GATC Trust No. 96-1)

                                  DEFINITIONS

General Provisions

         The following terms shall have the following meanings for all purposes
of the Operative Agreements referred to below, unless otherwise defined in an
Operative Agreement or the context thereof shall otherwise require and such
meanings shall be equally applicable to both the singular and the plural forms
of the terms herein defined.  In the case of any conflict between the
provisions of this Appendix A and the provisions of the main body of any
Operative Agreement, the provisions of the main body of such Operative
Agreement shall control the construction of such Operative Agreement.

         Unless the context otherwise requires, (i) references to agreements
shall be deemed to mean and include such agreements as the same may be amended,
supplemented and otherwise modified from time to time, and (ii) references to
parties to agreements shall be deemed to include the permitted successors and
assigns of such parties.

Defined Terms

         "AAR" shall mean the Association of American Railroads or any
successor thereto.

         "Affiliate" of any Person shall mean any other Person which directly
or indirectly controls, or is controlled by, or is under a common control with,
such Person.  The term "control" means the possession, directly or indirectly,
of the power to direct or cause the direction of the management and policies of
a Person, whether through the ownership of voting securities, by contract or
otherwise, and the terms "controlling" and "controlled" shall have meanings
correlative to the foregoing.

         "After-Tax Basis" shall mean, with respect to any payment received or
accrued by any Person, that the amount of such payment is supplemented by a
further payment or payments so that the sum of all such payments, after
reduction for all Taxes payable by such Person imposed by any taxing authority,
shall be equal to the payment due to such Person.

         "Alternative  Minimum Tax" shall mean the alternative minimum tax
imposed under Section 55 of the Code.




                                     -1-
<PAGE>   58
         "Appraisal" shall have the meaning specified in Section 4.3(a) of the
Participation Agreement.

         "Average Life Date" shall mean, with respect to an Equipment Note, the
date which follows the prepayment date or, in the case of an Equipment Note not
being prepaid, the date of such determination, by a period equal to the
Remaining Weighted Average Life of such Equipment Note.

         "Bankruptcy Code" shall mean the United States Bankruptcy Reform Act
of 1978, as amended from time to time, 11 U.S.C. Section 101 et. seq.

         "Basic Group" shall mean each of the two basic groups of Equipment so
designated in Schedule 1 to the Participation Agreement.

         "Basic Prospectus" shall mean the prospectus contained in the
Registration Statement when the most recent post-effective amendment thereto
became effective.

         "Basic Rent" shall mean, with respect to any Unit, all rent payable by
the Lessee to the Lessor pursuant to Section 3.2 of the Lease for the Basic
Term for such Unit, and all rent payable pursuant to Section 22.4 of the Lease
for any Renewal Term for such Unit.

         "Basic Term" shall have the meaning specified in Section 3.1 of the
Lease.

         "Basic Term Commencement Date" shall mean August 28, 1996.

         "Basic Term Expiration Date" shall mean (i) with respect to the Units
related to Lease Supplement No. I, August 28, 20__, and (ii) with respect to
the Units related to Lease Supplement No. II, August 28, 20__.

         "Basic Term Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 7 to the
Participation Agreement applicable to such Unit and the Equipment Cost for such
Unit.

         "Beneficial Interest" shall mean the interest of the Owner Participant
under the Trust Agreement.

         "Bill of Sale" shall mean the full warranty bill of sale, dated the
Closing Date or the date that any Replacement Unit is subjected to the Lease,
from Lessee to Owner Trustee covering the Units delivered on the Closing Date
or such Replacement Unit, as the case may be.

         "Business Day" shall mean any day other than a Saturday, Sunday or a
day on which commercial banking institutions are authorized or required by law,
regulation or executive order to be closed in New York, New York, Chicago,
Illinois, Pittsburgh, Pennsylvania, Birmingham, Alabama, the city and state in
which the principal corporate trust office of the Owner Trustee is




                                     -2-
<PAGE>   59
located, or, until the Lien of the Indenture has been discharged, the city and
state in which the principal corporate trust office of the Indenture Trustee is
located.

         "Certificateholder" means the Person in whose name a Pass Through
Certificate is registered in the register for Pass Through Certificates of a
particular series.

         "Claims" shall have the meaning specified in Section 7.2 of the 
Participation Agreement.

         "Closing Date" shall have the meaning specified in Section 2.1 of the
Participation Agreement.

         "Code" shall mean the Internal Revenue Code of 1986, as amended from 
time to time.

         "Commitment" with respect to the Owner Participant, shall have the
meaning specified in Section 2.2(a) to the Participation Agreement and with
respect to the Loan Participant, shall have the meaning specified in Section
2.2(b) to the Participation Agreement.

         "Debt Rate" shall mean as of the date of determination, a rate equal
to the rate of interest per annum borne by the Equipment Notes then outstanding
(computed on the basis of a 360-day year of twelve 30-day months).

         [AMSOUTH:  "DEFERRED PORTION" SHALL MEAN THAT PORTION OF THE EARLY
PURCHASE PRICE, THE PAYMENT OF WHICH MAY BE DEFERRED BY THE LESSEE PAST THE
APPLICABLE EARLY PURCHASE DATE FOR SUCH UNIT OR UNITS, AS SET FORTH IN SCHEDULE
6 TO THE PARTICIPATION AGREEMENT.]

         [AMSOUTH:  "DEFERRED PORTION PAYMENT DATES" SHALL MEAN THE DEFERRED
PORTION PAYMENT DATES SPECIFIED ON SCHEDULE 6 TO THE PARTICIPATION AGREEMENT
FOR A RELATED BASIC GROUP OF UNITS.]

         "Determination Date" shall mean the 28th day of any calendar month.

         "Early Purchase Date" shall mean the early purchase date specified on
Schedule 6 to the Participation Agreement for a related Basic Group of Units.

         "Early Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 6 to the
Participation Agreement for the Basic Group to which such Unit belongs and the
Equipment Cost for such Unit.

         "Equipment" shall mean collectively those items of railroad rolling
stock described in the Lease Supplements and the Indenture Supplements,
together with any and all accessions, additions, improvements and replacements
from time to time incorporated or installed in any item thereof which are the
property of the Owner Trustee pursuant to the terms of a Bill of Sale or the
Lease, and "Unit" shall mean individually the various items thereof.




                                     -3-
<PAGE>   60
         "Equipment Cost" shall mean, for each Unit, the purchase price
therefor paid by the Owner Trustee to the Lessee pursuant to Section 2 of the
Participation Agreement and as set forth in Schedule 1 to the Participation
Agreement with respect to such Unit.  Notwithstanding anything in the Operative
Agreements to the contrary, the Equipment Cost for any Replacement Unit shall
be deemed to be the Equipment Cost or deemed Equipment Cost of the Unit it
replaced.

         "Equipment Notes" shall mean the Equipment Notes, each to be
substantially in the form therefor set forth in Section 2.01 of the Indenture,
issued by the Owner Trustee pursuant to Section 2.02 of the Indenture, and
authenticated by the Indenture Trustee, in principal amounts, maturities and
bearing interest at the rates and payable as provided in Section 2.02 of the
Indenture and secured as provided in the Granting Clause of the Indenture, and
shall include any Equipment Notes issued in exchange therefor or replacement
thereof pursuant to Section 2.07 or 2.08 of the Indenture.  A "related"
Equipment Note, when used with respect to any Unit or Units of Equipment, shall
mean one of the Equipment Notes issued with respect to the Lease Supplement
under which such Unit or Units of Equipment is or are leased.

         "ERISA" shall mean the Employee Retirement Income Security Act of
1974, as amended from time to time, or any successor law.

         "Event of Loss" shall have the meaning specified in Section 11.1 of
the Lease.

         "Excepted Property" shall mean (i) all indemnity payments (including,
without limitation, payments pursuant to Section 7 of the Participation
Agreement and payments under the Tax Indemnity Agreement) to which the Owner
Participant, the Owner Trustee, as trustee or in its individual capacity, or
any of their respective successors, permitted assigns, directors, officers,
employees, servants and agents is entitled pursuant to the Operative
Agreements, (ii) any right, title or interest of the Owner Trustee, as trustee
or in its individual capacity, or the Owner Participant to any payment which by
the terms of Section 17 of the Lease or any corresponding payment under Section
3.3 of the Lease shall be payable to or on behalf of the Owner Trustee, as
trustee or in its individual capacity, or to the Owner Participant, as the case
may be, (iii) any insurance proceeds payable under insurance maintained by the
Owner Trustee, as trustee or in its individual capacity, or the Owner
Participant pursuant to Section 12.5 of the Lease, (iv) any insurance proceeds
payable to or on behalf of the Owner Trustee, as trustee or in its individual
capacity, or to the Owner Participant, under any public liability insurance
maintained by Lessee pursuant to Section 12 of the Lease (which shall include
the amount of any self-insured retention paid by the Lessee) or by any other
Person, (v) Transaction Costs or other amounts or expenses paid or payable to,
or for the benefit of Owner Trustee, as trustee or in its individual capacity,
or Owner Participant pursuant to the Participation Agreement or the Trust
Agreement, (vi) all right, title and interest of Owner Participant or Owner
Trustee, as trustee or in its individual capacity, in or relating to any
portion of the Units and any other property (tangible or intangible), rights,
titles or interests to the extent any of the foregoing has been released from
the Lien of the Indenture pursuant to the terms thereof, (vii) upon termination
of the Indenture pursuant to the terms thereof with respect to any Unit, all
remaining amounts which shall have been paid or are




                                     -4-
<PAGE>   61
payable by Lessee and calculated on the basis of Stipulated Loss Value, (viii)
any rights of the Owner Participant or the Owner Trustee, as trustee and in its
individual capacity, to demand, collect, sue for, or otherwise receive and
enforce payment of the foregoing amounts, (ix) any amount payable to the Owner
Participant by any Transferee as the purchase price of the Owner Participant's
interest in the Trust Estate in compliance with the terms of the Participation
Agreement and the Trust Agreement and (x) the respective rights of the Owner
Trustee, as trustee and in its individual capacity, or the Owner Participant to
the proceeds of and interest on the foregoing.

         "Fair Market Renewal Term" shall have the meaning specified in Section
22.4 of the Lease.

         "Fair Market Rental Value" or "Fair Market Sales Value" with respect
to any Unit of Equipment shall mean the cash rent or cash price obtainable for
such Unit in an arm's length lease or sale between an informed and willing
lessee or purchaser under no compulsion to lease or purchase, as the case may
be, and an informed and willing lessor or seller, under no compulsion to lease
or sell, as the case may be, as the same shall be specified by agreement
between Lessor and Lessee.  If the parties are unable to agree upon a Fair
Market Rental Value and/or a Fair Market Sales Value within 30 days after
delivery of notice by Lessee pursuant to Section 22.2 of the Lease, or
otherwise where such determination is required, within a reasonable period of
time, such value shall be determined by appraisal.  Lessee will within 15 days
after such 30-day period provide Lessor the name of an appraiser that would be
satisfactory to Lessee, and Lessor and Lessee will consult with the intent of
selecting a mutually acceptable appraiser.  If a mutually acceptable appraiser
is selected, the Fair Market Rental Value or the Fair Market Sales Value, as
the case may be, shall be determined by such appraiser and Lessee shall bear
the cost thereof.  If Lessee and Lessor are unable to agree upon a single
appraiser within such 15-day period, two independent qualified appraisers, one
chosen by Lessee and one chosen by Lessor shall jointly determine such value
and Lessor shall bear the cost of the appraiser selected by Lessor and Lessee
shall bear the cost of the appraiser selected by Lessee.  If such appraisers
cannot agree on the amount of such value within 15 days of appointment, one
independent qualified appraiser shall be chosen by the American Arbitration
Association.  All three appraisers shall make a determination within a period
of 15 days following appointment, and shall promptly communicate such
determination in writing to Lessor and Lessee.  If there shall be a panel of
three appraisers, the three appraisals shall be averaged and such average shall
be the Fair Market Rental Value or Fair Market Sales Value, as the case may be.
The determination made shall be conclusively binding on both the Lessor and
Lessee.  If there shall be a panel of three appraisers, Lessee and Lessor shall
equally share the cost of the third appraiser.  If such appraisal is pursuant
to Section 6.1(e) or is in connection with the exercise of remedies set forth
in Section 15 of the Lease, Lessee shall pay the costs of such appraisal.
Notwithstanding any of the foregoing, for the purposes of Section 15 of the
Lease, the Fair Market Rental Value or the Fair Market Sales Value, as the case
may be, shall be zero with respect to any Unit if Lessor is unable to recover
possession of such Unit in accordance with the terms of paragraph (b) of
Section 15.1 of the Lease.




                                     -5-
<PAGE>   62
         "Final Prospectus" shall mean the prospectus supplement relating to
the Pass Through Certificates that was first filed pursuant to Rule 424(b)
promulgated pursuant to the Securities Act of 1933, as amended, together with
the Basic Prospectus.

         "Fixed Rate Renewal Term" shall have the meaning specified in Section
22.4(a) of the Lease.

         "FRA" shall mean the Federal Railroad Administration or any successor
thereto.

         "Functional Group" shall mean each and all of the various groups of
Units so designated in Schedule 1 to the Participation Agreement.

         "Hazardous Substances" shall mean any hazardous or toxic substances,
materials or wastes, including, but not limited to, those substances,
materials, and wastes listed in the United States Department of Transportation
Hazardous Materials Table (49 CFR 172.101) or by the Environmental Protection
Agency as hazardous substances (40 CFR part 302) and amendments thereto, or
such substances, materials and wastes which are or become regulated under any
applicable local, state or federal law or the equivalent under applicable
foreign laws including, without limitation, any materials, waste or substance
which is (a) petroleum, (b) asbestos, (c) polychlorinated biphenyls, (d)
defined as a "hazardous material," "hazardous substance" or "hazardous waste"
under applicable local, state or federal law or the equivalent under applicable
foreign laws, (e) designated as a "hazardous substance" pursuant to Section 311
of the Clean Water Act, (f) defined as "hazardous waste" pursuant to Section
1004 of the Resource Conservation and Recovery Act, or (g) defined as
"hazardous substances" pursuant to Section 101 of the Comprehensive
Environmental Response, Compensation, and Liability Act.

         "Income Tax" shall have the meaning specified in Section 7.1(l) of the
Participation Agreement.

         "Indemnified Person" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Indenture" or "Trust Indenture" shall mean the Trust Indenture and
Security Agreement (GATC Trust No. 96-1), dated as of August 28, 1996 between
the Owner Trustee, in the capacities described therein, and the Indenture
Trustee.  The term "Indenture" shall include, except where the context
otherwise requires, each Indenture Supplement entered into pursuant to the
terms of the Indenture.

         "Indenture Default" shall mean an Indenture Event of Default or an
event which with notice or the lapse of time or both would become an Indenture
Event of Default.

         "Indenture Estate" shall have the meaning specified in the Granting
Clause of the Indenture.





                                     -6-
<PAGE>   63
         "Indenture Event of Default" shall have the meaning specified in
Section 4.01 of the Indenture.

         "Indenture Investment" shall mean any obligation issued or guaranteed
by the United States of America or any of its agencies for the payment of which
the full faith and credit of the United States of America is pledged.

         "Indenture Supplement" shall mean an Indenture Supplement (GATC Trust
No. 96-1) dated the Closing Date or the date that any Replacement Unit is
subjected to the lien and security interest of the Indenture, substantially in
the form of Exhibit A to the Indenture, between the Owner Trustee, in the
capacities described therein, and the Indenture Trustee, covering the Units
delivered on the Closing Date or such Replacement Unit, as the case may be.  A
"related" Indenture Supplement, when used with respect to any Unit or Units of
Equipment, shall mean the Indenture Supplement under which such Unit or Units
of Equipment is or are included in the Indenture Estate.

         "Indenture Trustee" shall mean The First National Bank of Chicago, a
national banking association, as trustee under the Indenture and its successors
thereunder.

         "Indenture Trustee Agreements" shall mean the Operative Agreements to
which the Indenture Trustee is or will be a party.

         "Interchange Rules" shall mean the interchange rules or supplements
thereto of the Mechanical Division of the Association of American Railroads, as
the same may be in effect from time to time.

         "Investment Banker" shall mean an independent investment banking
institution of national standing appointed by Lessee or, if the Indenture
Trustee does not receive notice of such appointment at least ten days prior to
a scheduled prepayment date or if a Lease Event of Default under the applicable
Lease shall have occurred and be continuing, appointed by the Indenture
Trustee.

         "Late Rate" shall mean the lesser of 2% over the Debt Rate and the
maximum interest rate from time to time permitted by law.

         "Lease" or "Lease Agreement" or "Equipment Lease" shall mean the
Equipment Lease Agreement (GATC Trust No. 96- 1), relating to the Equipment,
dated as of August 28, 1996, between the Owner Trustee, in the capacities
described therein, as Lessor, and the Lessee.  The term "Lease" shall, except
where the context otherwise requires, include each Lease Supplement entered
into pursuant to the terms of the Lease.

         "Lease Default" shall mean a Lease Event of Default or an event which
with notice or lapse of time or both would become a Lease Event of Default.





                                     -7-
<PAGE>   64
         "Lease Event of Default" shall mean a Lease Event of Default under the
Lease as specified in Section 14 thereof.

         "Lease Supplement" shall mean a Lease Supplement (GATC Trust No.
96-1), dated the Closing Date or the date that any Replacement Unit is
subjected to the Lease, substantially in the form of Exhibit A to the Lease,
between the Lessor and the Lessee, covering the Units delivered on the Closing
Date or such Replacement Unit, as the case may be.  A "related" Lease
Supplement, when used with respect to any Unit or Units of Equipment, shall
mean the Lease Supplement under which such Unit or Units of Equipment is or are
leased.

         "Lease Term" shall mean, with respect to any Unit, the Basic Term
applicable to such Unit and any Renewal Term applicable to such Unit then in
effect.

         "Lessee" shall mean General American Transportation Corporation, a New
York corporation, and its successors and permitted assigns.

         "Lessee Agreements" shall mean the Operative Agreements to which
Lessee is or will be a party.

         "Lessor" shall have the meaning specified in the recitals to the
Lease.

         "Lessor's Liens" means any Lien affecting, on or in respect of the
Equipment, the Lease or the Trust Estate arising as a result of (i) claims
against Lessor (in its individual capacity or as Owner Trustee) or the Owner
Participant, not related to the transactions contemplated by the Operative
Agreements, or (ii) acts or omissions of the Lessor (in its individual capacity
or as Owner Trustee) or the Owner Participant not related to the transactions
contemplated by the Operative Agreements or in breach of any covenant or
agreement of such Person set forth in any of the Operative Agreements, or (iii)
taxes imposed against the Lessor (in its individual capacity or as Owner
Trustee) or the Owner Participant or the Trust Estate which are not indemnified
against by the Lessee pursuant to the Participation Agreement or under the Tax
Indemnity Agreement.

         "Lien" shall mean any mortgage, pledge, security interest, lien,
encumbrance, lease, disposition of title or other charge of any kind on
property.

         "Limited Use Property" shall have the meaning set forth in Rev. Proc.
76-30, 1976-2 C.B. 647.

         "Loan Participant" shall mean and include each registered holder from
time to time of an Equipment Note issued under the Indenture, including, so
long as it holds any Equipment Notes issued thereunder, the Pass Through
Trustee under the Pass Through Trust Agreement.

         "Majority In Interest" as of a particular date of determination shall
mean with respect to any action or decision of the holders of the Equipment
Notes, the holders of more than 50% in





                                     -8-
<PAGE>   65
aggregate unpaid principal amount of the Equipment Notes, if any, then
outstanding which are affected by such decision or action, excluding any
Equipment Notes held by the Owner Participant or the Lessee or an Affiliate of
the Owner Participant or the Lessee unless all Equipment Notes are so held.

         "Make-Whole Amount" shall mean, with respect to the principal amount
of any Equipment Note to be prepaid on any prepayment date, the amount which
the Investment Banker determines as of the third Business Day prior to such
prepayment date to equal the product obtained by multiplying (a) the excess, if
any, of (i) the sum of the present values of all the remaining scheduled
payments of principal and interest from the prepayment date to maturity of such
Equipment Note, discounted semi-annually on each August 28 and February 28 at a
rate equal to the Treasury Rate plus 0.5%, based on a 360-day year of twelve
30-day months, over (ii) the aggregate unpaid principal amount of such
Equipment Note plus any accrued but unpaid interest thereon by (b) a fraction
the numerator of which shall be the principal amount of such Equipment Note to
be prepaid on such prepayment date and the denominator of which shall be the
aggregate unpaid principal amount of such Equipment Note; provided that the
aggregate unpaid principal amount of such Equipment Note for the purpose of
clause (a)(ii) and (b) of this definition shall be determined after deducting
the principal installment, if any, due on such prepayment date.

         "Modification" shall have the meaning specified in Section 9.2 of the
Lease.

         "Net Economic Return" shall mean the pattern of earnings within a 10%
variance during any calendar year, net after-tax book yield and total after-tax
cash flow [AMSOUTH: (BUT NOT THE PATTERN OF EARNINGS)] expected by the original
Owner Participant with respect to the Equipment (both through the Early
Purchase Date and the Basic Term Expiration Date), utilizing the multiple
investment sinking fund method of analysis and the same assumptions as used by
such Owner Participant in making the computations of Basic Rent, Stipulated
Loss Value, Termination Value, Basic Term Purchase Price and Early Purchase
Price initially set forth in Schedules 3, 4, 6 and 7 to the Participation
Agreement.

         "Non-Severable Modification" shall mean any Modification that is not
readily removable without impairing the value, utility or remaining useful life
of the Equipment or any Unit immediately prior to removal of such modification,
other than in a de minimis nature.

         "Officer's Certificate" shall mean a certificate signed (i) in the
case of a corporation by the President, any Vice President, the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary of such
corporation, (ii) in the case of a partnership by the Chairman of the Board,
the President or any Vice President, the Treasurer or an Assistant Treasurer of
a corporate general partner, and (iii) in the case of a commercial bank or
trust company, the Chairman or Vice Chairman of the Executive Committee or the
Treasurer, any Trust Officer, any Vice President, any Executive or Senior or
Second or Assistant Vice President, or any other officer or assistant officer
customarily performing the functions similar to those performed by the persons
who at the time shall be such officers, or to whom any corporate trust matter
is referred because of his knowledge of and familiarity with the particular
subject.




                                     -9-
<PAGE>   66
         "Operative Agreements" shall mean the Participation Agreement, the
Bill of Sale, the Trust Agreement, the Pass Through Trust Agreement, the Pass
Through Trust Supplements, the Pass Through Certificates, the Equipment Notes,
the Lease, the Lease Supplements, the Indenture, the Indenture Supplements, the
Tax Indemnity Agreement and the Underwriting Agreement.

         "Outside Fixed Renewal Date" shall have the meaning specified in
Section 22.4(a) of the Lease.

         "Owner Participant" shall mean Dreyfus Service Corporation, a New York
corporation [AMSOUTH LEASING CORPORATION, AN ALABAMA BANKING CORPORATION], and
its successors and permitted assigns.

         "Owner Participant Agreements" shall mean the Operative Agreements to
which the Owner Participant is or will be a party.

         "Owner Trustee" shall mean First Security Bank, N.A., a national
banking association, not in its individual capacity but solely as Owner Trustee
under the Trust Agreement and its successors thereunder.

         "Owner Trustee Agreements" shall mean the Operative Agreements to
which the Owner Trustee, either in its individual or fiduciary capacity, is or
will be a party.

         "Parent" means GATX Corporation, a New York corporation, and
its successors and assigns.

         "Participants" shall mean the Loan Participant and the Owner
Participant.

         "Participation Agreement" shall mean the Participation Agreement (GATC
Trust No. 96-1) dated as of August 28, 1996, among the Lessee, the Pass Through
Trustee, the Owner Participant, the Owner Trustee and the Indenture Trustee.

         "Pass Through Certificates" shall mean the Pass Through Certificates
issued pursuant to each of the Pass Through Trust Supplements and the Pass
Through Trust Agreement.

         "Pass Through Trust Agreement" shall mean the Pass Through Trust
Agreement, dated as of August 1, 1992, between the Lessee and the Pass Through
Trustee.

         "Pass Through Trust Supplement" shall mean either of Trust Supplement
No. 6 dated as of August 28, 1996 or Trust Supplement No. 7 dated as of August
28, 1996, each between the Lessee and the Pass Through Trustee, each of which
supplements the Pass Through Trust Agreement (i) by creating a separate trust
for the holders of certain Pass Through Certificates, (ii) by authorizing the
issuance of such Pass Through Certificates and (iii) by establishing the terms
of such Pass Through Certificates.




                                     -10-
<PAGE>   67
         "Pass Through Trustee" shall mean The First National Bank of Chicago,
a national banking association, in its capacity as trustee under the Pass
Through Trust Agreement, as supplemented by the Pass Through Trust Supplements,
and each other person which may from time to time be acting as successor
trustee under the Pass Through Trust Agreement, as supplemented by the Pass
Through Trust Supplement.

         "Pass Through Trustee Agreements" shall mean the Operative Agreements
to which the Pass Through Trustee is or will be a party.

         "Permitted Liens" with respect to the Equipment and each Unit thereof
shall mean: (i) the interests of the Lessee and the Owner Trustee under the
Lease and the Lease Supplements; (ii) the interest of the Lessee and any
sublessee as provided in any sublease permitted pursuant to Section 8.3 of the
Lease; (iii) any Liens thereon for taxes, assessments, levies, fees and other
governmental and similar charges not due and payable or the amount or validity
of which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (iv) any Liens of mechanics, suppliers, materialmen, laborers,
employees, repairmen and other like Liens arising in the ordinary course of
Lessee's (or if a sublease is then in effect, any sublessee's) business
securing obligations which are not due and payable or the amount or validity of
which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (v) the Lien and security interest granted to the Indenture
Trustee under and pursuant to the Indenture, and the respective rights of the
Loan Participant, the Indenture Trustee, the Owner Participant and the Owner
Trustee under the Operative Agreements; (vi) Liens arising out of any judgment
or award against the Lessee (or any sublessee permitted pursuant to Section 8.3
of the Lease) with respect to which an appeal or proceeding for review is being
presented in good faith and for the payment of which adequate reserves have
been provided as required by generally accepted accounting principles or other
appropriate provisions have been made and with respect to which there shall
have been secured a stay of execution pending such appeal or proceeding for
review and there exists no material risk of sale, forfeiture, loss, or loss of
or interference with the use or possession of any Unit or any interest therein
or interference with the payment of Rent, and (vii) salvage rights of insurers
under insurance policies maintained pursuant to Section 12 of the Lease.

         "Permitted Subleases" shall have the meaning specified in Section 8.3 
of the Lease.

         "Person" shall mean an individual, partnership, limited liability
company, corporation, trust, association or unincorporated organization, and a
government or agency or political subdivision thereof.

         "Preliminary Final Prospectus" shall mean any preliminary prospectus
supplement to the Basic Prospectus which describes the Pass Through
Certificates and the offering thereof and is used prior to the filing of the
Final Prospectus, together with the Basic Prospectus.




                                     -11-
<PAGE>   68
         "Premium Termination Date" shall mean (i) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. I, August 28,
20__, (ii) in the case of the Series of Equipment Notes designated as Series B
for Lease Supplement No. I, August 28, 20__, (iii) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. II, August 28,
20__, and (iv) in the case of the Series of Equipment Notes designated as
Series B for Lease Supplement No. II August 28, 20__.

         "Pricing Date" shall mean the date on which the Underwriting Agreement
is executed by the Lessee and the Underwriters.

         "Refunding Date" shall have the meaning specified in Section 10.2(a)
of the Participation Agreement.

         "Registration Statement" shall mean the registration statement filed
by the Lessee (File Number 33-64697), including incorporated documents,
exhibits and financial statements, as amended at the time of the Closing Date,
including any post-effective amendment thereto which has become effective prior
to the Closing Date.

         "Related Indemnitee Group" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Related Transaction" means the additional leveraged lease transaction
with respect to which the Pass Through Trustee has agreed to acquire the
equipment notes to be issued pursuant to the participation agreement dated as
of August 28, 1996 among the Lessee, the Pass Through Trustee, AmSouth Leasing
Corporation, the Owner Trustee and the Indenture Trustee.

         "Remaining Weighted Average Life" shall mean, with respect to any date
of prepayment or any date of determination of any Equipment Note, the number of
days equal to the quotient obtained by dividing (a) the sum of the products
obtained by multiplying (i) the amount of each then remaining principal payment
on such Equipment Note by (ii) the number of days from and including the
prepayment date or date of determination to but excluding the scheduled payment
date of such principal payment by (b) the unpaid principal amount of such
Equipment Note.

         "Renewal Term" shall mean, with respect to any Unit, any term in
respect of which the Lessee shall have exercised its option to renew the Lease
for such Unit pursuant to Section 22.4 thereof, including any Fixed Rate
Renewal Term or Fair Market Renewal Term.

         "Rent" shall mean all Basic Rent and Supplemental Rent.

         "Rent Payment Date" or "Payment Date" shall mean each August 28 and
February 28 of each year occurring during the Lease Term, commencing February
28, 1997, provided that if any such date shall not be a Business Day, then
"Rent Payment Date" or "Payment Date" shall mean the next succeeding Business
Day.





                                     -12-
<PAGE>   69
         "Replacement Unit" shall mean a covered hopper car or tank car, as the
case may be, which shall have been leased under the Lease pursuant to Section
11.4 of the Lease.

         "Required Modification" shall have the meaning specified in Section 
9.1 of the Lease.

         "Responsible Officer" shall mean, with respect to the subject matter
of any covenant, agreement or obligation of any party contained in any
Operative Agreement, the President, or any Vice President, Assistant Vice
President, Treasurer, Assistant Treasurer or other officer, who in the normal
performance of his operational responsibility would have knowledge of such
matters and the requirements with respect thereto.

         "Scheduled Closing Date" shall have the meaning specified in Section
2.7 of the Participation Agreement.

         "Security" shall have the same meaning as in Section 2(1) of the
Securities Act of 1933, as amended.

         "Series" shall mean each of the two series of Equipment Notes for each
Lease Supplement so designated in Exhibit B to the Indenture.

         "Severable Modification" shall mean any Modification that is readily
removable without causing material damage to the Equipment or any Unit and
without diminishing the value, utility or useful life of such Unit below the
value, utility or useful life of such Unit immediately prior to such
Modification, assuming that such Unit was then in the condition required to be
maintained by the terms of the Lease, other than in a de minimis nature.

         "Special Purchase Defeasance" shall mean, with respect to any election
by Lessee to purchase Units under Section 22.1 or 22.3 of the Lease, the
deposit by Lessee with the Indenture Trustee prior to the date as of which
Lessor shall have declared the Lease to be in default as a result of a Lease
Event of Default under Section 14(c), 14(d), 14(e), 14(f) or 14(i) of the Lease
(in circumstances where such Lease Event of Default occurs after the date of
Lessee's notice to purchase under Sections 22.1 or 22.3 but before the Early
Purchase Date or the expiration of the Basic Term or any Renewal Term, as
applicable), of an amount sufficient to pay (i) the Early Purchase Price,
together with all other amounts due and owing by the Lessee under the Operative
Agreements, with respect to those Units which Lessee has elected to purchase on
the Early Purchase Date under Section 22.1 of the Lease, or (ii) the Basic Term
Purchase Price or Fair Market Sales Value, as the case may be, together with
all other amounts due and owing by the Lessee under the Operative Agreements,
with respect to those Units which Lessee has elected to purchase at the
expiration of the Basic Term or any Renewal Term, as applicable, under Section
22.3 of the Lease.  All amounts deposited by Lessee with the Indenture Trustee
in connection with a Special Purchase Defeasance shall be held and invested by
the Indenture Trustee in accordance with Section 6.04(b) of the Indenture
pending consummation of the purchase of the related Units on the Early Purchase
Date or upon the expiration of the Basic Term or the related Renewal Term, as
applicable.




                                     -13-
<PAGE>   70
         "Specified Investments" shall mean (i) direct obligations of the
United States of America and agencies thereof for which the full faith and
credit of the United States is pledged, (ii) obligations fully guaranteed by
the United States of America, (iii) certificates of deposit issued by, or
bankers' acceptances of, or time deposits with, any bank, trust company or
national banking association incorporated or doing business under the laws of
the United States of America or one of the States thereof having combined
capital and surplus and retained earnings of at least $500,000,000 (including
the Indenture Trustee or Owner Trustee if such conditions are met), and (iv)
repurchase agreements with any financial institution having a combined capital
and surplus of at least $750,000,000 fully collateralized by obligations of the
type described in clauses (i) and (iii) above; provided that if all of the
above investments are unavailable, the entire amount to be invested may be used
to purchase Federal funds from an entity described in (iii) above; and provided
further that no investment shall be eligible as a "Specified Investment" unless
the final maturity or date of return of such investment is 91 days or less from
the date of purchase thereof.

         "STB" shall mean the Surface Transportation Board of the United States
Department of Transportation or any successor thereto.

         "Stipulated Loss Value" for any Unit as of any date of determination
shall mean the amount determined by multiplying the Equipment Cost for such
Unit by the percentage set forth in Schedule 4 to the Participation Agreement
opposite the Rent Payment Date or the Determination Date, as applicable, on
which such Stipulated Loss Value is being determined for the Basic Group to
which such Unit belongs; provided that during any Renewal Term, "Stipulated
Loss Value" shall be determined as provided in Section 22.6 of the Lease.
Anything contained in the Lease or in the Participation Agreement to the
contrary notwithstanding, Stipulated Loss Value for such Unit (both before and
after any adjustment pursuant to Section 2.6 of the Participation Agreement)
will, under any circumstances and in any event, be an amount which, together
with any other amounts required to be paid by Lessee under the Lease in
connection with an Event of Loss, will be at least sufficient to pay in full as
of the date of payment thereof the aggregate unpaid principal of the Equipment
Notes issued in respect of such Unit, together with all unpaid interest and
Make-Whole Amount, if any, thereon accrued to the date on which such amount is
paid in accordance with the terms hereof and all other amounts then due to the
holders of the Equipment Notes.

         "Storage Period" shall have the meaning specified in Section 6.1(c)(i)
of the Lease.

         "Subsidiary" of any Person shall mean any corporation, association, or
other business entity of which more than 50% (by number of votes) of the voting
stock at the time outstanding shall at the time be owned, directly or
indirectly, by such Person or by any other corporation, association or trust
which is itself a Subsidiary within the meaning of this definition, or
collectively by such Person and any one or more such Subsidiaries.

         "Supplemental Rent" shall mean all amounts, liabilities and
obligations (other than Basic Rent) which the Lessee is obligated to pay under
the Operative Agreements to or on behalf of




                                     -14-
<PAGE>   71
any of the other parties thereto, including, but not limited to, Termination
Value and Stipulated Loss Value payments.

         "Taxes" shall have the meaning specified in Section 7.1(b) of the
Participation Agreement.

         "Tax Indemnitee" shall have the meaning specified in Section 7.1 of
the Lease.

         "Tax Indemnity Agreement" shall mean the Tax Indemnity Agreement dated
as of August 28, 1996 (GATC Trust No. 96-1) between the Lessee and the Owner
Participant.

         "Terminated Units" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Date" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Value" for any Unit as of any date of determination shall
mean the amount determined by multiplying the Equipment Cost for such Unit by
the percentage set forth in Schedule 4 to the Participation Agreement opposite
the Rent Payment Date or the Determination Date, as applicable, on which such
Termination Value is being determined for the Basic Group to which such Unit
belongs; provided that during any Renewal Term, "Termination Value" shall be
determined as provided in Section 22.6 of the Lease.  Anything contained in the
Lease or in the Participation Agreement to the contrary notwithstanding,
Termination Value for such Unit (both before and after any adjustment pursuant
to Section 2.6 of the Participation Agreement) will, under any circumstances
and in any event, be an amount which, together with any other amounts required
to be paid by Lessee under the Lease in connection with such termination, will
be at least sufficient to pay in full as of the date of payment thereof the
aggregate unpaid principal of the Equipment Notes issued in respect of such
Unit, together with all unpaid interest and Make-Whole Amount, if any, thereon
accrued to the date on which such amount is paid in accordance with the terms
thereof and all other amounts then due to the holders of the Equipment Notes.

         "Total Equipment Cost" shall mean the sum of the Equipment Costs for
each Unit.

         "Transaction Costs" shall have the meaning specified in Section 2.5(a)
of the Participation Agreement.

         "Transferee" shall have the meaning specified in Section 6.1(a) of the
Participation Agreement.

         "Treasury Rate" shall mean with respect to prepayment of each
Equipment Note, a per annum rate (expressed as a semiannual equivalent and as a
decimal and, in the case of United States Treasury bills, converted to a bond
equivalent yield), determined to be the per annum rate equal to the semiannual
yield to maturity for United States Treasury securities maturing on the Average
Life Date of such Equipment Note, as determined by interpolation between the
most recent weekly average yields to maturity for two series of United States
Treasury securities, (A)




                                     -15-
<PAGE>   72
one maturing as close as possible to, but earlier than, the Average Life Date
of such Equipment Note and (B) the other maturing as close as possible to, but
later than, the Average Life Date of such Equipment Note, in each case as
published in the most recent H.15(519) (or, if a weekly average yield to
maturity for United States Treasury securities maturing on the Average Life
Date of such Equipment Note is reported in the most recent H.15(519), as
published in H.15(519)).  H.15(519) means "Statistical Release H.15(519),
Selected Interest Rates," or any successor publication, published by the Board
of Governors of the Federal Reserve System.  The most recent H.15(519) means
the latest H.15(519) which is published prior to the close of business on the
third Business Day preceding the scheduled prepayment date.

         "Trust" shall have the meaning specified in the Trust Agreement.

         "Trust Agreement" shall mean that certain Trust Agreement (GATC Trust
No. 96-1), dated as of August 28, 1996, between the Owner Participant and the
Owner Trustee.

         "Trust Estate" shall have the meaning set forth in Section 2.2 of the 
Trust Agreement.

         "Trustee" shall mean each of the Owner Trustee, the Indenture Trustee
or the Pass Through Trustee and "Trustees" shall mean the Owner Trustee,
Indenture Trustee and the Pass Through Trustee, collectively.

         "Underwriters" shall mean Morgan Stanley & Co. Incorporated and Salomon
Brothers Inc.

         "Underwriting Agreement" shall mean that certain Underwriting
Agreement between the Lessee and the Underwriters, pertaining to the sale of
the Pass Through Certificates.

         "Unit" shall mean each unit or item of Equipment.




                                     -16-

<PAGE>   1

                                                                     EXHIBIT 4.5

                            PARTICIPATION AGREEMENT

                             (GATC Trust No. 96-1)

                          Dated as of August 28, 1996


                                     Among


                  General American Transportation Corporation,
                                   as Lessee


                           First Security Bank, N.A.,
                                as Owner Trustee


           Dreyfus Service Corporation [AMSOUTH LEASING CORPORATION],
                              as Owner Participant


                      The First National Bank of Chicago,
                              as Indenture Trustee


                                      And


                      The First National Bank of Chicago,
                            as Pass Through Trustee

                         Covered Hoppers and Tank Cars





<PAGE>   2
                              Table of Contents

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
||
<S>               <C>                                                                                                  <C>
SECTION 1.        DEFINITIONS; INTERPRETATION OF THIS AGREEMENT.  . . . . . . . . . . . . . . . . . . . . . . . . . .   2

SECTION 2.        SALE AND PURCHASE; PARTICIPATION IN EQUIPMENT COST; CLOSING; TRANSACTION COSTS.   . . . . . . . . .   2
                  Section 2.1.       Sale and Purchase  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
                  Section 2.2.       Participation in Equipment Cost  . . . . . . . . . . . . . . . . . . . . . . . .   3
                  Section 2.3.       Closing Date; Procedure for Participation  . . . . . . . . . . . . . . . . . . .   3
                  Section 2.4.       Owner Participant's Instructions to the Owner Trustee; Satisfaction of
                                     Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                  Section 2.5.       Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                  Section 2.6.       Calculation of Adjustments to Basic Rent, Stipulated Loss Value
                                     and Termination Value; Confirmation and Verification . . . . . . . . . . . . . .   8
                  Section 2.7.       Postponement of Closing Date . . . . . . . . . . . . . . . . . . . . . . . . . .  10

SECTION 3.        REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
                  Section 3.1.       Representations and Warranties of the Owner Trustee  . . . . . . . . . . . . . .  12
                  Section 3.2.       Representations and Warranties of the Lessee . . . . . . . . . . . . . . . . . .  14
                  Section 3.3.       Representations and Warranties of the Indenture Trustee  . . . . . . . . . . . .  18
                  Section 3.4.       Representations, Warranties and Covenants Regarding Beneficial
                                     Interest and Equipment Notes . . . . . . . . . . . . . . . . . . . . . . . . . .  19
                  Section 3.5.       Representations and Warranties of the Pass Through Trustee . . . . . . . . . . .  20
                  Section 3.6.       Representations and Warranties of the Owner Participant  . . . . . . . . . . . .  21
                  Section 3.7.       Opinion Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23

SECTION 4.        CLOSING CONDITIONS.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
                  Section 4.1.       Conditions Precedent to Investment by Each Participant . . . . . . . . . . . . .  23
                  Section 4.2.       Additional Conditions Precedent to Investment by Pass Through
                                     Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                  Section 4.3.       Additional Conditions Precedent to Investment by Owner
                                     Participant  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                  Section 4.4.       Conditions Precedent to the Obligation of the Lessee . . . . . . . . . . . . . .  28
</TABLE>




                                     -i-
<PAGE>   3
<TABLE>                                             
<CAPTION>                                                                 
                                                                                                                     Page
                                                                                                                     ----
<S>               <C>                                                                                                  <C>
SECTION 5.        FINANCIAL AND OTHER REPORTS OF THE LESSEE   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29

SECTION 6.        CERTAIN COVENANTS OF THE PARTICIPANTS, THE TRUSTEES AND THE LESSEE  . . . . . . . . . . . . . . . .  30
                  Section 6.1.       Restrictions on Transfer of Beneficial Interest  . . . . . . . . . . . . . . . .  30
                  Section 6.2.       Lessor's Liens Attributable to the Owner Participant . . . . . . . . . . . . . .  33
                  Section 6.3.       Lessor's Liens Attributable to the Owner Trustee . . . . . . . . . . . . . . . .  34
                  Section 6.4.       Liens Created by the Indenture Trustee and the Loan Participant  . . . . . . . .  34
                  Section 6.5.       Covenants of Owner Trustee, Owner Participant and Indenture Trustee  . . . . . .  35
                  Section 6.6.       Amendments to Operative Agreements . . . . . . . . . . . . . . . . . . . . . . .  35
                  Section 6.7.       Covenant of the Lessee . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                  Section 6.8.       Merger Covenant  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                  Section 6.9.       Lessee's Purchase in Certain Circumstances . . . . . . . . . . . . . . . . . . .  37
                  Section 6.10.      Owner Participant an Affiliate of Lessee . . . . . . . . . . . . . . . . . . . .  38
                  Section 6.11.      Corporate Existence; Place of Business . . . . . . . . . . . . . . . . . . . . .  38
                  Section 6.12.      No Impairment of Warranties  . . . . . . . . . . . . . . . . . . . . . . . . . .  38

SECTION 7.        LESSEE'S INDEMNITIES.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                  Section 7.1.       General Tax Indemnity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                  Section 7.2.       General Indemnification and Waiver of Certain Claims . . . . . . . . . . . . . .  47

SECTION 8.        LESSEE'S RIGHT OF QUIET ENJOYMENT.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51

SECTION 9.        SUCCESSOR INDENTURE TRUSTEE.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51

SECTION 10.       MISCELLANEOUS.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
                  Section 10.1.      Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
                  Section 10.2.      Refinancing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
                  Section 10.3.      Amendments and Waivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
                  Section 10.4.      Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
                  Section 10.5.      Survival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
                  Section 10.6.      No Guarantee of Debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.7.      Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.8.      Business Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.9.      Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.10.     Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.11.     Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.12.     Headings and Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . .  57
                  Section 10.13.     Limitations of Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
                  Section 10.14.     Maintenance of Non-Recourse Debt . . . . . . . . . . . . . . . . . . . . . . . .  58
</TABLE>





                                    -ii-
<PAGE>   4
<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
<S>               <C>                                                                                                  <C>
                  Section 10.15.     Ownership of and Rights in Units . . . . . . . . . . . . . . . . . . . . . . . .  59
||

EXHIBITS
- --------

Exhibit A-1       -   Insurance (Primary Liability)
Exhibit A-2       -   Insurance (Excess Liability)
Exhibit B         -   Insurance Requirements


SCHEDULES
- ---------

Schedule 1        -   Description of Equipment, Designation of Basic Groups, Designation of
                      Functional Groups, and Equipment Cost
Schedule 2        -   Commitment Percentage and Payment Information for Participants
Schedule 3        -   Schedule of Basic Rent Payments
Schedule 4        -   Schedule of Stipulated Loss Value and Termination Value
Schedule 5        -   Terms of Equipment Notes
Schedule 6        -   Early Purchase Information
Schedule 7        -   Basic Term Purchase Information
</TABLE>





                                    -iii-
<PAGE>   5
                 PARTICIPATION AGREEMENT (GATC TRUST NO. 96-1)


         This Participation Agreement (GATC Trust No. 96-1), dated as of August
28, 1996 (this "Agreement"), among (i) General American Transportation
Corporation, a New York corporation (herein, together with its successors and
assigns, called the "Lessee"), (ii) First Security Bank, N.A., a national
banking association, not in its individual capacity except as expressly stated
herein, but solely as trustee under the Trust Agreement (as hereinafter
defined) (herein in such capacity, together with its successors and assigns,
called the "Owner Trustee"), (iii) Dreyfus Service Corporation, a New York
corporation [AMSOUTH LEASING CORPORATION, AN ALABAMA BANKING CORPORATION]
(herein, together with its successors and assigns, called the "Owner
Participant"), (iv) The First National Bank of Chicago, a national banking
association, as trustee under the Indenture (as defined below) (herein in such
capacity, together with its successors and assigns, called the "Indenture
Trustee"), and (v) The First National Bank of Chicago, a national banking
association, not in its individual capacity except as expressly provided herein
but solely as Pass Through Trustee under the Pass Through Trust Agreement (as
hereinafter defined) (herein in such capacity, together with its successors and
assigns, called the "Pass Through Trustee" or the "Loan Participant"). The
Owner Participant and the Loan Participant are herein sometimes referred to
together as the "Participants".

                                  WITNESSETH:

         WHEREAS, concurrently with the execution and delivery of this
Agreement, the Owner Participant has entered into the Trust Agreement (GATC
Trust No. 96-1) pursuant to which the Owner Trustee agrees, among other things,
to hold the Trust Estate for the benefit of the Owner Participant thereunder on
the terms specified in the Trust Agreement, subject, however, to the Lien
created under the Indenture and, subject to the terms and conditions hereof, to
purchase the Units of Equipment described in Schedule 1 hereto from the Lessee
and concurrently therewith lease such Units of Equipment to the Lessee;

         WHEREAS, pursuant to the Pass Through Trust Agreement, on the Closing
Date, two grantor trusts will be created to facilitate the financing
contemplated hereby;

         WHEREAS, concurrently with the execution and delivery of this
Agreement, the Owner Trustee has entered into the Indenture with the Indenture
Trustee pursuant to which Indenture the Owner Trustee agrees, among other
things, for the benefit of the holder or holders of the Equipment Notes, to
issue to the Pass Through Trustee as Loan Participant, the Equipment Notes as
evidence of the loan made by the Loan Participant participating in the
financing of the Equipment Cost for the Equipment;

         WHEREAS, pursuant to the terms of the Trust Agreement, the Owner
Trustee is authorized and directed by the Owner Participant (i) to accept
delivery of the Bill of Sale evidencing the purchase and transfer of title of
each Unit to the Owner Trustee and (ii) to





<PAGE>   6
execute and deliver the Lease pursuant to which, subject to the terms and
conditions set forth therein, the Owner Trustee agrees to lease to the Lessee,
and the Lessee agrees to lease from the Owner Trustee, each Unit of Equipment
to be delivered on the Closing Date, such lease to be evidenced by the
execution and delivery of two Lease Supplements covering such Units;

         WHEREAS, concurrently with the execution and delivery of this
Agreement, the Lessee and the Owner Participant have entered into the Tax
Indemnity Agreement relating to the Equipment; and

         WHEREAS, the proceeds from the sale of the Equipment Notes to the Loan
Participant will be applied, together with the equity contribution made by the
Owner Participant pursuant to this Agreement, to effect the purchase of the
Equipment by the Owner Trustee contemplated hereby.

         NOW, THEREFORE, in consideration of the mutual agreements herein
contained and other good and valuable consideration, receipt of which is
acknowledged, the parties hereto agree as follows:

SECTION 1.  DEFINITIONS; INTERPRETATION OF THIS AGREEMENT.

         The capitalized terms used in this Agreement (including the foregoing
recitals) and not otherwise defined herein shall have the respective meanings
specified in Appendix A hereto, unless the context hereof shall otherwise
require.  All references to Sections, Schedules and Exhibits herein are to
Sections, Schedules and Exhibits of this Agreement unless otherwise indicated.

SECTION 2.  SALE AND PURCHASE; PARTICIPATION IN EQUIPMENT COST; CLOSING;
            TRANSACTION COSTS.

         Section 2.1.      Sale and Purchase.  Subject to the terms and
conditions hereof and on the basis of the representations and warranties set
forth herein, the Lessee agrees to sell to the Owner Trustee and the Owner
Trustee agrees to purchase from the Lessee, on the Closing Date, the Units
described in Schedule 1 as hereinafter provided, and in connection therewith,
the Owner Trustee agrees to pay to the Lessee the cost for each of the various
Units as specified in Schedule 1; provided, however, that the Owner Trustee
shall not be obligated to purchase on the Closing Date any Unit that is
destroyed, damaged, defective, in unsuitable condition or otherwise
unacceptable to the Lessee for lease pursuant to the Lease.  The Lessee shall
deliver said Units of Equipment to the Owner Trustee and the Owner Trustee
shall accept such delivery on a delivery date as more fully provided herein
(the "Closing Date"); provided that the Closing Date shall occur on or prior to
September 30, 1996.



                                      2

<PAGE>   7
         Section 2.2.      Participation in Equipment Cost.

         (a)     Equity Participation.  Subject to the terms and conditions
hereof and on the basis of the representations and warranties set forth herein,
on the Closing Date the Owner Participant agrees to participate in the payment
of the Equipment Cost for the Units delivered on the Closing Date by making an
equity investment in the beneficial ownership of such Units in the amount equal
to the product of the aggregate Equipment Cost for the Units delivered on the
Closing Date and the percentage set forth opposite the Owner Participant's name
in Schedule 2 (the Owner Participant's "Commitment").  The aggregate amount of
the Owner Participant's Commitment plus the aggregate amount of Transaction
Costs payable by the Owner Participant shall not exceed $30,750,000 [AMSOUTH:
$15,000,000].  The Owner Participant's Commitment shall be paid to the
Indenture Trustee to be held (but not as part of the Indenture Estate) and
applied on behalf of the Owner Trustee toward the payment of the Equipment Cost
for the Units as provided in Section 2.3.

         (b)     Debt Participation.  Subject to the terms and conditions
hereof and on the basis of the representations and warranties set forth herein,
on the Closing Date the Loan Participant agrees to participate in the payment
of the Equipment Cost for the Units delivered on the Closing Date by making a
secured loan, to be evidenced by the Equipment Notes, to the Owner Trustee in
the amount equal to the product of the aggregate Equipment Cost for the Units
delivered on the Closing Date and the percentage set forth opposite such Loan
Participant's name in Schedule 2 (the Loan Participant's "Commitment").  The
aggregate amount of the Loan Participant's Commitment shall not exceed
$90,000,000 [AMSOUTH: $37,000,000].  The Equipment Notes shall bear interest at
the rates set forth on Schedule 5.

         (c)     [RESERVED]

         Section 2.3.      Closing Date; Procedure for Participation.

         (a)     Notice of Closing Date.  Not later than the Pricing Date, the
Lessee shall give the Owner Participant, the Indenture Trustee, the Owner
Trustee and the Loan Participant notice (a "Notice of Delivery") by telex,
telegraph, facsimile or other form of telecommunication or telephone (to be
promptly confirmed in writing) of the Closing Date, which Notice of Delivery
shall specify in reasonable detail the number and type of Units to be delivered
on such date, the aggregate Equipment Cost of such Units, and the respective
amounts of the Owner Participant's Commitment and the Loan Participant's
Commitment required to be paid with respect to such Units.  Prior to 12:00
noon, New York City time, on the Closing Date, the Owner Participant shall make
the amount of the Owner Participant's Commitment required to be paid on the
Closing Date available to the Indenture Trustee, and immediately prior to the
delivery and acceptance of the Units specified in Section 2.3(b), the Loan
Participant shall make the amount of such Loan Participant's Commitment for the
Equipment Cost required to be paid on the Closing Date available to the
Indenture Trustee, in either case, by transferring or delivering such amounts,
in funds immediately available on the Closing Date, to the Indenture Trustee,
either




                                      3
<PAGE>   8
directly to, or for deposit in, the Indenture Trustee's account at The First
National Bank of Chicago, One First National Plaza, Suite 0126, Chicago,
Illinois 60670-0126, ABA No. 071000013, Clearing Account 48115377, for credit
to trust number 19-203567-1, Attn: J. Kinney GATC Trust No. 96-1.  The making
available by the Owner Participant of the amount of its Commitment for the
Equipment Cost shall be deemed a waiver of the Notice of Delivery by the Owner
Participant and the Owner Trustee and the making available by the Loan
Participant of the amount of its Commitment for the Equipment Cost shall be
deemed a waiver of the Notice of Delivery by the Loan Participant and the
Indenture Trustee.

         (b)     Closing.  The closing of the transactions contemplated hereby
(the "Closing") shall take place at 11:00 A.M., Chicago time, on the Closing
Date at the offices of Mayer, Brown & Platt, 190 South LaSalle Street, Chicago,
Illinois 60603 or at such other place or time as the parties hereto shall
agree.  Upon receipt by the Indenture Trustee on the Closing Date of the full
amount of the Owner Participant's Commitment and Loan Participant's Commitment
in respect of the Units delivered on the Closing Date, the Indenture Trustee on
behalf of the Owner Trustee shall, subject to the conditions set forth in
Sections 4.1 and 4.3 having been fulfilled to the satisfaction of the Owner
Participant or waived by the Owner Participant, pay to the Lessee from the
funds then held by it, in immediately available funds, an amount equal to the
Equipment Cost for the Units delivered on the Closing Date, and simultaneously
therewith, (i) the Lessee shall deliver the Units to the Owner Trustee, (ii)
the Owner Trustee shall, pursuant to the Lease, lease and deliver the Equipment
delivered on the Closing Date to the Lessee, and the Lessee, pursuant to the
Lease, shall accept delivery of the Units under the Lease, such lease, delivery
and acceptance of the Units under the Lease shall be conclusively evidenced by
the execution and delivery by the Lessee and Owner Trustee of a separate Lease
Supplement covering each Basic Group of Equipment so delivered as described in
Schedule 1, and (iii) the Owner Trustee shall execute and deliver an Equipment
Note for each Series relating to each such Lease Supplement to the Loan
Participant.  Each of the Lessee, the Owner Participant, the Owner Trustee, the
Loan Participant and the Indenture Trustee hereby agree to take all actions
required to be taken by it in connection therewith and pursuant to this Section
2.3(b).

         Section 2.4.      Owner Participant's Instructions to the Owner
Trustee; Satisfaction of Conditions.

         (a)     The Owner Participant agrees that the making available to the
Indenture Trustee of the amount of its Commitment for the Units delivered on
the Closing Date in accordance with the terms of this Section 2 shall
constitute, without further act, authorization and direction by the Owner
Participant to the Owner Trustee, subject, on the Closing Date, to the
conditions set forth in Sections 4.1 and 4.3 having been fulfilled to the
satisfaction of the Owner Participant or waived by the Owner Participant, to
take the actions specified in Section 2.1 of the Trust Agreement with respect
to the Units on the Closing Date.

         (b)     The Owner Participant agrees that the authorization by the
Owner Participant or its counsel to the Indenture Trustee to release to the
Lessee the Owner Participant's Commitment




                                      4
<PAGE>   9
with respect to the Units delivered on the Closing Date shall constitute,
without further act, notice and confirmation that all conditions to closing set
forth in Sections 4.1 and 4.3 were either met to the satisfaction of the Owner
Participant or, if not so met, were waived by it with respect to such Units.

         Section 2.5.      Expenses.

         (a)     If the Owner Participant shall have made its investment
provided for in Section 2.2 and the transactions contemplated by this Agreement
are consummated, either the Owner Participant will promptly pay, or the Owner
Trustee will promptly pay, with funds the Owner Participant hereby agrees to
pay (which, together with its Commitment, shall not exceed the amount set forth
in Section 2.2(a)) to the Owner Trustee, the following (the "Transaction
Costs") if evidenced by an invoice delivered to the Owner Participant and
approved by the Lessee within six (6) months of the Closing Date:

                 (i)       the cost of reproducing, printing and filing the
         Operative Agreements, the Equipment Notes, the Pass Through
         Certificates, the Offering Memorandum relating to the Pass Through
         Certificates, the Registration Statement, the Basic Prospectus, the
         Preliminary Final Prospectus, the Final Prospectus and the
         Underwriting Agreement and all amendments and supplements to the
         foregoing, including all costs and fees in connection with filing the
         Registration Statement and the initial filing and recording of the
         Lease, the Indenture and any other document required to be filed or
         recorded pursuant to the provisions hereof or of any other Operative
         Agreement and the fees and expenses of the rating agencies in
         connection with rating the Pass Through Certificates;

                 (ii)      the reasonable fees and expenses of Thelen, Marrin,
         Johnson & Bridges, special counsel for the Owner Participant, in an
         amount not to exceed the amount set forth in the letter dated August
         28, 1996 from such special counsel to the Lessee, plus disbursements
         [AMSOUTH: AND OF BERKOWITZ, LEFKOVITS, ISOM & KUSHNER, LOCAL COUNSEL
         FOR THE OWNER PARTICIPANT, IN AN AMOUNT NOT TO EXCEED THE AMOUNT SET
         FORTH IN THE LETTER DATED AUGUST 28, 1996 FROM THE OWNER PARTICIPANT
         TO THE LESSEE, PLUS DISBURSEMENTS], for their services rendered in
         connection with the negotiation, execution and delivery of this
         Participation Agreement and the Operative Agreements related hereto
         and the documents for the Related Transaction;

                 (iii)     all costs and fees in connection with the
         qualification of the Pass Through Certificates under securities or
         Blue Sky laws in accordance with the provisions of Section VI(f) of
         the Underwriting Agreement, including filing fees and the fees and
         disbursements of Kirkland & Ellis in connection therewith and in
         connection with the preparation of any Blue Sky memorandum;




                                      5
<PAGE>   10
                 (iv)      the reasonable fees and expenses of Ernst & Young,
         accountants of the Lessee, for their services rendered in connection
         with issuing "comfort letters" to the Underwriters;

                 (v)       the reasonable fees and expenses of Mayer, Brown &
         Platt, special counsel for the Lessee, for their services rendered in
         connection with the preparation of documentation, negotiation,
         execution and delivery of the Registration Statement, the Basic
         Prospectus, the Preliminary Final Prospectus, the Final Prospectus,
         the Underwriting Agreement, this Participation Agreement and the
         Operative Agreements related hereto;

                 (vi)      the reasonable fees and expenses of Kirkland &
         Ellis, special counsel for the Underwriters, for their services
         rendered in connection with the preparation of documentation,
         negotiation, execution and delivery of the Preliminary Final
         Prospectus, the Final Prospectus, the Underwriting Agreement, this
         Participation Agreement and the Operative Agreements related hereto;

                 (vii)     the reasonable fees and expenses of Alvord & Alvord,
         special STB counsel, and McCarthy Tetrault, special Canadian counsel,
         for the Owner Participant and the Indenture Trustee;

                 (viii)    the reasonable fees and expenses of Ray, Quinney &
         Nebeker, special counsel for the Owner Trustee, for their services
         rendered in connection with the negotiation, execution and delivery of
         this Participation Agreement and the Operative Agreements related
         hereto;

                 (ix)      the commissions payable to the Underwriters in
         connection with the sale of the Pass Through Certificates;

                 [AMSOUTH: (X)-1  THE REASONABLE OUT-OF-POCKET EXPENSES OF THE
         OWNER PARTICIPANT;]

                 (x)       the initial fees and reasonable out-of-pocket
         expenses of the Owner Trustee;

                 (xi)      the initial fees and reasonable out-of-pocket
         expenses of the Indenture Trustee;

                 (xii)     the initial fees and reasonable out-of-pocket
         expenses of the Pass Through Trustee;




                                      6
<PAGE>   11
                 (xiii)    the reasonable fees and expenses of R.L. Banks &
         Associates, Inc. [AMSOUTH: NORMAN W. SEIP & ASSOCIATES] for their
         services rendered in connection with delivering the Appraisal required
         by Section 4.3(a); and

                 (xiv)     the costs incurred in connection with any adjustment
pursuant to Section 2.6(a).

         Notwithstanding the foregoing, Transaction Costs shall not include
internal costs and expenses such as salaries and overhead of whatsoever kind or
nature of, nor costs incurred by, parties to this Participation Agreement
pursuant to arrangements with third parties for services (other than those
expressly referred to above), such as travel expenses, computer time
procurement, financial analysis and consulting, advisory services and costs of
a similar nature.

         (b)     Upon the consummation of the transactions contemplated by this
Agreement, the Lessee agrees to pay when due: (i) the reasonable expenses
(including reasonable legal fees and expenses) of the Owner Trustee, the
Indenture Trustee and the Participants incurred subsequent to the delivery of
the Equipment on the Closing Date, in connection with any supplements,
amendments, modifications, alterations, waivers or consents of any of the
Operative Agreements which are (1) requested by, or necessitated by action or
inaction on the part of, the Lessee or by any applicable law or regulation
(other than laws or regulations solely relating to the business of the Lessor
or the Owner Participant) or entered into in connection with, or as a result
of, a Lease Default or (2) necessary or required to effectuate the purpose or
intent of any Operative Agreement (including costs incurred in connection with
any adjustment pursuant to Section 2.6); (ii) the ongoing reasonable fees and
expenses (including reasonable legal fees and expenses) of the Owner Trustee
under the Trust Agreement; (iii) the ongoing reasonable fees and expenses of
the Indenture Trustee under the Operative Agreements; and (iv) the ongoing
reasonable fees and expenses of the Pass Through Trustee under the Pass Through
Trust Agreement.

         (c)     If the transactions contemplated hereby are not consummated as
a result of (i) the Lessee's default in its obligations to consummate the
transactions contemplated hereby, (ii) the Lessee's failure to consummate the
transactions contemplated hereby after the satisfaction or waiver of the
conditions set forth in Section 4 (other than conditions the satisfaction of
which are solely in the control of the Lessee), or (iii) subject to the next
sentence, in any other circumstance, the Lessee shall pay all Transaction
Costs.  Notwithstanding anything contained herein to the contrary, if the
transactions contemplated hereby are not consummated as a result of (x) the
Owner Participant's default in its obligations to consummate the transactions
hereunder, or (y) the Owner Participant's failure to make its equity investment
as required by Section 2.2(a) after the conditions specified in Section 4 have
been satisfied or waived by it in writing (other than conditions the
satisfaction of which are solely in the control of the Owner Participant), the
Owner Participant shall pay all Transaction Costs other than such costs and
expenses that would otherwise benefit the Lessee in ultimately closing the
transaction.



                                      7
<PAGE>   12
         (d)     Notwithstanding the foregoing provisions of this Section 2.5,
except as specifically provided in Section 7.2 or in any other Operative
Agreement, the Lessee shall have no liability for any costs or expenses
relating to any voluntary transfer of the Owner Participant's interest in the
Equipment including any transfer prior to the Closing Date of the Owner
Participant's obligation to fund its participation pursuant to Section 2 (other
than in connection with any transfer pursuant to Sections 10.2, 11.4, 22.1 or
22.3 of the Lease or Section 6.9 hereof or a Lease Event of Default) and no
such costs or expenses shall constitute Transaction Costs and the Lessee will
not have any obligation with respect to the costs and expenses resulting from
any voluntary transfer of any equity interest by any transferee of the Owner
Participant, whenever occurring (other than in connection with a Lease Event of
Default).

         Section 2.6.      Calculation of Adjustments to Basic Rent, Stipulated
Loss Value and Termination Value; Confirmation and Verification.

         (a)     Calculation of Adjustments.  In the event that (A) the Closing
Date is other than August 28, 1996 or (B) the Transaction Costs paid by the
Owner Participant pursuant to Section 2.5 prior to the first Rent Payment Date
are less or more than 0.75% of the Total Equipment Cost or (C) the Closing Date
is later than September 15, 1996 [AMSOUTH: AUGUST 29, 1996] and the rate of 5
[AMSOUTH: 5-1/2] year U.S. Treasury bills on the Closing Date is not 6.54%
[AMSOUTH: 6.56%] or (D) a refinancing contemplated by Section 10.2 occurs,
then, in each such case, the Owner Participant shall recalculate the payments
or amounts, as the case may be, of Basic Rent, Stipulated Loss Values,
Termination Values, Early Purchase Price and Basic Term Purchase Price, (i) to
preserve the Net Economic Return that the Owner Participant would have realized
had the Closing Date been August 28, 1996, had the Transaction Costs equaled
0.75% of the Total Equipment Cost, had the rate of 5 [AMSOUTH: 5-1/2] year U.S.
Treasury bills on the Closing Date been 6.54% [AMSOUTH: 6.56%] or had such
refinancing not occurred, and (ii) to minimize to the greatest extent possible,
consistent with the foregoing clause (i), the present value (discounted
semiannually at an interest rate per annum equal to the Debt Rate) of the
payments of Basic Rent.  Any such recalculation performed due to the occurrence
of an event described in clause (A), (B) or (C) above shall be made prior to
the first Rent Payment Date.  In performing any such recalculation and in
determining the Owner Participant's Net Economic Return, the Owner Participant
shall utilize the same methods and assumptions originally used in making the
computations of Basic Rent, Stipulated Loss Values, Termination Values, Early
Purchase Price and Basic Term Purchase Price with respect to the Basic Term
initially set forth in Schedules 3, 4, 6 and 7 to this Participation Agreement
(other than those assumptions changed as a result of any of the events
described in clauses (A) through (D) of the preceding sentence necessitating
such recalculation; it being agreed that such recalculation shall reflect
solely any changes of assumptions or facts resulting directly from the event or
events necessitating such recalculation).  Such adjustments shall comply (to
the extent the original structure complied) with section 467 of the Code and
the requirements of Sections 4.02(5), 4.07(1) and (2) and 4.08(1) of Revenue
Procedure 75-28, as amended, calculated, except in the case of a refinancing
pursuant to Section 10.2, without taking into account any





                                      8
<PAGE>   13
change after the Pricing Date in or to Section 467 of the Code (and any
regulations thereunder) and such requirements of Revenue Procedure 75-28.

         (b)     Confirmation and Verification.  Upon completion of any
recalculation described above in this Section 2.6, a duly authorized officer of
the Owner Participant shall provide a certificate to the Lessee either (x)
stating that the payments of Basic Rent, Stipulated Loss Values, Termination
Values, Early Purchase Price and Basic Term Purchase Price with respect to the
Basic Term as are then set forth in Schedules 3, 4, 6 and 7 of this
Participation Agreement do not require change, or (y) setting forth such
adjustments to the payments of Basic Rent, Stipulated Loss Values, Termination
Values, Early Purchase Price or Basic Term Purchase Price with respect to the
Basic Term as have been calculated by the Owner Participant in accordance with
Section 2.6(a) above.  Such certificate shall describe in reasonable detail the
basis for any such adjustments, and any such adjustment and corresponding
adjustments to the Stipulated Loss Values, Termination Values, Early Purchase
Price and Basic Term Purchase Price will be computed on a basis consistent with
that used by the Owner Participant in the original calculation of Basic Rent.
Any such adjustment shall be deemed approved upon notice of such approval by
the Lessee to the Owner Participant or on the thirty-first (31st) day following
delivery of such certificate by the Owner Participant to the Lessee unless the
Lessee, prior to such day, requests verification pursuant to the following
sentence, and shall become effective as of the earlier of (i) the first Rent
Payment Date and (ii) the date the Lessee approves or has been deemed to have
approved such adjustment (except that any adjustment to Stipulated Loss Value
shall be effective as of the Closing Date).  If the Lessee shall so request,
the recalculation of any such adjustments described in this Section 2.6 shall
be verified by a nationally recognized firm of independent accountants selected
by the Owner Participant and reasonably acceptable to the Lessee and any such
recalculation of such adjustment as so verified shall be binding on the Lessee
and the Owner Participant.  Such accounting firm shall be requested to make its
determination within 30 days.  The Owner Participant shall provide to a
representative of such accounting firm, on a confidential basis, such
information as it may reasonably require, including the original assumptions
used by the Owner Participant and the methods used by the Owner Participant in
the original calculation of, and any recalculation of, Basic Rent, Stipulated
Loss Values, Termination Values, Early Purchase Price and Basic Term Purchase
Price and such other information as is necessary to determine whether the
computation is accurate and in conformity with the provisions of this
Agreement, provided that in no event shall the Owner Participant have any
obligation to provide the Lessee with any such information; and provided,
further, that the Owner Participant shall have no obligation to disclose to the
Lessee, such accounting firm or any other Person, or to permit the Lessee, such
accounting firm or any other Person, to examine any federal, state or local
income tax returns of the Owner Participant, or books or accounting records
related thereto, for any taxable year.  Subject to the immediately following
sentence, the costs of such verification shall be borne by the Lessee.  If such
accounting firm's verification shall result in a decrease in the net present
value (expressed as a percentage of Total Equipment Cost) of the Basic Rent
(discounted semiannually at a rate per annum equal to the Debt Rate) under this
Lease calculated as of the Closing Date, as compared to the net present value
of Basic Rent proposed by the Owner Participant, by more than





                                      9
<PAGE>   14
10 basis points, then the Owner Participant agrees to reimburse the Lessee for
any amounts paid for such verification.  Any revised adjustment resulting from
such verification shall become effective on the next Rent Payment Date after
such verification has been concluded (except that any adjustment to Stipulated
Loss Value shall be effective as of the Closing Date), and shall take into
account any underpayment or overpayment, together with interest thereon at the
Debt Rate, resulting from an earlier effectiveness of the original adjustment.

         (c)     Compliance.  Notwithstanding the foregoing, any adjustment
made to the payments of Basic Rent, Stipulated Loss Values, Termination Values
or Early Purchase Price with respect to the Basic Term, pursuant to the
foregoing, shall comply with the following requirements:  (i) each installment
of Basic Rent, as so adjusted, under any circumstances and in any event, will
be in an amount at least sufficient for the Owner Trustee to pay in full as of
the due date of such installment any payment of principal of and interest on
the Equipment Notes required to be paid on the due date of such installment of
Basic Rent, and (ii) Stipulated Loss Value, Termination Value and Early
Purchase Price, as so adjusted, under any circumstances and in any event, will
be an amount which, together with any other amounts required to be paid by the
Lessee under the Lease in connection with an Event of Loss or a termination of
the Lease, as the case may be, will be at least sufficient to pay in full, as
of the date of payment thereof, the aggregate unpaid principal of, any
Make-Whole Amount and all unpaid interest on the Equipment Notes, accrued to
the date on which Stipulated Loss Value, Termination Value or Early Purchase
Price, as the case may be, is paid in accordance with the terms of the Lease.

         (d)     Invoices.  All invoices in respect of Transaction Costs to the
extent not delivered on the Closing Date shall be directed to the Owner
Participant at the address set forth in Section 10.4, with a copy to the
Lessee.

         Section 2.7.      Postponement of Closing Date.

         (a)     The scheduled Closing Date may be postponed from time to time
with respect to all of the Units for any reason (but to no later than September
30, 1996) if the Lessee gives the Owner Participant, the Indenture Trustee, the
Pass Through Trustee and the Owner Trustee telex, telegraphic, facsimile or
telephonic (confirmed in writing) notice of the postponement and notice of the
date to which such Closing Date has been postponed, the notice of postponement
to be received by each party no later than 5:30 P.M., New York City time, on
the originally scheduled Closing Date, and the term "Closing Date" as used in
this Agreement shall mean the postponed "Closing Date".

         (b)     In the event of any postponement of the originally scheduled
Closing Date pursuant to this Section 2.7 (the originally scheduled Closing
Date being referred to as the "Scheduled Closing Date" for the purposes of this
Section 2.7):  (i) the Lessee will reimburse the Owner Participant for the loss
of the use of its funds with respect to each such Unit occasioned by such
postponement or failure to deliver or accept (unless such failure to accept is
caused by a default by the Owner Participant hereunder or by the Owner Trustee
(acting





                                      10
<PAGE>   15
pursuant to instructions from the Owner Participant) under the Trust Agreement,
the Lease or the Indenture) by paying to the Owner Participant on demand
interest at the Debt Rate, for the period from and including the Scheduled
Closing Date to but excluding the earlier of the date upon which such funds are
returned to the Owner Participant (unless such funds are returned after 1:00
p.m. (New York City time) in which case such date of return shall be included)
or the actual Closing Date; provided that the Lessee shall in any event pay to
the Owner Participant at least one day's interest at the Debt Rate on the
amount of such funds, unless the Owner Participant shall have received, prior
to 12:00 noon (New York City time) on the Business Day preceding the Scheduled
Closing Date, a notice of postponement of the Scheduled Closing Date pursuant
to Section 2.7(a), and (ii) the Indenture Trustee will return not later than
10:00 A.M. New York City time, on the first Business Day following the
Scheduled Closing Date, any funds which it shall have received from the Owner
Participant as its Commitment for such Units, absent joint instructions from
the Lessee and the Owner Participant to retain such funds until the specified
date of postponement established under Section 2.7(a).

         (c)     The Indenture Trustee agrees that, in the event it has
received telephonic notice (to be confirmed promptly in writing) from the
Lessee on the Scheduled Closing Date that such Scheduled Closing Date is to be
postponed, it will if instructed in the aforementioned notice from the Lessee
(which notice shall specify the securities to be purchased) use reasonable best
efforts to invest, at the risk of the Lessee (except as provided below with
respect to the Indenture Trustee's gross negligence or willful misconduct), the
funds received by it from the Owner Participant with respect to its Commitment
in Specified Investments in accordance with the Lessee's instructions.  Any
such Specified Investments purchased by the Indenture Trustee upon instructions
from the Lessee shall be held in trust by the Indenture Trustee (but not as
part of the Indenture Estate under the Indenture) for the benefit of the Owner
Participant whose funds are invested in Specified Investments upon instructions
from the Lessee and any net profits on the investment of such funds (including
interest), if any, shall be for the account of and shall on the Closing Date,
or on the date such funds are returned to the Owner Participant, be paid over
to, the Lessee.  The Lessee shall pay to the Indenture Trustee on the Closing
Date (if such Unit or Units are delivered and accepted pursuant hereto) the
amount of any net loss on the investment of such funds invested at the
instruction of the Lessee.  If the funds furnished by the Owner Participant
with respect to such Unit or Units are required to be returned to the Owner
Participant, the Lessee shall, on the date on which such funds are so required
to be returned, reimburse the Indenture Trustee, for the benefit of the Owner
Participant, for any net losses incurred on such investments.  The Indenture
Trustee shall not be liable for failure to invest such funds or for any losses
incurred on such investments except for its own willful misconduct or gross
negligence.  In order to obtain funds for the payment of Equipment Cost for
such Unit or Units or to return funds furnished by the Owner Participant to the
Indenture Trustee for the benefit of the Owner Participant with respect to such
Unit or Units, the Indenture Trustee is authorized to sell any Specified
Investments purchased as aforesaid with the funds received by it from the Owner
Participant in connection with such Unit or Units.





                                      11
<PAGE>   16
         (d)     Notwithstanding the provisions of Section 2.7(a), the Owner
Participant shall not be under any obligation to make its Commitment available
beyond 11:00 A.M. (New York City time) on September 30, 1996.

SECTION 3. REPRESENTATIONS AND WARRANTIES.

         Section 3.1.      Representations and Warranties of the Owner Trustee.
The Owner Trustee, in its individual capacity (except with respect to clauses
(c) and (k) (to the extent applicable to the Owner Trustee in its capacity as
Owner Trustee) below) and as Owner Trustee with respect to clauses (c), (e) (to
the extent provided therein) and (k) (to the extent applicable to the Owner
Trustee in its capacity as Owner Trustee) below, represents and warrants to the
Owner Participant, each of the other Trustees and the Lessee, notwithstanding
the provisions of Section 10.13 or any similar provision in any other Operative
Agreement, that, as of the date hereof:

         (a)     the Owner Trustee in its individual capacity (i) is a national
banking association duly organized and validly existing in good standing under
the laws of the United States of America, (ii) has full corporate power and
authority to carry on its business as now conducted and to enter into and
perform its obligations hereunder and under the Trust Agreement and (iii)
(assuming due authorization, execution and delivery of the Trust Agreement by
the Owner Participant) has full power and authority, as Owner Trustee and/or,
to the extent expressly provided herein or therein, in its individual capacity,
to enter into and perform its obligations under each of the Owner Trustee
Agreements;

         (b)     (i) the Owner Trustee, in its individual capacity, has duly
authorized, executed and delivered the Trust Agreement, (ii) (assuming the due
authorization, execution and delivery of the Trust Agreement by the Owner
Participant) the Owner Trustee in its trust capacity and, to the extent
expressly provided therein, in its individual capacity, has duly authorized,
executed and delivered each of the other Owner Trustee Agreements and, as of
the Closing Date, the Equipment Notes, the Lease Supplements and the Indenture
Supplements to be delivered on the Closing Date, and (iii) the Trust Agreement
constitutes a legal, valid and binding obligation of the Owner Trustee, in its
individual capacity, enforceable against it in its individual capacity in
accordance with its terms except as the same may be limited by bankruptcy,
insolvency, reorganization, moratorium or similar laws affecting the rights of
creditors generally and by general principles of equity;

         (c)     assuming the due authorization, execution and delivery of the
Trust Agreement by the Owner Participant, each of the Owner Trustee Agreements
(other than the Trust Agreement) to which it is a party constitutes, or when
entered into will constitute, a legal, valid and binding obligation of the
Owner Trustee, enforceable against it in accordance with its terms, except as
enforceability may be limited by bankruptcy, insolvency, reorganization,
moratorium or other similar laws affecting the rights of creditors generally
and by general principles of equity;





                                      12
<PAGE>   17
         (d)     neither the execution and delivery by the Owner Trustee, in
its individual capacity or as Owner Trustee, as the case may be, of the Owner
Trustee Agreements or the Equipment Notes to be delivered on the Closing Date,
nor the consummation by the Owner Trustee, in its individual capacity or as
Owner Trustee, as the case may be, of any of the transactions contemplated
hereby or thereby, nor the compliance by the Owner Trustee, in its individual
capacity, or as Owner Trustee, as the case may be, with any of the terms and
provisions hereof and thereof, (i) requires or will require any approval of its
stockholders, or approval or consent of any trustees or holders of any
indebtedness or obligations of it in its individual capacity, or (ii) violates
or will violate its charter documents or by-laws, or contravenes or will
contravene any provision of, or constitutes or will constitute a default under,
or results or will result in any breach of, any indenture, mortgage, chattel
mortgage, deed of trust, conditional sale contract, bank loan or credit
agreement, license or other agreement or instrument to which the Owner Trustee
in its individual capacity is a party or by which it is bound, or contravenes
or will contravene any law, governmental rule or regulation of the United
States of America or the State of Utah governing the banking or trust powers of
the Owner Trustee, or any judgment or order applicable to or binding on it;

         (e)     there are no Taxes payable by the Owner Trustee, either in its
individual capacity or as Owner Trustee, imposed by the State of Utah or any
political subdivision thereof or by the United States of America in connection
with the execution and delivery by the Owner Trustee in its individual capacity
of the Trust Agreement, and, in its individual capacity or as Owner Trustee, as
the case may be, of this Agreement, the other Owner Trustee Agreements (other
than the Trust Agreement) or the Equipment Notes to be delivered on the Closing
Date solely because the Owner Trustee in its individual capacity is a national
banking association with its principal place of business in Salt Lake City,
Utah and performs certain of its duties as Owner Trustee in the State of Utah;
and there are no Taxes payable by the Owner Trustee, in its individual capacity
or as Owner Trustee, as the case may be, imposed by the State of Utah or any
political subdivision thereof or by the United States of America in connection
with the acquisition of its interest in the Equipment (other than franchise or
other taxes based on or measured by any fees or compensation received by the
Owner Trustee for services rendered in connection with the transactions
contemplated hereby) solely because the Owner Trustee in its individual
capacity is a national banking association with its principal place of business
in Salt Lake City, Utah and performs certain of its duties as Owner Trustee in
the State of Utah;

         (f)     there are no pending or, to its knowledge, threatened actions
or proceedings against the Owner Trustee, either in its individual capacity or
as Owner Trustee, before any court or administrative agency which individually
or in the aggregate, if determined adversely to it, would materially adversely
affect the ability of the Owner Trustee, in its individual capacity or as Owner
Trustee, as the case may be, to perform its obligations under the Trust
Agreement, the other Owner Trustee Agreements or the Equipment Notes to be
delivered on the Closing Date;





                                      13
<PAGE>   18
         (g)     both its chief executive office, and the place where its
records concerning the Equipment and all its interest in, to and under all
documents relating to the Trust Estate, are located at Salt Lake City, Utah,
and the Owner Trustee, in its individual capacity, agrees to give the Owner
Participant, the Indenture Trustee and the Lessee written notice within 30 days
following any relocation of said chief executive office or said place from its
present location;

         (h)     no consent, approval, order or authorization of, giving of
notice to, or registration with, or taking of any other action in respect of,
any Utah state or local governmental authority or agency or any United States
federal governmental authority or agency regulating the banking or trust powers
of the Owner Trustee, in its individual capacity, is required for the execution
and delivery of, or the carrying out by, the Owner Trustee in its individual
capacity or as Owner Trustee, as the case may be, of any of the transactions
contemplated hereby or by the Trust Agreement or of any of the transactions
contemplated by any of the other Owner Trustee Agreements, other than any such
consent, approval, order, authorization, registration, notice or action as has
been duly obtained, given or taken;

         (i)     on the Closing Date, the Owner Trustee's right, title and
interest in and to the Equipment delivered on the Closing Date shall be free of
any Liens attributable to the Owner Trustee in its individual capacity;

         (j)     the proceeds received by the Owner Trustee from the Owner
Participant pursuant to the Trust Agreement will be administered by it in
accordance with Article IV of the Trust Agreement;

         (k)     the Owner Trustee shall receive from the Lessee such title as
was conveyed to it by the Lessee, subject to the rights of the Owner Trustee
and the Lessee under the Lease and the security interest created pursuant to
the Indenture and the Indenture Supplement in respect of the Units delivered on
the Closing Date, and there will be no Lessor's Liens attributable to it on the
Equipment or any interest therein or on the Trust Estate; and

         (l)     to its knowledge, no Indenture Default or Indenture Event of
Default has occurred and is continuing.

         Section 3.2.      Representations and Warranties of the Lessee.  The
Lessee represents and warrants to the Trustees and the Owner Participant that,
as of the date hereof:

         (a)     the Lessee is a corporation duly organized, validly existing,
and in good standing under the laws of the State of New York, is duly licensed
or qualified and in good standing in each jurisdiction in which the failure to
so qualify would have a material adverse effect on its ability to carry on its
business as now conducted or to enter into and perform its obligations under
the Lessee Agreements, has the corporate power and authority to sell the
Equipment to the Owner Trustee and to carry on its business as now conducted,
and has the requisite power and authority to execute, deliver and perform its
obligations under the Lessee Agreements;





                                      14
<PAGE>   19
         (b)     the Lessee Agreements have been duly authorized by all
necessary corporate action (no shareholder approval being required), executed
and delivered (or in the case of the Lease Supplements in respect of the Units
delivered on the Closing Date will on the Closing Date have been duly executed
and delivered) by the Lessee, and constitute (or in the case of the Lease
Supplement in respect of the Units delivered on the Closing Date will on the
Closing Date constitute) the legal, valid and binding obligations of the
Lessee, enforceable against the Lessee in accordance with their respective
terms except as enforceability may be limited by bankruptcy, insolvency,
reorganization, moratorium or similar laws affecting the rights of creditors
generally and by general principles of equity;

         (c)     the execution, delivery and performance by the Lessee of each
Lessee Agreement and compliance by the Lessee with all of the provisions
thereof do not and will not contravene any law or regulation, or any order of
any court or governmental authority or agency applicable to or binding on the
Lessee or any of its properties, or contravene the provisions of, or constitute
a default by the Lessee under, or result in the creation of any Lien (except
for Permitted Liens) upon the property of the Lessee under its certificate of
incorporation or by-laws or any indenture, mortgage, contract or other
agreement or instrument to which the Lessee is a party or by which the Lessee
or any of its property is bound or affected;

         (d)     except for those matters discussed in the financial statements
provided to the Participants under Section 3.2(e), there are no proceedings
pending or, to the knowledge of the Lessee, threatened against the Lessee or
any Subsidiary in any court or before any governmental authority or arbitration
board or tribunal which individually or in the aggregate would, if determined
adversely to it, materially and adversely affect the financial condition or
business of the Lessee and its consolidated Subsidiaries, taken as a whole, or
impair the ability of the Lessee to perform its obligations under the Lessee
Agreements or which questions the validity of any Lessee Agreement or any
action taken or to be taken pursuant thereto.  Neither the Lessee nor any
Subsidiary is in default with respect to any order of any court or governmental
authority or arbitration board or tribunal, the default under which would
affect adversely the ability of the Lessee to perform its obligations under the
Lessee Agreements;

         (e)     the audited consolidated balance sheets and consolidated
statements of income and retained earnings and cash flows of the Lessee for the
fiscal year ended December 31, 1995, fairly present, in conformity with
generally accepted accounting principles, the consolidated financial position
of the Lessee and its Subsidiaries as of such date and the results of their
operations for the period then ended.  The unaudited consolidated balance
sheets and consolidated statements of income and retained earnings and cash
flows of the Lessee and its Subsidiaries for the six-month period ended June
30, 1996 fairly present, in conformity with generally accepted accounting
principles consistently applied (except for the absence of footnotes in the
June 30, 1996 financial statements), the consolidated financial position of the
Lessee and its Subsidiaries as of such date and the results of their operations
for the period then ended, subject to normal year-end adjustments.  Since
December 31, 1995, there has been no material





                                      15
<PAGE>   20
adverse change in the condition, financial or otherwise, of the Lessee and its
consolidated Subsidiaries, taken as a whole, as shown on the financial
statements of Lessee as of such date;

         (f)     no consent, approval or authorization of, or filing,
registration or qualification with, or the giving of notice to, any trustee or
any holder of indebtedness of Lessee or any governmental authority on the part
of the Lessee is required in connection with the execution and delivery by the
Lessee of the Lessee Agreements, other than notices required to be filed with
the STB and the Registrar General of Canada, which STB notice shall have been
filed on the Closing Date and which Canadian notice shall be filed promptly
following the Closing Date;

         (g)     the Lease, the Indenture, the Lease Supplements in respect of
the Units delivered on the Closing Date and the Indenture Supplements in
respect of the Units delivered on the Closing Date will on or before the
Closing Date be duly filed with the STB pursuant to 48 U.S.C. Section 11301 and
deposited with the Registrar General of Canada pursuant to Section 90 of the
Railway Act of Canada and such filing with the STB pursuant to 49 U.S.C.
Section 11301 will perfect the Owner Trustee's and the Indenture Trustee's
rights in such Operative Agreements and in the Units, and such deposit with the
Registrar General of Canada will perfect the Owner Trustee's and the Indenture
Trustee's rights in such Operative Agreements and in the Units and no other
filing, recording or deposit with, or giving of notice to any other federal,
state, provincial or local government or agency thereof, or any other action,
is necessary in order to protect the rights of the Owner Trustee and the
Indenture Trustee in such Operative Agreements or in such Units in the United
States, any state thereof, the District of Columbia or to protect the rights of
the Owner Trustee and the Indenture Trustee in such Operative Agreements or in
such Units in Canada or any province thereof;

         (h)     the Equipment is covered by the insurance required by Section
12 of the Lease and all premiums due prior to the Closing Date in respect of
such insurance shall have been paid in full;

         (i)     the Lessee has timely filed all United States Federal income
tax returns and all other material tax returns which are required to be filed
by it and has paid all taxes due pursuant to such returns or pursuant to any
assessment made against the Lessee or any of its assets (other than
assessments, the payment of which is being contested in good faith by
appropriate proceedings by the Lessee and none of which are material), and no
tax liens have been filed and no claims are being asserted with respect to any
such taxes, fees or other charges which could reasonably be expected to have a
materially adverse effect on its ability to perform its obligations under the
Lessee Agreements.  The provision for taxes on the books of the Lessee is
adequate for all open years, and for its current fiscal period;

         (j)     no Lease Default or Lease Event of Default has occurred and is
continuing and to the knowledge of Lessee, no Event of Loss, or event with
which the giving of notice and/or the passage of time would constitute an Event
of Loss, has occurred;





                                      16
<PAGE>   21
         (k)     the Lessee is not an "investment company" or an "affiliated
person" of an "investment company" within the meaning of the Investment Company
Act of 1940;

         (l)     the acquisition by the Owner Participant of the Beneficial
Interest for its own account will not constitute a prohibited transaction
within the meaning of Section 4975(c)(1)(A) through (D) of the Code or a
"Prohibited Transaction" under ERISA.  The representation made by the Lessee in
the preceding clause is made in reliance upon and subject to the accuracy of
the representation of the Owner Participant in Section 3.6(h) of this
Agreement;

         (m)     on the Closing Date, Lessee shall have, and the Bill of Sale
to be delivered on the Closing Date shall convey, to the Owner Trustee all
legal and beneficial title to the Units being delivered on the Closing Date,
free and clear of all Liens (other than Permitted Liens of the type described
in clause (ii) with respect to sublessees, and in clauses (iii), (iv), (vi) and
(vii) of the definition thereof), and such conveyance is not void or voidable
under any applicable law;

         (n)     the financial statements referred to in Section 3.2(e) do not,
nor does the Registration Statement relating to the Pass Through Certificates
or any written statement furnished by the Lessee or on behalf of the Lessee in
connection with the negotiation of the Lease or any other Operative Agreement,
contain any untrue statement of a material fact or omit a material fact
necessary to make the statements contained therein or herein not misleading.
There is no fact which the Lessee has not disclosed in writing which materially
affects adversely or, so far as the Lessee can now reasonably foresee, will
materially affect adversely the properties, business, prospects, profits or
condition (financial or otherwise) of the Lessee and its Subsidiaries, taken as
a whole;

         (o)     none of the transactions contemplated by the Operative
Agreements (including, without limitation, the use of the proceeds from the
sale of the Equipment Notes) will result in a violation of Section 7 of the
Securities Exchange Act of 1934, as amended, or any regulations issued pursuant
thereto, including, without limitation, Regulations G, T, U and X of the Board
of Governors of the Federal Reserve System, 12 C.F.R., Chapter II.  None of the
proceeds from the sale of the Equipment Notes will be used to purchase or carry
(or refinance any borrowing the proceeds of which were used to purchase or
carry) any "security" within the meaning of the Securities Exchange Act of
1934, as amended;

         (p)     the Lessee is not in violation of any term of any charter
instrument, by-law or in any material respect of any other material agreement
or instrument to which it is a party or by which it may be bound.  The Lessee
is in compliance with all laws, ordinances, governmental rules and regulations
to which it is subject, the failure to comply with which would have a material
and adverse effect on its operations or condition, financial or otherwise, or
would impair the ability of the Lessee to perform its obligations under the
Operative Agreements to which it is a party, and has obtained all licenses,
permits, franchises and other governmental authorizations material to the
conduct of its business;





                                      17
<PAGE>   22
         (q)     on the Closing Date all sales, use or transfer taxes due and
payable upon the purchase of the Equipment by the Lessor and on the lease
thereof to the Lessee will have been paid or such transactions will then be
exempt from any such taxes and the Lessee will cause any required forms or
reports in connection with such taxes to be filed in accordance with applicable
laws and regulations.  No taxes, fees or other charges in connection with the
execution and delivery of the Operative Agreements or the issuance and sale of
the Equipment Notes to be delivered on the Closing Date are payable;

         (r)     no broker's or finder's or placement fee or commission will be
payable with respect to the transactions contemplated by the Operative
Agreements as a result of any action by Lessee, except for the fees of GATX
Lease Funding, Inc., which Lessee agrees will be paid by it, and of Morgan
Stanley & Co. Incorporated and Salomon Brothers Inc, which shall be included in
Transaction Costs, and Lessee agrees that it will hold the Owner Participant,
the Owner Trustee and the Indenture Trustee harmless from any claim, demand or
liability for any other broker's or finder's or placement fees or commission
alleged to have been incurred as a result of any action by Lessee in connection
with such transactions;

         (s)     each Unit of the Equipment, taken as a whole, and each major
component thereof, complies in all material respects with all applicable laws
and regulations, conforms with the specifications for such Unit contained in
the Appraisal referred to in Section 4.3(a) hereof and is substantially
complete such that it is ready and available to operate in commercial service
and otherwise perform the function for which it was designed; and

         (t)     the Lessee is not subject to regulation as a "holding
company," an "affiliate" of a "holding company," or a "subsidiary company" of a
"holding company," within the meaning of the Public Utility Holding Company Act
of 1935, as amended.

         Section 3.3.      Representations and Warranties of the Indenture
Trustee.  The Indenture Trustee represents and warrants to the Owner
Participant, the Owner Trustee and the Lessee that, as of the date hereof:

         (a)     the Indenture Trustee is a national banking association duly
organized and validly existing and in good standing under the laws of the
United States of America and has the full corporate power, authority and legal
right under the laws of the United States of America pertaining to its banking,
trust and fiduciary powers to execute, deliver and carry out the terms of each
of the Indenture Trustee Agreements;

         (b)     the execution, delivery and performance by the Indenture
Trustee of each of the Indenture Trustee Agreements have been duly authorized
by the Indenture Trustee and will not violate any applicable law or its
articles of association or by-laws or the provisions of any indenture,
mortgage, contract or other agreement to which it is a party or by which it is
bound;





                                      18
<PAGE>   23
         (c)     this Agreement has been duly executed and delivered and
constitutes, and the other Indenture Trustee Agreements, when executed and
delivered, will constitute its legal, valid and binding obligation enforceable
against it in accordance with its terms;

         (d)     there are no proceedings pending or, to the knowledge of the
Indenture Trustee, threatened, and to the knowledge of the Indenture Trustee
there is no existing basis for any such proceedings, against or affecting the
Indenture Trustee in or before any court or before any governmental authority
or arbitration board or tribunal which, individually or in the aggregate, if
adversely determined, might impair the ability of the Indenture Trustee to
perform its obligations under the Indenture Trustee Agreements;

         (e)     no authorization or approval or other action by, and no notice
to or filing with, any stockholder, trustee or holder of indebtedness or any
governmental authority or regulatory body of the United States of America
governing the Indenture Trustee in its trust capacity, is required for the due
execution, delivery and performance by the Indenture Trustee of the Indenture
Trustee Agreements, except as have been previously obtained, given or taken;

         (f)     the Indenture Trustee is not in default under any of the
Indenture Trustee Agreements; and

         (g)     neither the Indenture Trustee, nor any Person authorized to
act on behalf of the Indenture Trustee, has directly or indirectly offered any
interest in the Trust Estate or the Equipment Notes or any security similar to
either thereof related to this transaction for sale to, or solicited offers to
buy any of the same from, or otherwise approached or negotiated with respect to
any of the same with, any Person other than the Pass Through Trustee, the
Underwriters and the initial purchasers of the Pass Through Certificates.

         Section 3.4.      Representations, Warranties and Covenants Regarding
Beneficial Interest and Equipment Notes.


         (a)     The Owner Trustee represents and warrants to the Lessee, each
of the other Trustees and the Owner Participant that, as of the date hereof and
as of the Closing Date, neither the Owner Trustee nor any Person authorized or
employed by the Owner Trustee as agent or otherwise in connection with the
placement of the Beneficial Interest or the Equipment Notes or any similar
interest has offered any of the Beneficial Interest or the Equipment Notes or
any similar interest for sale to, or solicited offers to buy any thereof from,
or otherwise approached or negotiated with respect thereto with, any
prospective purchaser.

         (b)     The Lessee represents and warrants to the Trustees and the
Owner Participant that, as of the date hereof and as of the Closing Date,
neither the Lessee nor any Person authorized or employed by the Lessee as agent
or otherwise in connection with the placement of the Beneficial Interest or the
Equipment Notes or any similar interest has offered any of the Beneficial
Interest or the Equipment Notes or similar interest for sale to, or solicited
offers to





                                      19
<PAGE>   24
buy any thereof from, or otherwise approached or negotiated with respect
thereto with, any Person other than the Owner Participant and not more than 34
other institutional investors with respect to the Beneficial Interest, and,
except for the issue and sale of the Pass Through Certificates as contemplated
by the Registration Statement, the Pass Through Trustee with respect to the
Equipment Notes.

         (c)     Each of the Owner Trustee, the Owner Participant and the
Lessee agree, as to its own actions only, severally but not jointly that
neither the Owner Trustee, the Owner Participant nor the Lessee nor anyone
acting on behalf of the Owner Trustee, the Owner Participant or the Lessee will
offer the Beneficial Interest, the Equipment Notes, or any part thereof or any
similar interest for issue or sale to any prospective purchaser, or solicit any
offer to acquire any of the Beneficial Interest, the Equipment Notes, or any
part thereof so as to bring the issuance and sale of the Beneficial Interest,
the Equipment Notes, or any part thereof within the provisions of Section 5 of
the Securities Act of 1933, as amended.

         Section 3.5.      Representations and Warranties of the Pass Through
Trustee.  The Pass Through Trustee represents and warrants to the Owner
Participant, the other Trustees, and the Lessee that, as of the date hereof:

         (a)     the Pass Through Trustee is a national banking association
duly organized and validly existing in good standing under the laws of the
United States of America and has the full corporate power, authority and legal
right under the laws of the United States of America pertaining to its banking,
trust and fiduciary powers to execute, deliver and carry out the terms of the
Pass Through Trust Agreement, the Pass Through Trust Supplements and this
Agreement;

         (b)     the Pass Through Trust Agreement, the Pass Through Trust
Supplements and this Agreement have been duly authorized, executed and
delivered by the Pass Through Trustee; this Agreement, the Pass Through Trust
Supplements and the Pass Through Trust Agreement constitute the legal, valid
and binding obligation of the Pass Through Trustee enforceable against it in
accordance with its terms;

         (c)     the execution, delivery and performance by the Pass Through
Trustee of the Pass Through Trust Agreement, the Pass Through Trust Supplements
and this Agreement, the purchase by the Pass Through Trustee of the Equipment
Notes pursuant to this Agreement, and the issuance of the Pass Through
Certificates pursuant to the Pass Through Trust Agreement and the Pass Through
Trust Supplements, do not contravene any law, rule or regulation of any United
States of America governmental authority or agency regulating the Pass Through
Trustee's banking, trust or fiduciary powers or any judgment or order
applicable to or binding on the Pass Through Trustee and do not contravene or
result in any breach of, or constitute a default under, the Pass Through
Trustee's articles of association or by-laws or any agreement or instrument to
which the Pass Through Trustee is a party or by which it or any of its
properties may be bound;





                                      20
<PAGE>   25
         (d)     neither the execution and delivery by the Pass Through Trustee
of the Pass Through Trust Agreement, the Pass Through Trust Supplements or this
Agreement nor the consummation by the Pass Through Trustee of any of the
transactions contemplated hereby or thereby, requires the consent or approval
of, the giving of notice to, or the registration with, or the taking of any
other action with respect to, any United States of America governmental
authority or agency or any Federal governmental authority or agency regulating
the Pass Through Trustee's banking, trust or fiduciary powers;

         (e)     there are no pending or threatened actions or proceedings
against the Pass Through Trustee before any court or administrative agency
which individually or in the aggregate, if determined adversely to it, would
materially adversely effect the ability of the Pass Through Trustee to perform
its obligations under this Agreement, the Pass Through Trust Supplements or the
Pass Through Trust Agreement;

         (f)     the Pass Through Trustee is not in default under the Pass
Through Trust Agreement, as supplemented by the Pass Through Trust Supplements;

         (g)     the Pass Through Trustee is not directly or indirectly
controlling, controlled by or under common control with the Owner Participant,
the Owner Trustee, the Underwriters or the Lessee;

         (h)     the Pass Through Trustee is purchasing the Equipment Notes for
the purposes contemplated by the Operative Agreements and not with a view to
the transfer or distribution of any Equipment Note to any other Person, except
as contemplated by the Operative Agreements; and

         (i)     except for the issue and sale of the Pass Through Certificates
contemplated hereby, the Pass Through Trustee has not directly or indirectly
offered any Equipment Note or Pass Through Certificate or any interest in or to
the Trust Estate, the Trust Agreement or any similar interest for sale to, or
solicited any offer to acquire any of the same from, anyone other than the
Owner Trustee and the Owner Participant, and the Pass Through Trustee has not
authorized anyone to act on its behalf to offer directly or indirectly any
Equipment Note, any Pass Through Certificate or any interest in and to the
Trust Estate, the Trust Agreement or any similar interest related to this
transaction for sale to, or to solicit any offer to acquire any of the same
from, any person other than each Owner Trustee and the Owner Participant, and
the Pass Through Trustee is not in default under the Pass Through Trust
Agreement.

         Section 3.6.      Representations and Warranties of the Owner
Participant.  The Owner Participant represents and warrants to the Trustees and
the Lessee that, as of the date hereof:

         (a)     the Owner Participant is a [AMSOUTH: BANKING] corporation duly
organized, validly existing and in good standing under the laws of the State of
New York [AMSOUTH: ALABAMA] and has full corporate power and authority to carry
on its business as now conducted;





                                      21
<PAGE>   26
         (b)     the Owner Participant has the requisite corporate power and
authority to enter into the Owner Participant Agreements and to perform its
obligations thereunder, and the execution, delivery and performance thereof do
not and will not contravene any law or regulation, or any order of any court or
governmental authority or agency applicable to or binding on the Owner
Participant or any of its properties, or contravene the provisions of, or
constitute a default under, or result in the creation of any Lien (other than
such as are created by the Operative Agreements) upon the Equipment under, its
charter documents or by-laws or any indenture, mortgage, contract or other
agreement or instrument to which the Owner Participant is a party or by which
it or any of its property is bound or affected;

         (c)     the Owner Participant Agreements have been duly authorized by
all necessary corporate actions on the part of the Owner Participant, do not
require any approval not already obtained of the shareholders of the Owner
Participant or any approval or consent not already obtained of any trustee or
holders of indebtedness or obligations of the Owner Participant, have been duly
executed and delivered by the Owner Participant and (assuming the due
authorization, execution and delivery by each other party thereto) constitute
the legal, valid and binding obligations of the Owner Participant, enforceable
against the Owner Participant in accordance with their respective terms, except
as enforceability may be limited by bankruptcy, insolvency, moratorium or other
similar laws affecting the rights of creditors generally and by general
principles of equity;

         (d)     no authorization or approval or other action by, and no notice
to or filing with, any governmental authority or regulatory body is required
for the due execution, delivery or performance by the Owner Participant of the
Trust Agreement, the Tax Indemnity Agreement or this Agreement;

         (e)     the Trust Estate is free of any Lessor's Liens attributable to
the Owner Participant;

         (f)     there are no pending or, to the Owner Participant's knowledge,
threatened actions or proceedings against the Owner Participant before any
court or administrative agency which would materially adversely affect the
Owner Participant's financial condition or its ability to perform its
obligations under the Trust Agreement, the Tax Indemnity Agreement or this
Agreement;

         (g)     as of the Closing Date the Owner Participant is purchasing the
Beneficial Interest to be acquired by it for its account with no present
intention of distributing such Beneficial Interest or any part thereof in any
manner which would violate the Securities Act of 1933, as amended, but without
prejudice, however, to the right of the Owner Participant at all times to sell
or otherwise dispose of all or any part of such Beneficial Interest in
compliance with the Securities Act of 1933, as amended; provided, however, that
subject to the provisions of Section 6.1, the disposition of the Beneficial
Interest shall at all times be within the Owner Participant's control.  The
Owner Participant acknowledges that its Beneficial Interest has not





                                      22
<PAGE>   27
been registered under the Securities Act of 1933, as amended, and that neither
the Owner Trustee nor the Lessee contemplates filing, or is legally required to
file, any such registration statement;

         (h)     with respect to the source of the amount to be advanced by the
Owner Participant pursuant to Section 2.2, no part of such amount constitutes
assets of any employee benefit plan subject to Title I of ERISA or Section 4975
of the Code; and

         (i)     no broker's or finder's or placement fee or commission will be
payable with respect to the transactions contemplated by the Operative
Agreements as a result of any action by the Owner Participant except for the
fees of Mellon Financial Services Corporation #4 [AMSOUTH: D'ACCORD, INC.],
which will be paid by the Owner Participant and the Owner Participant agrees
that it will hold Lessee, the Indenture Trustee and Lessor harmless from any
claim, demand or liability for broker's or finder's or placement fees or
commission alleged to have been incurred as a result of any action by the Owner
Participant in connection with this transaction.

         Section 3.7.      Opinion Acknowledgment.  Each of the parties hereto,
with respect to such party, expressly consents to the rendering by its counsel
of the opinion referred to in Section 4.1(e) and acknowledges that such opinion
shall be deemed to be rendered at the request and upon the instructions of such
party.

SECTION 4. CLOSING CONDITIONS.

         Section 4.1.      Conditions Precedent to Investment by Each
Participant.  The obligation of each Participant to make its investment
specified with respect to such Participant in Section 2 on the Closing Date
shall be subject to the following conditions (except that paragraph (k) and
clause (i) of paragraph (p) shall not be conditions precedent to the Owner
Participant's obligations hereunder and paragraph (n) and (s) and clause (ii)
of paragraph (p) shall not be conditions precedent to the Loan Participant's
obligations hereunder):

         (a)     Execution of Operative Agreements.  On or before the Closing
Date, this Agreement, the Trust Agreement, the Lease, the Lease Supplements in
respect of the Units delivered on the Closing Date, the Indenture, the
Indenture Supplements in respect of the Units delivered on the Closing Date,
the Equipment Notes, the Pass Through Trust Agreement, the Pass Through Trust
Supplements and the Underwriting Agreement shall each be satisfactory in form
and substance to such Participant, shall have been duly executed and delivered
by the parties thereto (except that the execution and delivery of the documents
referred to above (other than this Agreement) by a party hereto or thereto
shall not be a condition precedent to such party's obligations hereunder),
shall each be in full force and effect and executed counterparts of each shall
have been delivered to such Participant or its counsel on or before the Closing
Date; and no event shall have occurred and be continuing that constitutes a
Lease Default or an Indenture Default.





                                      23
<PAGE>   28

         (b)     Recordation and Filing.  On or before the Closing Date the
Lessee shall have caused the Lease, the Lease Supplements in respect of Units
delivered on the Closing Date, the Indenture and the Indenture Supplements in
respect of the Units delivered on the Closing Date, to be duly filed, recorded
and deposited with the STB in conformity with 49 U.S.C. Section 11301 and with
the Registrar General of Canada pursuant to Section 90 of the Railway Act of
Canada and all necessary actions shall have been taken to cause publication of
notice of such deposit in The Canada Gazette in accordance with said Section 90
within 21 days after the Closing Date, and the Lessee shall furnish the
Indenture Trustee, the Owner Trustee and each Participant proof thereof.

         (c)     Representations and Warranties of Lessee.  On the Closing
Date, the representations and warranties of the Lessee contained in Section 3.2
and Section 3.4(b) hereof shall be true and correct in all material respects as
of the Closing Date as though then made on and as of such date, except to the
extent that such representations and warranties relate solely to an earlier
date (in which case such representations and warranties were true and correct
on and as of such earlier date), and the Owner Trustee, the Indenture Trustee
and each Participant shall have received an Officer's Certificate dated such
date from the Lessee certifying to the foregoing matters, and the Lessee shall
have performed and complied with all agreements and conditions herein contained
which are required to be performed or complied with by the Lessee on or before
said date.

         (d)     Representations and Warranties of Owner Trustee.  On the
Closing Date, the representations and warranties of the Owner Trustee contained
in Section 3.1 and Section 3.4(a) shall be true and correct in all material
respects as of the Closing Date as though then made on and as of such date
except to the extent that such representations and warranties relate solely to
an earlier date (in which case such representations and warranties were true
and correct on and as of such earlier date), and the Lessee, the Indenture
Trustee, the Pass Through Trustee and each Participant shall have received an
Officer's Certificate dated such date from the Owner Trustee and the Owner
Trustee shall have performed and complied with all agreements and conditions
herein contained which are required to be performed or complied with by the
Owner Trustee on or before said date.

         (e)     Opinions of Counsel.  On the Closing Date, the Owner Trustee,
the Indenture Trustee and each Participant shall have received the favorable
written opinion of each of (i) the Lessee's special counsel and counsel for the
Lessee (which counsel shall be the General Counsel or Assistant General Counsel
of the Parent), (ii) counsel to the Owner Trustee, (iii) special counsel and
counsel to the Owner Participant, (iv) counsel to the Pass Through Trustee, (v)
counsel to the Indenture Trustee, (vi) special STB counsel and (vii) special
Canadian counsel, in form and substance satisfactory to each Participant;
provided that, except as otherwise provided herein, receipt by a party hereto
of a favorable written opinion from counsel to such party shall not be a
condition precedent to such party's obligations hereunder.





                                      24
<PAGE>   29
         (f)     Title.  On the Closing Date, after giving effect to the
transactions contemplated hereby, the Owner Trustee shall have all legal and
beneficial title to each Unit to be delivered on the Closing Date, free and
clear of all Liens (other than Permitted Liens of the type described in clause
(ii) with respect to sublessees, and in clauses (iii), (iv), (vi) and (vii) of
the definition thereof).

         (g)     Bill of Sale.  On the Closing Date the Lessee shall have
delivered to the Owner Trustee (with copies to the Indenture Trustee and each
Participant) the Bill of Sale, in form and substance reasonably satisfactory to
the Owner Trustee, dated such date covering the Units to be settled for on such
date, transferring to the Owner Trustee legal and beneficial title to such
Units free of all claims, liens and encumbrances of any nature and warranting
to the Owner Trustee that at the time of delivery of each such Unit, the Lessee
had legal and beneficial title thereto and good and lawful right to sell the
same, and title thereto was free and clear of all Liens (other than Permitted
Liens of the type described in clause (ii) with respect to sublessees, and in
clauses (iii), (iv), (vi) and (vii) of the definition thereof).

         (h)     Insurance Certificate and Opinion.  On or before the Closing
Date, the Indenture Trustee and each Participant shall have received (x) any
certificate relating to insurance that is required pursuant to Section 12 of
the Lease and (y) a certificate from a nationally recognized insurance broker
in the form attached hereto as Exhibit A with respect to the public liability
insurance required by Section 12.1(b) of the Lease.

         (i)     Corporate Documents.  Each of the Participants shall have
received such documents and evidence with respect to the Lessee, the Owner
Participant, the Owner Trustee, the Pass Through Trustee and the Indenture
Trustee as the Participants may reasonably request in order to establish the
consummation of the transactions contemplated by this Agreement, the taking of
all corporate and other proceedings in connection therewith and compliance with
the conditions herein or therein set forth.

         (j)     No Threatened Proceedings.  No action or proceeding shall have
been instituted nor shall governmental action be threatened before any court or
governmental agency, nor shall any order, judgment or decree have been issued
or proposed to be issued by any court or governmental agency at the time of the
Closing Date, to set aside, restrain, enjoin or prevent the completion and
consummation of this Agreement or the transactions contemplated hereby.

         (k)     Representations and Warranties of Owner Participant.  On the
Closing Date, the representations and warranties of the Owner Participant
contained in Section 3.6 hereof shall be true and correct in all material
respects as of the Closing Date as though then made on and as of such date,
except to the extent that such representations and warranties relate solely to
an earlier date (in which case such representations and warranties were true
and correct on and as of such earlier date), and the Lessee, the Indenture
Trustee and the Pass Through Trustee shall have received an Officer's
Certificate dated such date from the Owner Participant certifying the foregoing
matters, and the Owner Participant shall have performed and complied with all





                                      25
<PAGE>   30
agreements and conditions herein contained which are required to be performed
or complied with by the Owner Participant on or before said date.

         (l)     Closing Notice.  The Indenture Trustee and the Participants
shall have received the Notice of Delivery required pursuant to Section 2.3.

         (m)     Representations and Warranties of the Indenture Trustee.  On
the Closing Date, the representations and warranties of the Indenture Trustee
contained in Section 3.3 hereof shall be true and correct in all material
respects as of the Closing Date as though then made on and as of such date,
except to the extent that such representations and warranties relate solely to
an earlier date (in which case such representations and warranties were true
and correct on and as of such earlier date), and the Lessee, the Owner Trustee
and each Participant shall have received an Officer's Certificate dated such
date from the Indenture Trustee certifying the foregoing matters, and the
Indenture Trustee shall have performed and complied with all agreements and
conditions herein contained which are required to be performed or complied with
by the Indenture Trustee on or before said date.

         (n)     Representations and Warranties of the Pass Through Trustee.
On the Closing Date, the representations and warranties of the Pass Through
Trustee contained in Section 3.5 hereof shall be true and correct in all
material respects as of the Closing Date as though then made on and as of such
date, except to the extent that such representations and warranties relate
solely to an earlier date (in which case such representations and warranties
were true and correct on and as of such earlier date), and the Lessee, the
Owner Trustee and the Owner Participant shall have received an Officer's
Certificate dated such date from the Pass Through Trustee certifying the
foregoing matters, and the Pass Through Trustee shall have performed and
complied with all agreements and conditions herein contained which are required
to be performed or complied with by the Pass Through Trustee on or before said
date.

         (o)     No Illegality.  No change shall have occurred after the date
of the execution and delivery of this Agreement in applicable law or
regulations thereunder or interpretations thereof by regulatory authorities
that, in the opinion of such Participant or its counsel, would make it illegal
for such Participant to enter into any transaction contemplated by the
Operative Agreements.

         (p)     Participants' Investments.  (i) The Owner Participant shall
have made available its Commitment in the amount specified in, and otherwise in
accordance with, Sections 2.2(a) and 2.3 and (ii) the Loan Participant shall
have made its Commitment in the amount specified in, and otherwise in
accordance with, Sections 2.2(b) and 2.3.

         (q)     Consents.  All approvals and consents of any trustees or
holders of any indebtedness or obligations of the Lessee which are required in
connection with the transactions contemplated by this Agreement, shall have
been duly obtained and be in full force and effect.





                                      26
<PAGE>   31
         (r)     Governmental Actions.  All actions, if any, required to have
been taken on or prior to the Closing Date in connection with the transactions
contemplated by this Agreement on the Closing Date shall have been taken by any
governmental or political agency, subdivision or instrumentality of the United
States and all orders, permits, waivers, exemptions, authorizations and
approvals of such entities required to be in effect on the Closing Date in
connection with the transactions contemplated by this Agreement on the Closing
Date shall have been issued, and all such orders, permits, waivers, exemptions,
authorizations and approvals shall be in full force and effect, on the Closing
Date.

         (s)     Tax Indemnity Agreement.  On or before the Closing Date, the
Tax Indemnity Agreement shall be satisfactory in form and substance to the
Owner Participant, shall have been duly executed and delivered by the Lessee
and, assuming due authorization, execution and delivery by the Owner
Participant, shall be in full force and effect.

         (t)     Appointment of Representative.  The Owner Trustee shall have
authorized its representative, who shall be an individual designated by the
Lessee and acceptable to the Owner Trustee, to accept the Units being delivered
on the Closing Date from Lessee and to deliver such Units to Lessee.  The
Lessee shall have authorized its representative (who shall be the same
individual designated by the Lessee under this paragraph) to accept delivery of
the Units from the Owner Trustee as Lessor pursuant to the Lease.

         (u)     Securities Act Compliance.  On or before the Closing Date, the
Registration Statement shall have become effective under the Securities Act of
1933, as amended (the "Act"); if filing of the Final Prospectus, or any
supplement thereto is required pursuant to Rule 424(b) as promulgated pursuant
to the Act, the Final Prospectus and any such supplement, shall have been filed
in the manner and within the time period required by Rule 424(b); and no stop
order suspending the effectiveness of the Registration Statement shall have
been issued and no proceedings for that purpose shall have been instituted or
threatened.

         Section 4.2.      Additional Conditions Precedent to Investment by
Pass Through Trustee.  The obligation of the Pass Through Trustee to purchase
and pay for the Equipment Notes to be purchased by it pursuant to Sections
2.2(b) and 2.3 on the Closing Date shall be subject to the additional
conditions that the Equipment Notes to be delivered on the Closing Date shall
have been duly authorized, executed and delivered to the Pass Through Trustee
by a duly authorized officer of the Owner Trustee and duly authenticated by the
Indenture Trustee and that on the Closing Date the Pass Through Trustee shall
have received the proceeds from the sale of the Pass Through Certificates.

         Section 4.3.      Additional Conditions Precedent to Investment by
Owner Participant.  The obligation of the Owner Participant to provide the
funds specified with respect to it in Sections 2.2(a) and 2.3 on the Closing
Date with respect to any Unit to be delivered on the Closing Date shall be
subject to the following additional conditions:





                                      27
<PAGE>   32
         (a)     Appraisal.  On or before the Closing Date, the Owner
Participant shall have received an opinion (the "Appraisal") of R.L. Banks and
Associates, Inc. [AMSOUTH: NORMAN W. SEIP & ASSOCIATES], satisfactory in form
and substance to the Owner Participant, concluding that:  (i) the fair market
value of the Equipment being delivered on the Closing Date is equal to the
Total Equipment Cost with respect to such Equipment; (ii) the Basic Rents for
the Basic Term are fair market rents; (iii) at the expiration of the Basic
Term, (A) without taking into account inflation or deflation from and after the
Closing Date or the existence of any purchase option, it is reasonable to
expect that the Equipment will have a fair market value of at least 20% of the
Total Equipment Cost with respect to such Equipment and (B) the remaining
economic life of such Equipment will be at least equal to 20% of the economic
life of such Equipment as estimated in the Appraisal; (iv) as of the Early
Purchase Date, the estimated fair market value of the Equipment being delivered
on the Closing Date, taking into account inflation or deflation from and after
the Closing Date, will not exceed the Early Purchase Price; (v) as of the end
of the Basic Term, the estimated fair market value of the Equipment being
delivered on the Closing Date, taking into account inflation or deflation from
and after the Closing Date, will be less than the Basic Term Purchase Price;
(vi) the Equipment being delivered on the Closing Date is not Limited Use
Property; (vii) Basic Rents from the Early Purchase Date to the end of the
Basic Term are fair market rents; and (viii) as of the end of the Basic Term,
the Fixed Rents of the Equipment being delivered on the Closing Date, taking
into account inflation or deflation from and after the Closing Date, will not
be less than the Fair Market Rental Values for such Equipment provided that the
Lessee makes no representation as to the fair market value, useful life or
estimated residual value of the Equipment, and the Lessee shall not be
responsible for, or incur any liabilities as a result of, the contents of such
Appraisal or report to which it relates or, except to the extent provided in
the Tax Indemnity Agreement, any information supplied by Lessee in connection
therewith.

         (b)     Opinion with Respect to Certain Tax Aspects.  On the Closing
Date, the Owner Participant shall have received the opinion of Thelen, Marrin,
Johnson & Bridges, addressed to the Owner Participant, in form and substance
satisfactory to the Owner Participant, containing such counsel's favorable
opinion with respect to such tax matters as the Owner Participant may
reasonably request.

         Section 4.4.      Conditions Precedent to the Obligation of the
Lessee.  The obligation of the Lessee with respect to the sale of the Units to
the Owner Trustee and acceptance of the Units under the Lease is subject to the
following conditions as of the Closing Date:

         (a)     Corporate Documents.  On or before the Closing Date, the
Lessee shall have received such documents and evidence with respect to the
Owner Participant, the Owner Trustee, the Indenture Trustee and the Pass
Through Trustee as the Lessee may reasonably request in order to establish the
consummation of the transactions contemplated by this Agreement, the taking of
all corporate and other proceedings in connection therewith and compliance with
the conditions herein or therein set forth.





                                      28
<PAGE>   33
         (b)     Operative Agreements.  On or before the Closing Date, the
Operative Agreements shall have been duly authorized, executed and delivered by
the respective party or parties thereto (other than the Lessee), and an
executed counterpart of each thereof shall have been delivered to the Lessee or
its special counsel.

         (c)     Representations and Warranties True.  On the Closing Date, the
representations and warranties of the Owner Trustee, the Indenture Trustee, the
Pass Through Trustee and the Owner Participant contained in Section 3 hereof
shall be true and correct in all material respects as of the Closing Date as
though made on and as of such date, and the Lessee shall have received an
Officer's Certificate dated such date from each of the Owner Trustee as
described in Section 4.1(d), the Owner Participant as described in Section
4.1(k), the Indenture Trustee as described in Section 4.1(m) and the Pass
Through Trustee as described in Section 4.1(n), addressed to the Lessee and
certifying as to the foregoing matters insofar as they relate to the Owner
Trustee, the Owner Participant, the Indenture Trustee and the Pass Through
Trustee, as the case may be.

         (d)     Opinions of Counsel.  On the Closing Date, the Lessee shall
have received the opinions of counsel referred to in Section 4.1(e) (other than
that set forth in clause (i) therein), addressed to the Lessee.

         (e)     No Threatened Proceedings.  No action or proceeding shall have
been instituted nor shall governmental action be threatened before any court or
governmental agency, nor shall any order, judgment or decree have been issued
or proposed to be issued by any court or governmental agency at the time of the
Closing Date, to set aside, restrain, enjoin or prevent the completion and
consummation of this Agreement or the transactions contemplated hereby.

         (f)     Participants' Investments.  (i) The Owner Participant shall
have made available its Commitment in the amount specified in, and otherwise in
accordance with, Sections 2.2(a) and 2.3 and (ii) the Loan Participant shall
have made its Commitment in the amount specified in, and otherwise in
accordance with, Sections 2.2(b) and 2.3.

SECTION 5.       FINANCIAL AND OTHER REPORTS OF THE LESSEE.

         The Lessee agrees that it will furnish directly to each Participant
the following:

         (a)     unless included in a Form 10-Q delivered under clause (c)
below within the 60-day period specified in this clause (a), as soon as
available and in any event within 60 days after the end of each quarterly
period, except the last, of each fiscal year, consolidated balance sheets of
each of the Lessee and Parent and their respective consolidated Subsidiaries as
at the end of such period, together with the related consolidated statements of
income and cash flows of each of the Lessee and Parent and their respective
consolidated Subsidiaries for the period beginning on the first day of such
fiscal year and ending on the last day of such quarterly period, setting forth
in each case (except for the consolidated balance sheet) in comparative form
the





                                      29
<PAGE>   34
figures for the corresponding periods of the previous fiscal year, all in
reasonable detail and prepared in accordance with generally accepted accounting
principles;

         (b)     unless included in a Form 10-K delivered under clause (c)
below within the 120-day period specified in this clause (b), as soon as
available and in any event within 120 days after the last day of each fiscal
year, a copy of each of the Lessee's and Parent's annual audited report
covering the operations of the Lessee and Parent and their respective
consolidated Subsidiaries, including consolidated balance sheets, and related
consolidated statements of income and retained earnings and consolidated
statement of cash flows of each of the Lessee and Parent and their respective
consolidated Subsidiaries for such fiscal year, setting forth in each case in
comparative form the figures for the previous fiscal year, all in reasonable
detail and prepared in accordance with generally accepted accounting principles
applied on a consistent basis, which statements will have been certified by a
firm of independent public accountants of recognized national standing selected
by the Lessee;

         (c)     as soon as available, one copy of each document filed by the
Lessee or Parent with the Securities and Exchange Commission or any successor
agency pursuant to Section 13(a), 13(c), 14 or 15(d) (or any successor
sections) of the Securities Exchange Act of 1934, as amended (or any successor
statute) (excluding such documents or portions thereof which are treated as
confidential and not available to the public, in accordance with applicable
law, by the Securities and Exchange Commission);

         (d)     within the time period prescribed in subparagraph (b) above, a
certificate, signed by the Treasurer or principal financial officer of the
Lessee, to the effect that the signer has reviewed the activities of the Lessee
during the immediately preceding fiscal year and that he is not aware of any
default in compliance by the Lessee with any of the covenants, terms and
provisions of the Participation Agreement or the Lease (except as specified),
and if a Lease Default or Lease Event of Default shall exist, specifying such
Lease Default or Lease Event of Default and the nature and status thereof; and

         (e)     promptly, such additional information with respect to the
financial condition or business of the Lessee as any Participant may from time
to time reasonably request.

SECTION 6. CERTAIN COVENANTS OF THE PARTICIPANTS, THE TRUSTEES AND THE
           LESSEE.

         Section 6.1.      Restrictions on Transfer of Beneficial Interest.
The Owner Participant agrees that it shall not sell, convey, assign, pledge,
mortgage or otherwise transfer any of its Beneficial Interest (collectively,
for purposes of this Section 6.1, a "transfer") prior to the expiration or
earlier termination of the Lease Term without the Lessee's consent (which
consent shall not be unreasonably withheld); provided, however, that no such
consent shall be required if the following conditions are satisfied:





                                      30
<PAGE>   35
         (a)     the Person to whom such transfer is to be made (a
"Transferee") is (i) an institutional or corporate investor with net worth or,
in the case of a bank or lending institution, combined capital and surplus at
the time of such transfer, of at least US$75,000,000 determined in accordance
with generally accepted accounting principles or (ii) any Affiliate of any such
institutional or corporate investor if such investor guarantees the obligations
so assumed by such Affiliate pursuant to an instrument or instruments
reasonably satisfactory to the Lessee, the Owner Trustee and the Indenture
Trustee or (iii) an Affiliate of the Owner Participant; provided that in the
event of a transfer pursuant to clause (iii) which does not qualify under
clauses (i) or (ii), the Owner Participant shall remain liable for all of its
obligations under this Agreement and the other Operative Agreements;

         (b)     so long as no Lease Event of Default has occurred and is
continuing, neither the Transferee nor any of its Affiliates shall be a direct
competitor (other than as a passive investor or loan participant in the
financing of equipment or facilities used in full service railcar leasing) of
the Lessee in the business of leasing rail cars under full service operating
leases; provided, that no Transferee or Affiliate thereof shall be deemed to
(i) be engaged in full service railcar leasing or (ii) hold (directly or
indirectly) any material interest in any business that is competitive with
Lessee's full service railcar leasing business, solely by reason of any sale,
lease or other disposition (or any actions in furtherance of any of the
foregoing), of any of such Person's interest in any equipment or facilities
directly or indirectly owned, leased or otherwise controlled pursuant to any
such Person's passive investment or loan participation in the financing of any
such equipment or facilities used in full service railcar leasing or any
re-leasing or sale of any rail equipment which is returned to or repossessed by
or on behalf of the Owner Participant or any Affiliate of the Owner Participant
from a lessee or borrower in connection with a lease financing or lender
transaction entered into by the Owner Participant or such Affiliate as a
passive lessor, investor or lender;

         (c)     the Indenture Trustee, the Owner Trustee and the Lessee shall
have received 10 days prior written notice of such transfer specifying the name
and address of any proposed transferee and such additional information as shall
be necessary to determine whether the proposed transfer satisfies the
requirements of this Section 6.1;

         (d)     [RESERVED];

         (e)     such Transferee enters into an agreement or agreements in form
and substance reasonably satisfactory to the Lessee, the Owner Trustee and the
Indenture Trustee whereby such Transferee confirms that it shall be deemed a
party to this Agreement and each other Operative Agreement to which the
transferring Owner Participant is a party, and agrees to be bound by all the
terms of, and to undertake all of the obligations and liabilities of the
transferring Owner Participant contained in, this Agreement and such other
Operative Agreements and in which the Transferee shall make representations and
warranties comparable to those of the Owner Participant contained herein and
therein;





                                      31
<PAGE>   36
         (f)     an opinion of counsel of the Transferee (which counsel shall
be reasonably acceptable to the Lessee, the Owner Trustee and the Indenture
Trustee and which may be internal counsel of the Transferee), confirming (i)
the existence, power and authority of, and due authorization, execution and
delivery of all relevant documentation by, the Transferee (with appropriate
reliance on certificates of corporate officers or public officials as to
matters of fact), (ii) that each agreement referred to in subparagraph (e)
above is the legal, valid, binding and enforceable obligation of the Transferee
(subject to customary qualifications as to bankruptcy and equitable principles)
and (iii) compliance of the transfer with applicable laws and regulations
including Federal securities laws and securities laws of the Transferee's
domicile and other jurisdictions reasonably identified by the Lessee, the Owner
Trustee or the Indenture Trustee as potentially applicable to the transfer,
shall be provided, prior to such transfer, to the Lessee, the Owner Trustee and
the Indenture Trustee, which opinion shall be in form and substance reasonably
satisfactory to each of them;

         (g)     such transfer complies in all respects with and does not
violate any applicable provisions of the federal securities law and the
securities law of any applicable state;

         (h)     except as specifically consented to in writing by the Lessee,
the Owner Trustee and the Indenture Trustee, the terms of the Operative
Agreements shall not be altered;

         (i)     in the case of a transfer by the original Owner Participant,
the original Owner Participant shall have delivered on a timely basis the
certificates required pursuant to Section 7.1(c)(vi) hereof and Section 6 of
the Tax Indemnity Agreement;

         (j)     no Owner Participant shall hold less than 10% of the
Beneficial Interest after giving effect to such transfer; and the Beneficial
Interest shall be held by not more than three  Owner Participants at any one
time; provided that for the purpose of calculating the number of Owner
Participants under this paragraph (j), any Owner Participants that are
Affiliates of each other shall be considered to be one Owner Participant;

         (k)     all reasonable expenses of the parties hereto (including,
without limitation, reasonable legal fees and expenses of special counsel)
incurred in connection with each transfer of such Beneficial Interest shall be
paid by the transferring Owner Participant or the Transferee;

         (l)     such transfer either (i) does not involve the use of any funds
which constitute assets of an employee benefit plan subject to Title I of ERISA
or Section 4975 of the Code or (ii) will not constitute a prohibited
transaction under ERISA;

         (m)     as a result of and following such transfer, no Indenture
Default attributable to the Owner Participant or the Owner Trustee shall have
occurred and be continuing;

         (n)     as long as no Lease Event of Default has occurred and is
continuing, the transfer does not involve the sale of the stock of any Owner
Participant the sole asset of which is all or





                                      32
<PAGE>   37
a portion of the Beneficial Interest to, or the merger of any such Owner
Participant with or into, any Person described in paragraph (b) of this Section
6.1;

         (o)     the transferee (i) is a "United States Person" within the
meaning of Section 7701(a)(30) of the Code or (ii) is engaged in a United
States trade or business for purposes of Subtitle A, Chapter 1, Subchapter N of
the Code and is acquiring such Beneficial Interest in connection with such
trade or business; and

         (p)     the Owner Participant shall deliver an Officer's Certificate
certifying as to compliance with the transfer requirements contained herein.

Upon any such transfer, (i) except as the context otherwise requires, such
Transferee shall be deemed the "Owner Participant" for all purposes, and shall
enjoy the rights and privileges and perform the obligations of the Owner
Participant to the extent of the interest transferred hereunder and under each
other Operative Agreement to which the Owner Participant is a party, and,
except as the context otherwise requires, each reference in this Agreement and
each other Operative Agreement to the "Owner Participant" shall thereafter be
deemed to include such Transferee for all purposes to the extent of the
interest transferred, and (ii) the transferor, except to the extent provided in
Section 6.1(k) hereof and except in the case of a transfer to a Transferee
described in the proviso to Section 6.1(a)(iii) hereof, shall be released from
all obligations hereunder and under each other Operative Agreement to which
such transferor is a party or by which such transferor is bound to the extent
such obligations are expressly assumed by a Transferee; and provided, further,
that in no event shall any such transfer or assignment waive or release the
transferor from any liability on account of any breach existing prior to such
transfer of any of its representations, warranties, covenants or obligations
set forth in the Operative Agreements or for any fraudulent or willful
misconduct.  Any transfer or assignment of the Beneficial Interest in violation
of this Section 6.1 shall be of no effect as between the parties to this
Agreement.  Subject to the rights of the Lessee pursuant to subsection 6.1(n),
the provisions of this Section 6.1 shall not be construed to restrict the Owner
Participant from consolidating with or merging into any other corporation or
restricting another corporation from merging into or consolidating with the
Owner Participant.  No consent of the Lessee otherwise required hereunder shall
be required if any Lease Event of Default shall have occurred and be
continuing.  Notwithstanding any transfer, the transferor Owner Participant
shall be entitled to all benefits accrued and all rights vested prior to such
transfer, including, without limitation, rights to indemnification under any
Operative Agreements.

         Section 6.2.      Lessor's Liens Attributable to the Owner
Participant.  The Owner Participant hereby unconditionally agrees with and for
the benefit of the other parties to this Agreement that the Owner Participant
will not directly or indirectly create, incur, assume or suffer to exist any
Lessor's Liens on or against any part of the Trust Estate or the Equipment
attributable to the Owner Participant, and the Owner Participant agrees that it
will, at its own cost and expense, take such action as may be necessary to duly
discharge and satisfy in full any such Lessor's Lien (by bonding or otherwise,
so long as Lessee's operation and use of the





                                      33
<PAGE>   38
Equipment and the interest of the Indenture Trustee in the Indenture Estate is
not impaired); provided that the Owner Participant may contest any such
Lessor's Lien in good faith by appropriate proceedings so long as such
proceedings do not involve any material danger of the sale, forfeiture or loss
of the Equipment or any interest therein or interference with the use,
operation, or possession of the Equipment by the Lessee under the Lease or the
rights of the Indenture Trustee under the Indenture.

         Section 6.3.      Lessor's Liens Attributable to the Owner Trustee.
The Owner Trustee, in its individual capacity, hereby unconditionally agrees
with and for the benefit of the other parties to this Agreement that the Owner
Trustee in its individual capacity will not directly or indirectly create,
incur, assume or suffer to exist any Lessor's Liens on or against any part of
the Trust Estate or the Equipment attributable to the Owner Trustee in its
individual capacity, and the Owner Trustee in its individual capacity agrees
that it will, at its own cost and expense, take such action as may be necessary
to duly discharge and satisfy in full any such Lessor's Lien attributable to
the Owner Trustee in its individual capacity (by bonding or otherwise, so long
as Lessee's operation and use of the Equipment and the interest of the
Indenture Trustee in the Indenture Estate is not impaired); provided that the
Owner Trustee may contest any such Lessor's Lien in good faith by appropriate
proceedings so long as such proceedings do not involve any material danger of
the sale, forfeiture or loss of the Equipment or any interest therein or
interference with the use, operation, or possession of the Equipment by the
Lessee under the Lease or the right of the Indenture Trustee under the
Indenture.

     Section 6.4.      Liens Created by the Indenture Trustee and the Loan
                       Participant.

         (a)     The Indenture Trustee, in its individual capacity, covenants
and agrees with the Lessee, the Owner Trustee, the Owner Participant and the
Loan Participant that it shall not cause or permit to exist any Lien on the
Equipment or all or any portion of any Trust Estate or the Indenture Estate
arising as a result of (i) claims against the Indenture Trustee in its
individual capacity not related to its interest in the Equipment and any Trust
Estate, or to the administration of the Indenture Estate pursuant to the
Indenture, (ii) acts of the Indenture Trustee in its individual capacity not
contemplated by, or failure of the Indenture Trustee to take any action it is
expressly required to perform by, the Operative Agreements, (iii) claims
against the Indenture Trustee in its individual capacity relating to Taxes or
expenses that are not indemnified against by the Lessee pursuant to Section 7
attributable to the actions of the Indenture Trustee, solely in its individual
capacity, or (iv) claims against the Indenture Trustee arising out of the
transfer by the Indenture Trustee of all or any portion of its interest in the
Equipment, the Indenture Estate or the Operative Agreements, other than a
transfer permitted by the Operative Agreements and that the Indenture Trustee
will, at its own cost and expense (and without any right of reimbursement from
any other party hereto), promptly take such action as may be necessary duly to
discharge any such Lien.

         (b)     The Loan Participant covenants and agrees with the Lessee, the
Owner Trustee, the Owner Participant and the Indenture Trustee that it shall
not cause or permit to exist any





                                      34
<PAGE>   39
Lien on the Equipment or all or any portion of any Trust Estate or the
Indenture Estate arising as a result of (i) claims against such Loan
Participant not related to its interest in the Equipment and any Trust Estate,
(ii) acts of such Loan Participant not contemplated by, or failure of such Loan
Participant to take any action it is expressly required to perform by, the
Operative Agreements, (iii) claims against such Loan Participant relating to
Taxes or expenses that are not indemnified against by the Lessee pursuant to
Section 7, or (iv) claims against such Loan Participant arising out of the
transfer by such Loan Participant of all or any portion of its interest in the
Equipment, the Indenture Estate or the Operative Agreements, other than a
transfer permitted by the Operative Agreements and that such Loan Participant
will, at its own cost and expense (and without any right of reimbursement from
the Lessee), promptly take such action as may be necessary duly to discharge
any such Lien.

         Section 6.5.      Covenants of Owner Trustee, Owner Participant and
Indenture Trustee.  The Owner Participant, and the Owner Trustee in its
individual and trust capacity, hereby agree, as to their own actions only and
severally and not jointly, with the Lessee, the Loan Participant and the
Indenture Trustee (a) not to amend, supplement, or otherwise modify any
provision of the Trust Agreement in such a manner as to adversely affect the
rights of the Lessee, the Loan Participant or the Indenture Trustee without the
prior written consent of such party and (b) not to terminate or revoke the
Trust Agreement or the trusts created by the Trust Agreement prior to the
payment in full and discharge of the Equipment Notes and all other indebtedness
secured by the Indenture and the final discharge thereof pursuant to Section
7.1 thereof or prior to the expiration or early termination of the Lease.  Each
of the Owner Trustee and the Indenture Trustee agrees, for the benefit of the
Lessee and the Owner Participant, to comply with the provisions of the
Indenture and not to amend, supplement, or otherwise modify any provision of
the Indenture except in the manner provided in Article IX thereof.
Notwithstanding any provision herein or in any of the Operative Agreements to
the contrary, the Indenture Trustee's obligation to take or refrain from taking
any actions, or to use its discretion (including, but not limited to, the
giving or withholding of consent or approval and the exercise of any rights or
remedies under such Operative Agreements), and any liability therefor, shall,
in addition to any other limitations provided herein or in the other Operative
Agreements, be limited by the provisions of the Indenture.

         Section 6.6.      Amendments to Operative Agreements.  The Trustees
and Participants will not terminate the Operative Agreements to which the
Lessee is not or will not be a party, or amend, supplement, waive or modify
such Operative Agreements in any manner that increases the obligations or
liabilities, or decreases the rights, of the Lessee under such Operative
Agreements, except in accordance with such Operative Agreements in effect on
the date hereof (as amended, modified or supplemented from time to time in
accordance with the terms hereof and of such Operative Agreements).  The Owner
Participant and the Trustees (as applicable) agree that, in any event, they
will not amend Section 2.10 or Article IX of the Indenture or Article IX of the
Trust Agreement without the prior written consent of the Lessee.





                                      35
<PAGE>   40
         Section 6.7.      Covenant of the Lessee.  The Lessee hereby agrees
with the Owner Trustee, each Participant and the Indenture Trustee to deliver
to the Owner Trustee on the Closing Date the Bill of Sale evidencing the
purchase and transfer of title of each Unit to be settled for on the Closing
Date.

         Section 6.8.      Merger Covenant.  The Lessee shall not consolidate
with or merge into any other Person, or permit any other Person to merge into
it, or convey, transfer or lease all or substantially all of its assets to any
Person unless (i) the Person formed by such consolidation or surviving such
merger (if other than the Lessee) or the Person which acquires by conveyance,
transfer or lease of all or substantially all of the assets of the Lessee is a
corporation organized and existing under the laws of the United States or any
state thereof or the District of Columbia and shall execute and deliver to the
Owner Trustee, the Owner Participant and the Indenture Trustee an agreement in
form and substance reasonably satisfactory to such parties containing the
assumption by such successor corporation of the due and punctual performance
and observance of each covenant and condition of this Agreement and each of the
other Lessee Agreements to be performed or observed by the Lessee, (ii)
immediately prior to and immediately after giving effect to such transaction,
no Lease Default or Lease Event of Default shall have occurred, whether as a
result of such consolidation or merger or such conveyance, transfer or lease or
otherwise, (iii) the Lessee shall have made all filings necessary or
appropriate in the reasonable opinion of the Owner Trustee and the Indenture
Trustee in order to preserve and protect the rights of the Lessor under the
Lease and of the Indenture Trustee under the Indenture, (iv) there shall have
been delivered to the Owner Participant, the Owner Trustee and the Indenture
Trustee an Officer's Certificate of the successor to the Lessee (or such Person
as is the surviving corporation) and an opinion of counsel (which may be such
Person's in-house counsel) in form and substance reasonably satisfactory to the
Owner Participant, the Owner Trustee and the Indenture Trustee, each stating
that such consolidation, merger, conveyance, transfer or lease and the
assumption agreement mentioned in clause (i) above comply with this Section
6.8, and (v) if the Person (x) formed by such consolidation or surviving such
merger (if other than the Lessee) or the Person which acquires by conveyance,
transfer or lease of all or substantially all of the assets of the Lessee is
not an Affiliate of the Lessee, the aggregate net worth of such surviving or
acquiring Person immediately after such merger, consolidation or acquisition
(determined in accordance with generally accepted accounting principles) is not
less than the consolidated net worth of the Lessee immediately prior to such
merger, consolidation or acquisition, or (y) with which Lessee consolidates or
merges or which acquires by conveyance, transfer or lease of all or
substantially all of the assets of the Lessee is an Affiliate of the Lessee,
such Person, immediately prior to such consolidation, merger or acquisition,
has a positive net worth (determined in accordance with generally accepted
accounting principles).  Upon such consolidation or merger, or any conveyance,
transfer or lease of all or substantially all of the assets of the Lessee in
accordance with this Section 6.8, the successor corporation formed by such
consolidation or into which the Lessee is merged or to which such conveyance,
transfer or lease is made shall succeed to, and be substituted for, and may
exercise every right and power of, the Lessee under this Agreement and the
other Operative





                                      36
<PAGE>   41
Agreements with the same effect as if such successor corporation had been named
as the Lessee herein.

         Section 6.9.      Lessee's Purchase in Certain Circumstances.  If an
Owner Participant or any Affiliate thereof is or acquires, is acquired by,
merges or otherwise consolidates with any company or Affiliate thereof engaged
in full service railcar leasing, whether or not a direct competitor to the
Lessee or any Affiliate thereof, or any Person that has a material interest
(whether held directly or indirectly) in an enterprise that engages in a
business that is competitive with the Lessee's full service railcar leasing
business, the Lessee may, no later than one year after a Responsible Officer of
the Lessee has actual knowledge of such event, request that such Owner
Participant transfer its Beneficial Interest pursuant to Section 6.1.  If such
Owner Participant has not transferred its Beneficial Interest within 180 days
of such request, the Lessee may, on a Determination Date which is designated by
the Lessee by written notice to the Owner Trustee and the Indenture Trustee not
less than 25 days prior to such Determination Date, purchase a number of the
Units of Equipment equal to the percentage of the Equipment that the portion of
the Beneficial Interest held by such Owner Participant bears to 100% of the
Beneficial Interest for a purchase price equal to the Termination Value for
such Units calculated as of such Determination Date, together with all other
amounts due and owing by the Lessee under the Operative Agreements with respect
to such Units, including, without limitation, all accrued and unpaid Basic Rent
therefor as of such Determination Date (exclusive of any in advance Basic Rent
due on such date) and any Make-Whole Amount then payable on the Equipment Notes
pursuant to Section 2.10(c) of the Indenture with respect to such Units;
provided, that an institutional investor which is a passive investor in the
financing of equipment or facilities used in full service railcar leasing shall
not, solely by reason of such investment, be deemed to be engaged in such
businesses; provided, further, that none of any Owner Participant or Affiliate
thereof shall be deemed to (i) be engaged in full service railcar leasing or
(ii) hold (directly or indirectly) any material interest in any business that
is competitive with the Lessee's full service railcar leasing business, solely
by reason of any sale, lease or other disposition (or any actions in
furtherance of any of the foregoing), of any of such Person's interest in any
equipment or facilities directly or indirectly owned, leased or otherwise
controlled pursuant to any such Person's passive investment in the financing of
any such equipment or facilities used in full service railcar leasing.  In the
event that such Owner Participant hereinabove referred to holds less than 100%
of the Beneficial Interest, the determination as to which Units are to be
purchased under this Section 6.9 shall be made on a random or other basis (in
each case reasonably acceptable to the Lessor) without discrimination based on
maintenance status, operating condition of the Units in question or otherwise
and the notice hereinabove referred to shall describe such manner in which the
Lessee proposes to determine which Units are to be purchased hereunder.

         If the Lessee elects to exercise the purchase option provided for in
this Section 6.9, the Lessee shall, as the purchase price therefor, in the sole
discretion of the Lessee, either (i) pay the Termination Value, as specified in
the paragraph above, with respect to such Units, together with all other
amounts due and owing by the Lessee under the Operative Agreements, or (ii) pay





                                      37
<PAGE>   42
the difference between the Termination Value and the portion of the outstanding
principal amount of the Equipment Notes which relates to such Units as of the
Determination Date specified by the Lessee in the first sentence of this
Section 6.9 and assume on a full resource basis, and indemnify the Lessor
against, all of the Owner Trustee's obligations under the Indenture in respect
of such portion of the indebtedness evidenced by such Equipment Notes;
provided, that, following such assumption, the purchased Units shall remain
subject to the lien of a separate indenture similar to the Indenture pursuant
to Section 3.06 of the Indenture.  The Lessee will make the payments required
by foregoing clause (i) or assume such portion of the indebtedness evidenced by
the Equipment Notes which relates to such Units as provided in foregoing clause
(ii) on the Determination Date designated in the first sentence of Section 6.9
in immediately available funds against delivery of a bill of sale transferring
and assigning to the Lessee all right, title and interest of the Lessor in and
to the Units on an "as-is" "where-is" basis and containing a warranty against
Lessor's Liens.  In such event, the costs of preparing the bill of sale and all
other documentation relating to such purchase and the costs of any necessary
filings related thereto will be borne by the Lessee.  If the Lessee shall fail
to fulfill its obligations under this second paragraph of Section 6.9, all of
the Lessee's obligations under the Lease and the Operative Agreements,
including, without limitation, the Lessee's obligation to pay installments of
Rent, with respect to the Units in question shall continue.

         Section 6.10.     Owner Participant an Affiliate of Lessee.  If at any
time the original or any successor Owner Participant shall be an Affiliate of
the Lessee, such Owner Participant and the Lessee agree that notwithstanding
Section 9.05 of the Indenture they will not vote its Beneficial Interest to
modify, amend or supplement any provision of the Lease or this Agreement or
give, or permit the Owner Trustee to give, any consent, waiver, authorization
or approval thereunder if any such action would adversely affect in a material
manner the Indenture Trustee or any holder of an Equipment Note unless such
action shall have been consented to by a Majority in Interest.

         Section 6.11.     Corporate Existence; Place of Business.  The Lessee
shall at all times maintain its corporate existence except as permitted by
Section 6.8; and it shall do or cause to be done all things necessary to
preserve and keep in full force and effect its corporate rights, powers,
privileges and franchises except for any corporate right, power, privilege or
franchise that it in good faith determines is no longer necessary or desirable
in the conduct of its business.

         Section 6.12.     No Impairment of Warranties.  From and after the
Closing Date and throughout the Lease Term, the Lessee shall not take any
action (or fail to take any action) if the result of such action (or failure to
act) would abrogate or invalidate or otherwise materially adversely affect the
validity of any warranties applicable to the Units which would otherwise be
available with respect to the Units.





                                      38
<PAGE>   43
SECTION 7.  LESSEE'S INDEMNITIES.

         Section 7.1.      General Tax Indemnity.

         (a)     Tax Indemnitee Defined.  For purposes of this Section 7.1,
"Tax Indemnitee" means the Owner Participant, its Affiliates, the Owner Trustee
both in its individual capacity and as trustee, the Indenture Trustee both in
its individual capacity and as trustee, the Pass Through Trustee both in its
individual capacity and as trustee, each of their respective successors or
assigns permitted under the terms of the Operative Agreements, any officer,
director, employee or agent of any of the foregoing, the Trust Estate and the
Indenture Estate.

         (b)     Taxes Indemnified.  All payments by the Lessee to any Tax
Indemnitee in connection with the transactions contemplated by the Operative
Agreements shall be free of withholdings of any nature whatsoever (and at the
time that the Lessee is required to make any payment upon which any withholding
is required the Lessee shall pay an additional amount such that the net amount
actually received will, after such withholding and on an After-Tax Basis, equal
the full amount of the payment then due) and shall be free of expense to each
Tax Indemnitee for collection or other charges, provided, however, that no such
additional amounts shall be paid by the Lessee and the Lessee assumes no
responsibility regarding any withholdings (i) imposed by reason of any transfer
of the Equipment or any interest in the Operative Agreements by the Lessor or
the Owner Participant other than any Transfer which occurs during the
continuance of a Lease Default or Lease Event of Default, (ii) imposed solely
by reason of a nexus between the affected Tax Indemnitee and the jurisdiction
imposing such withholding which nexus is unrelated to the transactions
contemplated by the Operative Agreements, or (iii) imposed by the United States
by reason of the status of the Tax Indemnitee as a foreign corporation or
nonresident individual.  If, for any reason, the Lessee is required to make any
payment to a taxing authority with respect to, or as a result of, any
withholding tax imposed on any Tax Indemnitee in respect of the transactions
contemplated by the Operative Agreements which withholding tax is not the
responsibility of the Lessee under this Section 7.1 then such Tax Indemnitee
shall pay to the Lessee within 30 days of a demand an amount which equals the
amount paid by the Lessee with respect to, or as a result of, such withholding
tax, plus interest computed at such Tax Indemnitee's cost of funds rate during
the period commencing on the date the Lessee shall have paid an additional
amount pursuant to the first sentence of this paragraph and ending on the date
the Lessee actually receives such payment.

         Subject to the exclusions stated in subsection (c) below, the Lessee
agrees to indemnify and hold harmless each Tax Indemnitee, on an After-Tax
Basis, taking into account the income tax consequences to the Tax Indemnitee of
the accrual or receipt of an indemnity payment, against all fees (including,
without limitation, license, documentation or other fees and registration
fees), taxes (including, without limitation, income, gross receipts, franchise,
sales, use, rental, turnover, business, occupation, excise, value-added,
tangible and intangible personal property and stamp taxes), levies,
assessments, imposts, duties, charges or withholdings of any nature, together
with any and all penalties, additions to tax, fines or interest thereon
("Taxes")





                                      39
<PAGE>   44
imposed upon any Tax Indemnitee, the Lessee or any Person in possession of the
Equipment or all or any part of the Equipment by any federal, state or local
government, political subdivision, or taxing authority in the United States or
its possessions, by any government or taxing authority of or in a foreign
country or by any international authority, upon, with respect to or in
connection with:

                 (i)       the Equipment or any part of any of the Equipment or
         interest therein;

                 (ii)      the acquisition, financing, ownership, leasing,
         possession, purchase, acceptance, rejection, condition, registration,
         return, use, storage, operation, return, transfer of title,
         maintenance, repair, improvement, replacement, substitution, delivery,
         redelivery, non-delivery, transport, preparation, assembly, insurance,
         construction, manufacture, insuring, modification, transfer, control,
         occupancy, servicing, mortgaging, location, refinancing, disposition,
         subleasing, repossession, abandonment, sale or other application or
         disposition of or with respect to the Equipment or any part of any of
         the Equipment or interest therein;

                 (iii)     the rental payments, receipts on earnings arising
         from any Unit of Equipment or payable pursuant to the Lease;

                 (iv)      the Equipment Notes, their issuance, acquisition,
         transfer or refinancing or (as between the Lessee and any Tax
         Indemnitee other than the Indenture Estate) the payment of principal,
         interest or premium or other amounts with respect thereto; and

                 (v)       the Operative Agreements or otherwise in connection
         with the transactions contemplated thereby.

         (c)     Taxes Excluded.  The indemnity provided for in paragraph (b)
         above shall not extend to any of the following:

                 (i)       In the case of the Owner Participant, the Owner
         Trustee or the Trust Estate, Income Taxes (as defined in Section
         7.1(l), below) imposed by (A) the United States federal government
         (provided that this subclause (A) shall not be construed as preventing
         Lessee from recouping any such deduction or withholding from the
         Indenture Trustee, the Pass Through Trustee or any Certificateholder
         or as giving to the Indenture Trustee a right to indemnification by
         the Lessee for Taxes payable pursuant to Section 5.09 of the
         Indenture), (B) any state or local tax jurisdiction in the United
         States (unless such Tax Indemnitee would not have been subject to tax
         in such jurisdiction but for this transaction (including the operation
         or presence of any Unit (or part thereof) and other leasing
         transactions between the Lessee (or its Affiliates) and the Owner
         Participant (or its Affiliates) or the Lessee making payment from or
         performing other actions in such jurisdiction)), provided, however,
         that for purposes of this clause (B), the determination of (y) whether
         any Tax Indemnitee is treated as being incorporated or having its
         principal





                                      40
<PAGE>   45
         place of business in any state or local tax jurisdiction under this
         clause (B), or (z) whether any such Tax Indemnitee is deemed to be
         subject to tax in any state or local tax jurisdiction but for this
         transaction under this clause (B), shall be made by treating each
         corporation which is a Tax Indemnitee on a stand-alone basis and
         without regard to any Affiliates, related Tax Indemnitees or other
         entities, except to the extent that such Tax Indemnitee files combined
         or consolidated tax returns in such state or local jurisdiction,
         respectively, with one or more Affiliates which are also Tax
         Indemnitees, (C) any foreign government or any political subdivision
         or taxing authority thereof or any territory or possession of the
         United States or by any international authority except to the extent
         such Income Taxes would not have been imposed by such jurisdiction but
         for the use, location, operation, presence or registration of any Unit
         or part thereof in such jurisdiction or the activities of the Lessee
         or any of its Affiliates in such jurisdiction or the making of any
         payments from such jurisdiction by or on behalf of the Lessee pursuant
         to the Operative Agreements or any other nexus between such
         jurisdiction and the transactions contemplated by the Operative
         Agreements (other than such nexus as may result solely from the
         activities, presence, ownership or receipts of such Tax Indemnitee in
         each case unrelated to the Operative Agreements or transactions
         contemplated thereby) or (D) any government or jurisdiction described
         in (A), (B) or (C) of this clause (i) because the applicable Tax
         Indemnitee is not a resident of the United States for tax purposes.

                 (ii)      Taxes imposed with respect to any period after the
         earliest of the applicable dates of (x) the return of possession of
         the Equipment to the Owner Participant or the placement of the
         Equipment in storage at the request of the Owner Participant, in
         either case pursuant to Section 6 of the Lease, (y) the termination of
         the Lease Term pursuant to Section 22.1 or Section 22.3 of the Lease,
         or (z) the discharge in full of the Lessee's obligation to pay the
         Termination Value or the Stipulated Loss Value and all other amounts
         due, if any, under Section 10 or 11.2 of the Lease, as the case may
         be, with respect to the Equipment; provided that the exclusion set
         forth in this clause (ii) shall not apply to Taxes to the extent such
         Taxes relate to events occurring or matters arising prior to or
         simultaneously with the applicable time;

                 (iii)     As to any Tax Indemnitee, Taxes to the extent caused
         by any misrepresentation or breach of warranty or covenant under the
         Operative Agreements or by the gross negligence or willful misconduct
         of such Tax Indemnitee;

                 (iv)      As to any Tax Indemnitee, Taxes which become payable
         as a result of a sale, assignment, transfer or other disposition
         (whether voluntary or involuntary) by such Tax Indemnitee of all or
         any portion of its interest in the Equipment or any part thereof, the
         Trust Estate or any of the Operative Agreements or rights created
         thereunder other than as a result of the substitution, modification or
         improvement of the Equipment or any part thereof or a disposition
         which occurs as the result of the exercise of remedies for a Lease
         Event of Default, any disposition which occurs during the continuance
         of a





                                      41
<PAGE>   46
         Lease Event of Default or a purchase of any Unit pursuant to the
         Lease; provided, that, notwithstanding the foregoing but subject to
         the Tax Indemnity Agreement, Lessee shall not be obligated to
         indemnify any Tax Indemnitee with respect to net income taxes imposed
         within the United States as the result of a sale, assignment, transfer
         or other disposition by such Tax Indemnitee or any Taxes imposed as a
         result of the status of the Tax Indemnitee as other than a resident of
         the United States for tax purposes;

                 (v)       Taxes which result from the Owner Trustee's engaging
         on behalf of the Trust Estate in transactions unrelated to those
         permitted or contemplated by the Operative Agreements;

                 (vi)      As to any Tax Indemnitee, Taxes to the extent they
         exceed the Taxes that would have been imposed had the initial Tax
         Indemnitee not transferred, sold or otherwise disposed of any interest
         held by such Tax Indemnitee pursuant to any of the Operative
         Agreements such excess to be determined based on a certificate of the
         original Tax Indemnitee provided to the Lessee immediately prior to a
         transfer, sale or other such disposition of such interest, such
         certificate to set forth the state and local jurisdictions in which
         the original Tax Indemnitee would not be entitled to indemnification
         in accordance with Section  7.1(c)(i)(B) and (C) hereof; and

                 (vii)     Taxes imposed on the Owner Trustee based on the
         Owner Trustee's fee for services under the Trust Agreement.

         (d)     All Tax Obligations in this Section, etc.  Notwithstanding any
other provision anywhere contained in the Operative Agreements, it is
understood that except as provided in Section 6.2, with respect to the Owner
Participant, and Section 6.3, with respect to the Owner Trustee, and except as
provided in Section 5.03 of the Indenture, the Owner Participant and the Owner
Trustee shall have no obligations with respect to Taxes or other charges to the
Indenture Trustee or the Loan Participant imposed under Section 7.16 of the
Pass Through Trust Agreement or Section 5.09 of the Indenture, or otherwise.

         (e)     Payments to Lessee.

                 (i)       If any Tax Indemnitee shall realize a Tax benefit
         (net of any Tax detriment not otherwise paid or indemnified against by
         the Lessee hereunder) as a result of any Taxes paid or indemnified
         against by the Lessee under this Section 7.1 (whether by way of
         deduction, credit, allocation or apportionment or otherwise), such Tax
         Indemnitee shall pay to the Lessee an amount equal to the amount of
         such Tax benefit, increased by the Tax Indemnitee's additional saved
         Taxes attributable to the payment being made to the Lessee hereunder;
         provided, however, that in no event shall the aggregate amount paid by
         any Tax Indemnitee to the Lessee with respect to any realized Tax
         benefit exceed the aggregate amount previously advanced by the Lessee
         with respect to such Taxes (in each case, computed on a pre-tax basis)
         but provided, further, that such





                                      42
<PAGE>   47
         excess shall be carried forward to reduce or offset any future
         obligations of the Lessee to such Tax Indemnitee under this Section
         7.1.

                 (ii)      Upon receipt by a Tax Indemnitee of a refund or
         credit of all or part of any Taxes paid or indemnified against by the
         Lessee, such Tax Indemnitee shall pay to the Lessee an amount equal to
         the amount of such refund plus any interest received by or credited to
         such Tax Indemnitee with respect to such refund increased or
         decreased, as the case may be, by the Tax Indemnitee's net additional
         or saved taxes attributable to the receipt of such amounts from the
         taxing authority and the payment being made to the Lessee hereunder.

                 (iii)     The Tax Indemnitee shall in good faith file its Tax
         returns and deal with taxing authorities to seek and claim any such
         tax benefits or refunds.

                 (iv)      Any disallowance or other loss of a tax refund,
         credit, savings or other benefit by a Tax Indemnitee, which refund,
         credit, savings or other benefit was taken into account under this
         Section 7.1, shall be treated as a tax indemnifiable by the Lessee
         under this Section 7.1.

         (f)     Procedures.  Any amount payable to a Tax Indemnitee pursuant
to paragraph (b) shall be paid within 30 days after receipt of a written demand
therefor from such Tax Indemnitee accompanied by a written statement describing
in reasonable detail the basis for such indemnity and the computation of the
amount so payable, provided that such amount need not be paid prior to (i) the
date which is the Business Day before the date on which such Taxes are due (but
in no event before the taxable year of the Tax Indemnitee in which such Taxes
are due), or (ii) in the case of amounts which are being contested pursuant to
paragraph (g) hereof, subject to the requirement of an advance in clause (vi)
of the second paragraph of paragraph (g) hereof, the time such Taxes are due
and payable pursuant to the resolution of such contest (including all appeals).
Any amount payable to the Lessee pursuant to paragraph (e) shall be paid within
30 days after the Tax Indemnitee realizes a net tax benefit or receives a
refund giving rise to a payment under paragraph (e), and shall be accompanied
by a written statement by the Tax Indemnitee setting forth in reasonable detail
the basis for computing the amount of such payment.  Within 15 days following
the Lessee's receipt of any computation from the Tax Indemnitee, the Lessee may
request that the accounting firm that regularly prepares the certified
financial statements of the Tax Indemnitee determine whether such computations
of the Tax Indemnitee are correct.  Such accounting firm shall be requested to
make the determination contemplated by this paragraph (f) within 30 days of its
selection.  In the event such accounting firm shall determine that such
computations are incorrect, then such firm shall determine what it believes to
be the correct computations.  The Tax Indemnitee shall cooperate with such
accounting firm and supply it with all information necessary to permit it to
accomplish such determination on a confidential basis.  The computations of
such accounting firm shall be final, binding and conclusive upon the parties
and the Lessee shall have no right to inspect the books, records or tax returns
of the Tax Indemnitee to verify such computation or for any other





                                      43
<PAGE>   48
purpose.  All fees and expenses of the accounting firm payable under this
Section 7.1(f) shall be borne by the Lessee except that if such accounting firm
determines that the Tax Indemnitee's computations were incorrect and
understated the payments owing to the Lessee or overstated the payments owing
to such Tax Indemnitee by 10% or more of the correct amount as determined by
such accounting firm, then the Tax Indemnitee shall bear the fees and expenses
of such accounting firm.

         (g)     Contest.  If a written claim is made against a Tax Indemnitee
for Taxes with respect to which the Lessee may be liable for indemnity
hereunder, the Tax Indemnitee shall give the Lessee prompt notice in writing of
such claim (and in any event within 30 days after its receipt) and shall
promptly furnish the Lessee with copies of the claim and all other writings
received from the taxing authority relating to the claim; provided however,
that the failure of such Tax Indemnitee timely to provide such written notice
shall not affect the Lessee's obligations under this Section 7.1(g) except to
the extent that the same materially adversely affects the ability of the Lessee
to contest such Taxes.  The Tax Indemnitee shall not pay such claim prior to 30
days after providing the Lessee with such written notice, unless required to do
so by law or unless deferral of payment might, in the reasonable good faith
judgment of the Tax Indemnitee, cause material adverse consequences to the Tax
Indemnitee or result in the creation of any Lien other than a Permitted Lien.
The Tax Indemnitee shall in good faith, with due diligence and at the Lessee's
expense, if requested in writing by the Lessee, contest (including pursuing all
appeals permitted hereby) in the name of the Tax Indemnitee (or, if requested
by the Lessee and permissible as a matter of law, in the name of the Lessee),
or shall permit the Lessee to contest in either the name of the Lessee or with
the Tax Indemnitee's consent, in the name of the Tax Indemnitee the validity,
applicability or amount of such Taxes by,

                 (i)       resisting payment thereof if practical;

                 (ii)      not paying the same except under protest if protest
         is necessary and proper;

                 (iii)     if the payment be made, using reasonable efforts to
         obtain a refund thereof in appropriate administrative and judicial
         proceedings; or

                 (iv)      taking such other reasonable action as is reasonably
         requested by the Lessee from time to time.

provided, however, that to the extent the contest is carried on in the name of
the Lessee or an Affiliate, or is brought in the name of a Tax Indemnitee and
involves only Taxes for which the Lessee is or will be liable hereunder, such
contest shall be undertaken by the Lessee at the Lessee's expense (unless at
any time the Tax Indemnitee determines in its reasonable good faith judgment
that based upon the Lessee's conduct of such contest the Lessee's control of
such contest would cause material adverse consequences or a material risk
thereof to the Tax Indemnitee) and at no-after-tax cost to any Tax Indemnitee
(a "Lessee Controlled Contest"), but





                                      44
<PAGE>   49
if such contest would involve any other Taxes or any Taxes in the nature of a
tax on net income then such Tax Indemnitee may in its sole discretion control
such contest (including selecting the forum for such contest) (an "Indemnified
Person Controlled Contest").

         In no event shall any Tax Indemnitee be required or the Lessee be
permitted to contest any Taxes for which the Lessee is obligated to indemnify
pursuant to this Section unless:  (i) such Lessee shall have acknowledged its
liability to such Tax Indemnitee for an indemnity payment pursuant to this
Section as a result of such claim if and to the extent such Indemnitee or the
Lessee, as the case may be, shall not prevail in the contest of such claim;
(ii) such Tax Indemnitee shall have received the opinion of tax counsel (which
may, in the case of Taxes imposed by a taxing authority located in the United
States, include in-house counsel of the Lessee) selected by the Lessee and
satisfactory to the Tax Indemnitee furnished at Lessee's sole expense, to the
effect that a reasonable basis consistent with ABA Opinion 85-352 exists for
contesting such claim or, in the event of an appeal, that it is more likely
than not that an appellate court will reverse or substantially modify the
adverse determination (and provided that no appeal shall be required to the
United States Supreme Court); (iii) the Lessee shall have agreed to pay such
Tax Indemnitee on demand (and at no after-tax cost to any Tax Indemnitee) all
reasonable costs and expenses that such Tax Indemnitee actually incurs in
connection with contesting such claim (including, without limitation, all
costs, expenses, reasonable legal and accounting fees, disbursements,
penalties, interest and additions to the Taxes); (iv) no Lease Event of Default
shall have occurred and shall be continuing; (v) such Tax Indemnitee shall have
determined that the action to be taken will not result in any risk of
imposition of criminal penalties or substantial danger of sale, forfeiture or
loss of, or the creation of any Lien (except if such Lessee shall have
adequately bonded such Lien or otherwise made provision to protect the
interests of such Tax Indemnitee in a manner reasonably satisfactory to such
Tax Indemnitee) on the Equipment or any portion thereof or any interest
therein; and (vi) if such contest shall be conducted in a manner requiring the
payment of the claim, the Lessee shall have paid the amount required (at no
after-tax cost to such Tax Indemnitee).  The Lessee shall cooperate with the
Tax Indemnitee with respect to any contest controlled and conducted by the Tax
Indemnitee and the Tax Indemnitee shall consult with the Lessee regarding the
conduct of such contest.  The Tax Indemnitee shall cooperate with the Lessee
with respect to any contest controlled and conducted by the Lessee and the
Lessee shall consult with the Tax Indemnitee regarding the conduct of such
contest.

         In no event will a Tax Indemnitee be required to contest in an
Indemnified Person Controlled Contest any Taxes if such Tax Indemnitee shall
waive its right to an indemnity under this Section 7.1 except that a Tax
Indemnitee shall not be permitted to waive or not contest any Lessee Controlled
Contest without Lessee's consent.  Unless a Tax Indemnitee obtains the consent
of the Lessee, which consent shall not be unreasonably withheld (provided,
however, the Lessee shall not be considered to have unreasonably withheld such
consent because of (i) any failure by the Lessee to consider any issue or
dispute of the Tax Indemnitee not directly related to the claim giving rise to
the contest rights in issue or (ii) the Lessee's consideration of the effects
of such settlement on issues of the Lessee which are not the subject of such
claim), the





                                      45
<PAGE>   50
failure to contest or the settlement of any contest required under Section 7.1
by a Tax Indemnitee shall constitute a waiver by such Tax Indemnitee of its
rights to indemnification hereunder as to such contest and as to any future
claims for which the Lessee's right to contest shall have been precluded by
such Tax Indemnitees' failure to contest.

         (h)     For purposes of this Section 7.1,  in determining the order in
which any Tax Indemnitee utilizes withholding or other foreign taxes as a
credit against such Tax Indemnitee's United States income taxes, such Tax
Indemnitee shall be deemed to utilize (i) first, all foreign taxes other than
those described in clause (ii) below; provided, however, that such other
foreign taxes which are carried back to the taxable year for which a
determination is being made (other than any carrybacks which are known to be
available at the time such determination is made) pursuant to this clause (i)
shall be deemed utilized after the foreign taxes described in clause (ii)
below, and (ii) then, on a pro rata basis, all foreign taxes (including fees,
taxes and other charges hereunder) with respect to which such Tax Indemnitee is
entitled to obtain indemnification pursuant to an indemnification provision
contained in any lease, loan agreement, financing document or participation
agreement (including the Lease).

         (i)     In the event any reports with respect to Taxes are required to
be made, the Lessee will either prepare and file such reports (and in the case
of reports which are required to be filed on the basis of individual items of
Equipment, such reports shall be prepared and filed in such manner as to show
as required the interests of each Tax Indemnitee in such item of Equipment) or,
if it shall not be permitted to file the same, it will notify each Tax
Indemnitee in writing of such reporting requirements, prepare such reports in
such manner as shall be reasonably satisfactory to each Tax Indemnitee and
deliver the same to each Tax Indemnitee within a reasonable period prior to the
date the same is to be filed.  The Lessee shall provide such information as the
Owner Participant or the Lessor may reasonably require from the Lessee to
enable the Owner Participant and the Lessor to pursue or fulfill their
respective tax filing, tax audit, and tax litigation rights and obligations.

         (j)     The provisions of this Section 7.1 shall continue in full
force and effect, notwithstanding the expiration or termination of any
Operative Agreement, until all obligations hereunder have been met and all
liabilities hereunder paid in full.

         (k)     Any amount payable to the Lessee pursuant to the terms of this
Section 7.1 shall not be paid or retained by the Lessee if at the time of such
payment or retention a Lease Default relating to Sections 14(a), 14(b), 14(g)
or 14(h) or a Lease Event of Default shall have occurred and be continuing.
Such otherwise paid or retained amounts may be applied by the related Tax
Indemnitee to satisfy the obligations of the Lessee under the Operative
Agreements.  At such time as there shall not be continuing any such Lease
Default or Lease Event of Default, such amount shall be paid to the Lessee
without interest to the extent not previously applied in accordance with the
preceding sentence.





                                      46
<PAGE>   51
         (l)     For purposes of this Section 7.1, the term "Income Tax" means
any Tax based on or measured by or with respect to gross, adjusted gross or net
income (including without limitation, capital gains taxes, minimum taxes and
tax preferences) or gross or net receipts and Taxes which are capital, net
worth, conduct of business, franchise or excess profits taxes and interest,
additions to tax, penalties, or other charges in respect thereof (provided,
however, that sales, use, rental, excise, or property taxes shall not
constitute an Income Tax; and provided, further, that a value-added tax shall
constitute an Income Tax if it is in the nature of a tax on net income but
shall not constitute an Income Tax if it is in the nature of a sales, use,
rental, excise, property or other tax; and provided, further, that a
withholding tax shall not constitute an Income Tax notwithstanding its being a
tax that is based on or measured by or with respect to gross income or gross
receipts).

         Section 7.2.      General Indemnification and Waiver of Certain
                           Claims.

         (a)     Claims Defined.  For the purposes of this Section 7.2,
"Claims" shall mean any and all costs, expenses, liabilities, obligations,
losses, damages, penalties, actions or suits or claims of whatsoever kind or
nature (whether or not on the basis of negligence, strict or absolute liability
or liability in tort) which may be imposed on, incurred by, suffered by, or
asserted against an Indemnified Person, as defined herein, or any Unit and,
except as otherwise expressly provided in this Section 7.2, shall include, but
not be limited to, all reasonable out-of-pocket costs, disbursements and
expenses (including legal fees and expenses) paid or incurred by an Indemnified
Person in connection therewith or related thereto.

         (b)     Indemnified Person Defined.  For the purposes of this Section
7.2, "Indemnified Person" means the Owner Participant, the Owner Trustee (both
in its individual capacity and as Owner Trustee), the Indenture Trustee and the
Pass Through Trustee, each of their Affiliates and each of their respective
directors, officers, employees, successors and permitted assigns, agents and
servants, the Trust Estate and the Indenture Estate (the respective directors,
officers, employees, successors and permitted assigns, agents and servants of
the Owner Participant, the Owner Trustee, the Indenture Trustee, the Pass
Through Trustee and each of their Affiliates, as applicable, together with the
Owner Participant, the Owner Trustee, the Indenture Trustee, the Pass Through
Trustee and each of their Affiliates, as the case may be, being referred to
herein collectively as the "Related Indemnitee Group" of the Owner Participant,
the Indenture Trustee, the Owner Trustee and the Pass Through Trustee,
respectively).

         (c)     Claims Indemnified.  Whether or not any Unit is accepted under
the Lease, or a closing occurs with respect thereto, and subject to the
exclusions stated in subsection (d) below, Lessee agrees to indemnify, protect,
defend and hold harmless each Indemnified Person on an After-Tax Basis against
Claims directly or indirectly resulting from or arising out of or alleged to
result from or arise out of (whether or not such Indemnified Person shall be
indemnified as to such Claim by any other Person):





                                      47
<PAGE>   52
                 (i)       this Agreement or any other Operative Agreement or
         any of the transactions contemplated hereby and thereby or any Unit or
         the ownership, lease, operation, possession, modification,
         improvement, abandonment, use, non-use, maintenance, sublease,
         substitution, control, repair, storage, alteration, transfer or other
         application or disposition, return, overhaul, testing, servicing,
         replacement or registration of any Unit (including, without
         limitation, injury, death or property damage of passengers, shippers
         or others, and environmental control, noise and pollution regulations,
         or the presence, discharge, spillage, release or escape of Hazardous
         Substances or damage to the environment (including, without
         limitation, clean-up costs, response costs, costs of corrective
         actions and natural resource damages)) whether or not in compliance
         with the terms of the Lease, or by any of the commodities, items or
         materials from time to time contained in any Unit, whether or not in
         compliance with the terms of the Lease, or by the inadequacy of any
         Unit or deficiency or defect in any Unit or by any other circumstances
         in connection with any Unit, or by the performance of any Unit or any
         risks relating thereto, or by any interruption of service, loss of
         business or anticipated profits or consequential damages;

                 (ii)      the construction, manufacture, financing,
         refinancing, design, purchase, acceptance, rejection, delivery,
         non-delivery or condition of any Unit (including, without limitation,
         latent and other defects, whether or not discoverable, and any claim
         for patent, trademark or copyright infringement);

                 (iii)     any act or omission (whether negligent or otherwise)
         or any breach of or failure to perform or observe, or any other
         non-compliance with, any covenant, condition or agreement to be
         performed by, or other obligation of, Lessee under any of the
         Operative Agreements, or the falsity of any representation or warranty
         of the Lessee in any of the Operative Agreements or in any document or
         certificate delivered in connection therewith other than
         representations and warranties in the Tax Indemnity Agreement;

                 (iv)      the offer, sale or delivery of any Equipment Notes
         or Pass Through Certificates or any interest in the Trust Estate;

                 (v)       any violation of law, rule, regulation or order by
         the Lessee or any sublessee or their respective directors, officers,
         employees, agents or servants; and

                 (vi)      the acquisition or holding of any Equipment Notes or
         Pass Through Certificates being deemed to result in a "prohibited
         transaction" under ERISA or the Code.

         (d)     Lessee's Claims Excluded.  The following are excluded from the
         agreement to indemnify under this Section 7.2:





                                      48

<PAGE>   53
                 (i)       Claims with respect to any Unit to the extent
         attributable to acts or events occurring after (A) in the case of the
         exercise by the Lessee of a purchase option with respect to such Unit
         under Section 22.1 or 22.3 of the Lease, the exercise by the Lessee of
         an early termination option with respect to such Unit under Section 10
         of the Lease, the occurrence or deemed occurrence of an Event of Loss
         with respect to such Unit under Section 11 of the Lease, or the
         election to replace such Unit under Section 8.1(b), 8.3 or 9.1 of the
         Lease, the last to occur of (x) the payment of all amounts due from
         the Lessee in connection with any such event, (y) the release of the
         Lien of the Indenture on such Unit, and (z) legal transfer of title to
         such Unit to any Person other than Lessor, except in the case of a
         retention of any Unit by Lessor pursuant to the terms and provisions
         of Section 10.3 of the Lease, and in the case of any such retention,
         upon the effective date of the termination of the Lease Term with
         respect to such Unit retained by Lessor pursuant to Section 10.3 or
         (B) in all other cases (except in any case where remedies are being
         exercised under Section 15 of the Lease), the last to occur of (x)
         with respect to such Unit, the earlier to occur of the termination of
         the Lease or the expiration of the Lease Term in accordance with the
         terms thereof, (y) with respect to each Unit, the return of such Unit
         to the Lessor in accordance with the terms of the Lease (it being
         understood that, so long as any Unit is in storage as provided in
         Section 6.1(c) of the Lease, the date of return thereof for the
         purpose of this clause (B) shall be the last day of the Storage
         Period), and (z) the release of the Lien of the Indenture on such
         Unit;

                 (ii)      Claims which are Taxes, whether or not the Lessee is
         required to indemnify therefor under Section 7.1 hereof or the Tax
         Indemnity Agreement;

                 (iii)     with respect to any particular Indemnified Person,
         Claims to the extent resulting from (x) the gross negligence or
         willful misconduct of such Indemnified Person, or (y) any breach of
         any covenant to be performed by such Indemnified Person under any of
         the Operative Agreements, or the falsity of any representation or
         warranty of such Indemnified Person in any of the Operative Agreements
         or in a document or certificate delivered in connection therewith;

                 (iv)      any Claim to the extent attributable to any transfer
         by the Lessor of the Equipment or any portion thereof or any transfer
         by the Owner Participant of all or any portion of its interest in the
         Trust Estate other than (A) any transfer after a Lease Default or
         Lease Event of Default, (B) the transfer of the Equipment or any Owner
         Participant's interest in the Equipment to the Lessee, (C) the
         transfer of the Equipment to a third party pursuant to Lessee's
         election to terminate the Lease or (D) any transfer of the Equipment
         pursuant to Section 6.9;

                 (v)       with respect to any particular Indemnified Person,
         any Claim resulting from the imposition of any Lessor's Lien
         attributable to such Indemnified Person; or





                                      49
<PAGE>   54
                 (vi)      with respect to any particular Indemnified Person,
         any Claim, to the extent the risk thereof has been expressly assumed
         by such Indemnified Person in connection with the exercise by such
         Indemnified Person of the right of inspection granted under Section
         6.2, inspection or restenciling under Section 6.3 or inspection under
         Section 13.2 of the Lease.

         (e)     Insured Claims.  In the case of any Claim indemnified by the
Lessee hereunder which is covered by a policy of insurance maintained by the
Lessee pursuant to Section 12 of the Lease or otherwise, each Indemnified
Person agrees to provide reasonable cooperation to the insurers in the exercise
of their rights to investigate, defend or compromise such Claim as may be
required to retain the benefits of such insurance with respect to such Claim.

         (f)     Claims Procedure.  An Indemnified Person shall, after
obtaining knowledge thereof, promptly notify the Lessee of any Claim as to
which indemnification is sought; provided, however, that the failure to give
such notice shall not release the Lessee from any of its obligations under this
Section 7.2, except to the extent that failure to give notice of any action,
suit or proceeding against such Indemnified Person shall have a material
adverse affect on Lessee's ability to defend such Claim or recover proceeds
under any insurance policies maintained by Lessee hereunder.  The Lessee shall,
after obtaining knowledge thereof, promptly notify each Indemnified Person of
any indemnified Claim affecting such Person.  Subject to the provisions of the
following paragraph, the Lessee shall at its sole cost and expense be entitled
to control, and shall assume full responsibility for, the defense of such claim
or liability; provided that the Lessee shall keep the Indemnified Person which
is the subject of such proceeding fully apprised of the status of such
proceeding and shall provide such Indemnified Person with all information with
respect to such proceeding as such Indemnified Person shall reasonably request.

         Notwithstanding any of the foregoing to the contrary, the Lessee shall
not be entitled to control and assume responsibility for the defense of such
claim or liability if (1) a Lease Event of Default shall have occurred and be
continuing, (2) such proceeding will involve any material danger of the sale,
forfeiture or loss of, or the creation of any Lien (other than any Lien
permitted under the Operative Agreements or a Lien which is adequately bonded
to the satisfaction of such Indemnified Person) on, any Unit, (3) the amounts
involved, in the good faith opinion of such Indemnified Person, are likely to
have a materially adverse effect on the business of such Indemnified Person
other than the ownership, leasing and financing of the Equipment, (4) in the
good faith opinion of such Indemnified Person, there exists an actual or
potential conflict of interest such that it is advisable for such Indemnified
Person to retain control of such proceeding or (5) such claim or liability
involves the possibility of criminal sanctions or liability to such Indemnified
Person.  In the circumstances described in clauses (1) - (5), the Indemnified
Person shall be entitled to control and assume responsibility for the defense
of such claim or liability at the expense of the Lessee.  In addition, any
Indemnified Person may participate in any proceeding controlled by the Lessee
pursuant to this Section 7.2, at its own expense, in respect of any such
proceeding as to which the Lessee shall have acknowledged in





                                      50
<PAGE>   55
writing its obligation to indemnify the Indemnified Person pursuant to this
Section 7.2, and at the expense of Lessee in respect of any such proceeding as
to which the Lessee shall not have so acknowledged its obligation to the
Indemnified Person pursuant to this Section 7.2.  Lessee may in any event
participate in all such proceedings at its own cost.  Nothing contained in this
Section 7.2(f) shall be deemed to require an Indemnified Person to contest any
Claim or to assume responsibility for or control of any judicial proceeding
with respect thereto.

         (g)     Subrogation.  If a Claim indemnified by the Lessee under this
Section 7.2 is paid in full by the Lessee and/or an insurer under a policy of
insurance maintained by the Lessee, the Lessee and/or such insurer, as the case
may be, shall be subrogated to the extent of such payment to the rights and
remedies of the Indemnified Person (other than under insurance policies
maintained by such Indemnified Person) on whose behalf such Claim was paid with
respect to the transaction or event giving rise to such Claim.  So long as no
Lease Event of Default shall have occurred and be continuing, should an
Indemnified Person receive any refund, in whole or in part, with respect to any
Claim paid by the Lessee hereunder, it shall promptly pay over the amount
refunded (but not in excess of the amount the Lessee or any of its insurers has
paid) to the Lessee.

         (h)     Waiver of Certain Claims.  The Lessee hereby waives and
releases any Claim now or hereafter existing against any Indemnified Person
arising out of death or personal injury to personnel of the Lessee, pollution
incidents, loss or damage to property of the Lessee, or the loss of profits or
use of any property of the Lessee, which may result from or arise out of the
condition, use or operation of the Equipment during the Lease Term, including
without limitation any latent or patent defect whether or not discoverable.

         (i)     No Guaranty.  The general indemnification provisions of this
Section 7.2 do not constitute a guaranty by the Lessee that the principal of,
interest on or any amounts payable with respect to the Equipment Notes will be
paid.

SECTION 8.  LESSEE'S RIGHT OF QUIET ENJOYMENT.

         Each party to this Agreement acknowledges notice of, and consents in
all respects to, the terms of the Lease, and expressly, severally and as to its
own actions only, agrees that, so long as no Lease Event of Default has
occurred and is continuing, it shall not take or cause to be taken any action
contrary to Lessee's rights under the Lease, including, without limitation, the
right to possession, use and quiet enjoyment by Lessee or any permitted
sublessee of the Equipment.

SECTION 9.  SUCCESSOR INDENTURE TRUSTEE.

         In the event that the Indenture Trustee gives notice of its
resignation pursuant to Section 8.02 of the Trust Indenture, the Owner Trustee
shall promptly appoint a successor Indenture Trustee reasonably acceptable to
the Lessee and the Pass Through Trustee.





                                      51
<PAGE>   56
SECTION 10.  MISCELLANEOUS.

         Section 10.1.     Consents.  Each Participant covenants and agrees
(subject, in the case of the Loan Participant, to all of the terms and
provisions of the Trust Indenture) that it shall not unreasonably withhold its
consent to any consent requested of the Owner Trustee or the Indenture Trustee,
as the case may be, under the terms of the Operative Agreements that by its
terms is not to be unreasonably withheld by the Owner Trustee or the Indenture
Trustee.

         Section 10.2.     Refinancing.  So long as no Lease Default or Lease
Event of Default shall be in existence, the Lessee shall have the right to
request the Owner Participant and the Owner Trustee to effect an optional
prepayment of all, and not less than all, of the Equipment Notes pursuant to
Section 2.10(d) of the Indenture as part of a refunding or refinancing
operation.  As soon as practicable after receipt of such request, the Owner
Participant and the Lessee will enter into an agreement, in form and substance
reasonably satisfactory to the parties thereto, as to the terms of such
refunding or refinancing as follows:

         (a)     the Lessee, the Owner Participant, the Indenture Trustee, the
Owner Trustee, and any other appropriate parties will enter into a financing or
loan agreement (which may involve an underwriting agreement in connection with
a public offering), in form and substance reasonably satisfactory to the
parties thereto, providing for (i) the issuance and sale by the Owner Trustee
or such other party as may be appropriate on the date specified in such
agreement (for the purposes of this Section 10.2, the "Refunding Date") of debt
securities in an aggregate principal amount (in the lawful currency of the
United States) equal to the principal amount of the Equipment Notes outstanding
on the Refunding Date, having the same maturity date as said Equipment Notes
and having a weighted average life which is not less than or greater than the
Remaining Weighted Average Life of said Equipment Notes by more than three
months, (ii) the application of the proceeds of the sale of such debt
securities to the prepayment of all such Equipment Notes on the Refunding Date,
and (iii) payment by Lessee to the Person or Persons entitled thereto of all
other amounts, in respect of accrued interest, any Make Whole Amount or other
premium, if any, payable on such Refunding Date;

         (b)     the Lessee and the Owner Trustee will amend the Lease in a
manner such that (i) if the Refunding Date is not a Rent Payment Date and the
accrued and unpaid interest on the Equipment Notes is not otherwise paid
pursuant to Section 10.2(a), the Lessee shall on the Refunding Date prepay that
portion of the next succeeding installment of Basic Rent as shall equal the
aggregate interest accrued on the Equipment Notes outstanding to the Refunding
Date, (ii) Basic Rent payable in respect of the period from and after the
Refunding Date shall be recalculated to preserve the Net Economic Return which
the Owner Participant would have realized had such refunding not occurred,
provided that the net present value of Basic Rent shall be minimized to the
extent consistent therewith, and (iii) amounts payable in respect of Stipulated
Loss Value, Early Purchase Price, Basic Term Purchase Price and Termination
Value from and after the Refunding Date shall be appropriately recalculated to
preserve the Net Economic Return which the Owner Participant would have
realized had such refunding not occurred





                                      52
<PAGE>   57
(it being agreed that any recalculations pursuant to subclauses (ii) and (iii)
of this clause (b) shall be performed in accordance with the requirements of
Section 2.6 hereof);

         (c)     the Owner Trustee will enter into an agreement to provide for
the securing thereunder of the debt securities issued by the Owner Trustee
pursuant to clause (a) of this Section 10.2 in like manner as the Equipment
Notes and/or will enter into such amendments and supplements to the Indenture
as may be necessary to effect such refunding or refinancing, which agreements,
amendments and/or supplements shall be reasonably satisfactory in form and
substance to the Owner Participant; provided that, no such agreement or
amendment shall provide for any increase in the security for the new debt
securities; and provided further that,  notwithstanding the foregoing (but
subject to the provisions of clauses (a) and (b) above), the Lessee reserves
the right to set the economic terms and other terms not customarily negotiated
between an owner participant and a lender of the refunding or refinancing
transaction to be so offered to the extent that they are passed through to the
Lessee in, or define rights or obligations of the Lessee under, the Operative
Agreements; provided, further, that no such amendment or supplement will
increase the obligations or impair the rights of the Owner Participant under
the Operative Agreements without the consent of the Owner Participant;

         (d)     in the case of a refunding or refinancing involving a public
offering of debt securities, neither the Owner Trustee nor the Owner
Participant shall be an "issuer" for securities law purposes or an "obligor"
within the meaning of the Trust Indenture Act of 1939, as amended, the offering
materials (including any registration statement) for the refunding or
refinancing transaction shall be reasonably satisfactory to the Owner
Participant and the Lessee shall provide satisfactory indemnity to the Owner
Trustee and Owner Participant with respect thereto;

         (e)     unless otherwise agreed by the Owner Participant, the Lessee
shall pay to the Owner Trustee as Supplemental Rent an amount equal to the
Make-Whole Amount or other premium, if any, payable in respect of Equipment
Notes outstanding on the Refunding Date, and all reasonable fees, costs,
expenses of such refunding or refinancing and of the parties hereto incurred in
connection with such refunding or refinancing (including all reasonable
out-of-pocket legal fees and expenses);

         (f)     the Lessee shall give the Indenture Trustee not less than 25
days prior written notice of the Refunding Date;

         (g)     the Owner Participant, the Owner Trustee, the Indenture
Trustee and the Pass Through Trustee shall have received (i) such opinions of
counsel as they may reasonably request concerning compliance with the
Securities Act of 1933, as amended, and any other applicable law relating to
the sale of securities and (ii) such other opinions of counsel and such
certificates and other documents, each in form and substance satisfactory to
them, as they may reasonably request in connection with compliance with the
terms and conditions of this Section 10.2; and





                                      53
<PAGE>   58
         (h)     all necessary authorizations, approvals and consents shall
have been obtained;

provided, however, that the Lessee will, to the extent then known, promptly
provide to the Owner Participant, the Owner Trustee, the Indenture Trustee and
the Pass Through Trustee substantially final terms and conditions of any such
refunding or refinancing within 30 days prior to the execution and delivery of
the documents contemplated hereunder in connection therewith; and provided,
further, that (v) no refunding or refinancing of the Equipment Notes will be
permitted unless within 20 days after receipt by the Owner Participant of a
request from the Lessee to effect a refunding or refinancing pursuant to this
Section 10.2 and of information regarding the terms of such refunding or
refinancing necessary to render the opinion referred to below, the Lessee has
provided the Owner Participant with (a) a tax opinion from Mayer, Brown & Platt
or other tax counsel reasonably acceptable to the Owner Participant to the
effect that the Owner Participant would have a reasonable basis within the
meaning of Section 6662(d)(2)(B)(ii) of the Code not to report any adverse
federal income tax consequences as a result of such refunding or refinancing
and (b) an agreement to indemnify the Owner Participant against any adverse tax
consequence suffered as a result of such refinancing or refunding;
alternatively, in the event such reasonable basis tax opinion cannot be
provided and the Lessee wishes to effect such refunding or refinancing, the
Lessee will, at such time as the Lessee receives written notice from the Owner
Participant that the Owner Participant has filed any income tax return wherein
such adverse income tax consequences are recognized, make an indemnity payment
to the Owner Participant in the incremental amount of such adverse tax
consequence (on an After-Tax Basis) attributable to such refunding or
refinancing; (w) the Lessee shall pay to or reimburse the Participants, the
Owner Trustee and the Indenture Trustee for all costs and expenses (including
reasonable attorneys' and accountants' fees) paid or incurred by them in
connection with such refunding or refinancing; (x) no refunding or refinancing
of the Equipment Notes will be permitted if it shall cause the Owner
Participant to account for the transaction contemplated hereby as other than a
"leveraged lease" under the Financial Accounting Standards Board ("FASB")
Statement No. 13, as amended (including any amendment effected by means of the
adoption by FASB of a new statement in lieu of FASB Statement No. 13); and (y)
in no event, in connection with or after giving effect to such refunding or
refinancing shall the Owner Participant be exposed to any unindemnified risk or
liability (including tax risk) to which it is not exposed prior to such
refunding or refinancing.

         Section 10.3.     Amendments and Waivers.  Except as otherwise
provided in the Indenture, no term, covenant, agreement or condition of this
Agreement may be terminated, amended or compliance therewith waived (either
generally or in a particular instance, retroactively or prospectively) except
by an instrument or instruments in writing executed by each party against which
enforcement of the termination, amendment or waiver is sought.

         Section 10.4.     Notices.  Unless otherwise expressly specified or
permitted by the terms hereof, all communications and notices provided for
herein shall be in writing or by facsimile, and any such notice shall become
effective (i) upon personal delivery thereof, including, without limitation, by
overnight mail or courier service, (ii) in the case of notice by United States
mail,





                                      54
<PAGE>   59
certified or registered, postage prepaid, return receipt requested, upon
receipt thereof, or (iii) in the case of notice by facsimile, upon confirmation
of receipt thereof, provided such transmission is promptly further confirmed by
any of the methods set forth in clauses (i) or (ii) above, in each case
addressed to each party hereto at its address set forth below or, in the case
of any such party hereto, at such other address as such party may from time to
time designate by written notice to the other parties hereto:

         If to the Lessee:

                 General American Transportation Corporation
                 500 West Monroe Street
                 Chicago, Illinois  60661
                 Attention:                Treasurer
                 (GATC Trust No. 96-1)
                 Facsimile:                (312) 621-6645
                 Confirmation No.:         (312) 621-6200

         If to the Owner Trustee:

                 First Security Bank, N.A.
                 79 South Main Street
                 Salt Lake City, Utah  84111
                 Attention:                Corporate Trust Services
                 Facsimile:                (801) 246-5053
                 Confirmation No.:         (801) 246-5630

         with a copy to:

                 the Owner Participant at the
                 address set forth below

         If to the Owner Participant:

                 Dreyfus Service Corporation
                 c/o Mellon Financial Services Corporation #4
                 One Mellon Bank Center, Suite 4444
                 Pittsburgh, Pennsylvania  15258-0001
                 Attention:                President
                 Facsimile:                (412) 234-5062
                 Confirmation No.:         (412) 234-5061





                                      55
<PAGE>   60
                 [AMSOUTH LEASING CORPORATION
                 1900 FIFTH AVENUE NORTH, 8TH FLOOR
                 BIRMINGHAM, ALABAMA 35203
                 ATTENTION:                PRESIDENT
                 FACSIMILE:                (205) 307-4124
                 CONFIRMATION NO.:         (205) 326-5780]

                 with a copy to:

                 Dreyfus Service Corporation
                 200 Park Avenue
                 New York, New York 10166
                 Attention:                William V. Healey
                 Facsimile:                (212) 922-6880
                 Confirmation No.:         (212) 922-6760

         If to the Indenture Trustee:

                 The First National Bank of Chicago
                 One First National Plaza, Suite 0126
                 Chicago, Illinois  60670-0126
                 Attention:                Corporate Trust Services Division
                                           (GATC Trust No. 96-1)
                 Facsimile:                (312) 407-1708
                 Confirmation No.:         (312) 407-1892

         If to the Pass Through Trustee:

                 The First National Bank of Chicago
                 One First National Plaza, Suite 0126
                 Chicago, Illinois  60670-0126
                 Attention:                Corporate Trust Services Division
                                           (GATC Trust No. 96-1)
                 Facsimile:                (312) 407-1708
                 Confirmation No.:         (312) 407-1892

         Section 10.5.     Survival.  All warranties, representations,
indemnities and covenants made by any party hereto, herein or in any
certificate or other instrument delivered by any such party or on the behalf of
any such party under this Agreement, shall be considered to have been relied
upon by each other party hereto and shall survive the consummation of the
transactions contemplated hereby on the Closing Date regardless of any
investigation made by any such party or on behalf of any such party.





                                      56
<PAGE>   61
         Section 10.6.     No Guarantee of Debt.  Nothing contained herein or
in the Lease, the Trust Indenture, the Trust Agreement, the Pass Through Trust
Agreement or the Tax Indemnity Agreement or in any certificate or other
statement delivered by the Lessee in connection with the transactions
contemplated hereby shall be deemed to be (i) a guarantee by the Lessee to the
Owner Trustee, the Owner Participant, the Indenture Trustee or the Loan
Participant that the Equipment will have any residual value or useful life, or
(ii) a guarantee by the Indenture Trustee or the Lessee of payment of the
principal of, premium, if any, or interest on the Equipment Notes.

         Section 10.7.     Successors and Assigns.  This Agreement shall be
binding upon and shall inure to the benefit of, and shall be enforceable by,
the parties hereto and their respective successors and assigns as permitted by
and in accordance with the terms hereof, including each successive holder of
the Beneficial Interest permitted under Section 6.1 hereof and each successive
holder of any Equipment Note issued and delivered pursuant to this Agreement or
the Indenture.  Except as expressly provided herein or in the other Operative
Agreements, no party hereto may assign their interests herein without the
consent of the parties hereto.

         Section 10.8.     Business Day.  Notwithstanding anything herein or in
any other Operative Agreement to the contrary, if the date on which any payment
is to be made pursuant to this Agreement or any other Operative Agreement is
not a Business Day, the payment otherwise payable on such date shall be payable
on the next succeeding Business Day with the same force and effect as if made
on such succeeding Business Day and (provided such payment is made on such
succeeding Business Day) no interest shall accrue on the amount of such payment
from and after such scheduled date to the time of such payment on such next
succeeding Business Day.

         Section 10.9.     Governing Law.  This agreement shall be in all
respects governed by and construed in accordance with the laws of the State of
New York including all matters of construction, validity and performance;
provided, however, that the parties hereto shall be entitled to all rights
conferred by any applicable federal statute, rule or regulation.

         Section 10.10.    Severability.  Whenever possible, each provision of
this Agreement shall be interpreted in such manner as to be effective and valid
under applicable law, but if any provision of this Agreement shall be
prohibited by or invalid under applicable law, such provision shall be
ineffective to the extent of such prohibition or invalidity, without
invalidating the remainder of such provision or the remaining provisions of
this Agreement.

         Section 10.11.    Counterparts.  This Agreement may be executed in any
number of counterparts, each executed counterpart constituting an original but
all together only one Agreement.

         Section 10.12.    Headings and Table of Contents.  The headings of the
Sections of this Agreement and the Table of Contents are inserted for purposes
of convenience only and shall not be construed to affect the meaning or
construction of any of the provisions hereof.





                                      57
<PAGE>   62
         Section 10.13.    Limitations of Liability.

         (a)     Liabilities of Participants.  Neither the Indenture Trustee,
the Owner Trustee nor any Participant shall have any obligation or duty to the
Lessee, to any other Participant or to others with respect to the transactions
contemplated hereby, except those obligations or duties of such Participant
expressly set forth in this Agreement and the other Operative Agreements, and
neither the Indenture Trustee nor any Participant shall be liable for
performance by any other party hereto of such other party, obligations or
duties hereunder.  Without limitation of the generality of the foregoing, under
no circumstances whatsoever shall the Indenture Trustee or any Participant be
liable to the Lessee for any action or inaction on the part of the Owner
Trustee in connection with the transactions contemplated herein, whether or not
such action or inaction is caused by willful misconduct or gross negligence of
the Owner Trustee unless such action or inaction is at the direction of the
Indenture Trustee or any Participant, as the case may be, and such direction is
expressly permitted hereby.

         (b)     No Recourse to the Owner Trustee.  It is expressly understood
and agreed by and between the Owner Trustee, the Lessee, the Owner Participant,
the Indenture Trustee, and the Loan Participant, and their respective
successors and permitted assigns that, subject to the proviso contained in this
Section 10.13(b), all representations, warranties and undertakings of the Owner
Trustee hereunder shall be binding upon the Owner Trustee, only in its capacity
as Owner Trustee under the Trust Agreement, and (except as expressly provided
herein) the Owner Trustee shall not be liable in its individual capacity for
any breach thereof, except for its gross negligence or willful misconduct, or
for breach of its covenants, representations and warranties contained herein,
except to the extent covenanted or made in its individual capacity; provided,
however, that nothing in this Section 10.13(b) shall be construed to limit in
scope or substance those representations and warranties of the Owner Trustee
made expressly in its individual capacity set forth herein.  The term "Owner
Trustee" as used in this Agreement shall include any successor trustee under
the Trust Agreement, or the Owner Participant if the trust created thereby is
revoked.

         Section 10.14.    Maintenance of Non-Recourse Debt.  The parties
hereto agree that if the Owner Trustee becomes a debtor subject to the
reorganization provisions of the Bankruptcy Code, 11 U.S.C. Section 101 et seq.
(the "Bankruptcy Code") or any successor provision, the parties hereto will
make an election under 1111(b)(1)(A)(i) of the Bankruptcy Code.  If (a) the
Owner Trustee becomes a debtor subject to the reorganization provisions of the
Bankruptcy Code or any successor provision, (b) pursuant to such reorganization
provisions the Owner Trustee is required, by reason of the Owner Trustee being
held to have recourse liability to the Pass Through Trustee or the Indenture
Trustee, directly or indirectly, to make payment on account of any amount
payable under the Equipment Notes or any of the other Operative Agreements and
(c) the Pass Through Trustee and/or the Indenture Trustee actually receives any
Excess Amount (as hereinafter defined) which reflects any payment by the Owner
Trustee on account of (b) above, then the Pass Through Trustee and/or the
Indenture Trustee, as the case may be, shall promptly refund to the Owner
Trustee such Excess Amount.  For purposes of this Section





                                      58
<PAGE>   63
10.14 "Excess Amount" means the amount by which such payment exceeds the amount
which would have been received by the Pass Through Trustee or the Indenture
Trustee if the Owner Trustee had not become subject to the recourse liability
referred to in (b) above.

         Section 10.15.    Ownership of and Rights in Units.  The sale of the
Units contemplated hereby is intended for all purposes to be a true sale of all
of the Lessee's right, title and interest in and to the Units to the Owner
Trustee, which shall be the legal owner thereof.  Upon consummation of the sale
and leaseback transactions contemplated hereby, the Lessee's interest in the
Units is intended to be that of a lessee only.  It is intended that for federal
and state income tax purposes the Owner Participant will be the owner of the
Units.  The rights of the Indenture Trustee in and to the Units pursuant to the
Indenture is intended to be that of a secured party holding a security
interest, subject to the Lease and the rights of the Lessee thereunder.  No
holder of an Equipment Note is intended to have any right, title or interest in
or to the Units except as a beneficiary of the security interest granted by the
Owner Trustee to the Indenture Trustee pursuant to the Indenture in trust for
the equal and ratable benefit of the holders from time to time of the Equipment
Notes.

                               *   *   *   *   *

         In Witness Whereof, the parties hereto have caused this Participation
Agreement to be executed and delivered, all as of the date first above written.


                                     Lessee:

                                     GENERAL  AMERICAN
                                             TRANSPORTATION  CORPORATION



                                     By:    
                                             -----------------------------------
                                     Name:   
                                             -----------------------------------
                                     Title:  
                                             -----------------------------------





                                      59
<PAGE>   64
                                           Owner Trustee:

                                     FIRST SECURITY BANK, N.A., not in its
                                     individual capacity except as expressly
                                     provided herein but solely as Owner
                                     Trustee



                                     By:     
                                             -----------------------------------
                                     Name:   
                                             -----------------------------------
                                     Title:  
                                             -----------------------------------


                                     Owner Participant:
                                     
                                     DREYFUS SERVICE CORPORATION
                                     [AMSOUTH LEASING CORPORATION]


                                     By:     
                                             -----------------------------------
                                     Name:   
                                             -----------------------------------
                                     Title:  
                                             -----------------------------------


                                     Indenture Trustee:

                                     THE FIRST NATIONAL BANK OF CHICAGO, not in
                                     its individual capacity except as expressly
                                     provided herein but solely as Indenture
                                     Trustee


                                     By:     
                                             -----------------------------------
                                     Name:   
                                             -----------------------------------
                                     Title:  
                                             -----------------------------------





                                      60
<PAGE>   65
                                     Pass Through Trustee:

                                     THE FIRST NATIONAL BANK OF CHICAGO, not in
                                     individual capacity except as expressly 
                                     provided herein but solely as Pass Through
                                     Trustee


                                     By:     
                                             ----------------------------------
                                     Name:   
                                             ----------------------------------
                                     Title:  
                                             ----------------------------------





                                      61
<PAGE>   66
                                                                     EXHIBIT A-1

         CERTIFICATE OF INSURANCE BROKER CONFIRMING INSURANCE COVERAGE
                              (PRIMARY LIABILITY)

The First National Bank of Chicago, individually and as Pass Through Trustee

The First National Bank of Chicago, individually and as Indenture Trustee

First Security Bank, N.A., individually and as Owner Trustee

Dreyfus Service Corporation [AMSOUTH LEASING CORPORATION], as Owner Participant


                            Re:  GATC Trust No. 96-1

Gentlemen:

        Reference is hereby made to the Lease and the Equipment thereunder.
Attached hereto as Exhibit A is a certificate with respect to certain insurance
maintained by the Lessee on the Equipment which is or will become effective as
of any item thereof upon the acceptance by the Lessee pursuant to the Lease.
Such insurance (i) complies with the requirements contained in Exhibit B hereto
except as noted below and (ii) is in full force and effect as of the date
hereof and all premiums due and payable with respect thereto have been paid in
full.

        Capitalized terms not otherwise defined herein or in the exhibits
attached hereto have the meaning assigned thereto in the Lease.





                                     A-1
<PAGE>   67
                                   EXHIBIT A
                       to Certificate of Insurance Broker



                   GATX Corporation Primary Liability Program
                    ________ __, 199_ to _________  __, 199_


Westchester Fire Insurance Company          $3,500,000 per occurrence and
Policy #MLA 3530920                         $9,000,000 in the aggregate as
                                            applicable; subject to a $3,000,000
                                            per occurrence retention and
                                            $8,000,000 in the aggregate 
                                            retention (indemnity only)





                                      A-2
<PAGE>   68
                                                                     EXHIBIT A-2

         CERTIFICATE OF INSURANCE BROKER CONFIRMING INSURANCE COVERAGE
                               (EXCESS LIABILITY)

The First National Bank of Chicago, individually and as Pass Through Trustee

The First National Bank of Chicago, individually and as Indenture Trustee

First Security Bank, N.A., individually and as Owner Trustee

Dreyfus Service Corporation [AMSOUTH LEASING CORPORATION], as Owner Participant

        Re:  GATC Trust No. 96-1

Gentlemen:

        We hereby certify that the Lessee is insured under various policies,
effective (_______________), that provide excess public liability coverage for
personal injury and property damage, subject to the policy terms, conditions
and exclusions.  We further certify that said policies:

                a.       afford limits of liability as indicated on the
        attached Exhibit A, excess of various underlying insurances or retained
        amounts and subject to aggregates where applicable;

                b.       are in full force and effect and all premiums due with
        respect to said policies have been paid in full; and

                c.       comply with all of the requirements listed on the
attached Exhibit B.

                We hereby agree on each of the times specified in Section 12.1
of the Lease to issue a certificate (1) describing in reasonable detail the
insurance carried by the Lessee relating to the Equipment and (2) confirming
that all premiums due thereon have been paid.

        Capitalized terms not otherwise defined herein or in the exhibits
attached hereto have the meaning assigned thereto in the Lease.





                                     A-3
<PAGE>   69
                                   EXHIBIT A
                       to Certificate of Insurance Broker



                   GATX Corporation Excess Liability Program
                    ________ __, 199_ to _________  __, 199_


Umbrella Liability - Occurrence Basis        
Westchester Fire Insurance Company    $1,000,000 Each Occurrence and Aggregate
Policy #CUA-100999-0                  as Applicable Excess of $3,500,000 Each
                                      Claim/$9,000,000 aggregate as applicable
                                        
                                        
Excess Liability - Claims Made Basis    
Zurich Reinsurance (UK) Ltd.          $50,000,000 Each Claim and Aggregate as
Lexington Insurance Company           Applicable, Excess of $1,000,000 Each
New Hampshire Insurance Company       Claim in turn Excess of $3,500,000 Each
St. Paul Reinsurance Company Ltd.     Claim / $9,000,000 aggregate as applicable
Policy #94 NAC 061                      






                                     A-4
<PAGE>   70
                                                                       EXHIBIT B


                             INSURANCE REQUIREMENTS

        The following applies to the policies indicated on Exhibit A:

        1.      The policies are in such amounts and for such risks and with
such insurance companies and subject to such self-insurance not less
comprehensive in amounts and against risks customarily insured against by
Lessee in respect of equipment owned or leased by it similar in type to the
Equipment and consistent with prudent industry standards for companies engaged
in the full service leasing of railcars.

        2.      The policies have a third party liability limit of not less
than $50,000,000 per occurrence or in the aggregate, and provide coverage
excess of $3,500,000 per occurrence (and $9,000,000 in the aggregate) primary
general liability.

        3.      The policies:

                (i)      provide that if any such insurance is cancelled or
        terminated (other than for normal expiration) for any reason whatever,
        the Lessor, Indenture Trustee and Owner Participant shall receive 30
        days prior notice of such cancellation or termination,

                (ii)     name the Owner Participant, Lessor (both as lessor of
        the Equipment and in its individual capacity) and the Indenture Trustee
        as additional insured as their interests may appear (but only as
        respects liability arising out of the Operative Agreements or the
        Equipment),

                (iii)    provide that inasmuch as such public liability
        insurance policies cover more than one insured, all terms, conditions,
        insuring agreements and endorsements, with the exceptions of limits of
        liability and liability for premiums, commissions, assessments or
        calls, operate in the same manner as if there were a separate policy or
        policies covering each insured,

                (iv)     waive rights of subrogation against the Owner
        Participant, Lessor (both as lessor of the Equipment and in its
        individual capacity) and the Indenture Trustee,

                (v)      provide that neither the Owner Participant, Lessor
        (both as lessor of the Equipment and in its individual capacity) nor
        the Indenture Trustee shall have any liability or obligation for
        insurance premiums whether for coverage before or after cancellation or
        termination of any such policies,





                                     B-1
<PAGE>   71
                (vi)     shall be primary without contribution from any similar
        insurance maintained by Owner Participant, Lessor or Indenture Trustee.

                (vii)  provides for sudden and accidental pollution coverage
        due to collision or overturn of railcars arising out of the use or
        operation of the units.  The scope of this coverage includes clean up
        should Lessee become obligated to pay (other than on property owned,
        leased or occupied by Lessee).





                                     B-2
<PAGE>   72
                                                         Schedule 1
                                                         Participation Agreement



             DESCRIPTION OF EQUIPMENT, DESIGNATION OF BASIC GROUPS,
              DESIGNATION OF FUNCTIONAL GROUPS, AND EQUIPMENT COST

                                  See Attached





<PAGE>   73
                                                         Schedule 2
                                                         Participation Agreement



         COMMITMENT PERCENTAGE AND PAYMENT INFORMATION FOR PARTICIPANTS

1.      The percentage representing the Loan Participant's Commitment is [85%]
        All Payments to Loan Participant should be made by wire transfer of
        immediately available funds to:

                  The First National Bank of Chicago
                  ABA No. 071000013
                  Clearing Account 48115377
                  for credit to trust number 19-203567-1
                  Attn:  J. Kinney GATC Trust No. 96-1

2.       The percentage representing the Owner Participant's Commitment is
         [15%] All payments to Dreyfus Service Corporation [AMSOUTH LEASING
         CORPORATION], as Owner Participant should be made by wire transfer of
         immediately available funds to:

                  The Bank of New York
                  ABA No. 021000018
                  Credit:  Dreyfus Service Corporation
                  Account # 8540128589

                  [AMSOUTH LEASING CORPORATION
                  1900 FIFTH AVENUE, NORTH
                  BIRMINGHAM, ALABAMA  35202
                  ABA NO. 062000019
                  ACCOUNT # 00201332
                  ATTN:    AMSOUTH LEASING OPERATION DEPARTMENT
                           (205) 326-5588]





<PAGE>   74
                                                         Schedule 3
                                                         Participation Agreement



                        SCHEDULE OF BASIC RENT PAYMENTS


                                  See Attached





<PAGE>   75
                                                         Schedule 4
                                                         Participation Agreement



            SCHEDULE OF STIPULATED LOSS VALUE AND TERMINATION VALUE

         The Stipulated Loss Value for a Unit of Equipment as of the Basic Term
Commencement Date and each Rent Payment Date and Determination Date shall be an
amount equal to the percentage of the Equipment Cost for such Unit set opposite
such date in this schedule.  The Termination Value for a Unit of Equipment as
of each Rent Payment Date and Determination Date shall be an amount equal to
the percentage of the Equipment Cost for such Unit set opposite such date in
this schedule.


                                  See Attached





<PAGE>   76
                                                         Schedule 5 
                                                         Participation Agreement


                            TERMS OF EQUIPMENT NOTES


                                  See Attached





<PAGE>   77
                                                         Schedule 6
                                                         Participation Agreement


                           EARLY PURCHASE INFORMATION

Basic Group I

Early Purchase Date:

Early Purchase Price
  [AMSOUTH: (INCLUDING
  DEFERRED PORTION)]:        ______% (stated as a percentage of Equipment Cost)

[AMSOUTH:
PORTION PAYABLE ON
  EARLY PURCHASE DATE:       ______% (STATED AS A PERCENTAGE OF EQUIPMENT COST)

DEFERRED PORTION:            ______% (STATED AS A PERCENTAGE OF EQUIPMENT COST)

DEFERRED PORTION PAYMENTS
(STATED AS A PERCENTAGE
OF EQUIPMENT COST):]


Basic Group II
- --------------

Early Purchase Date:

Early Purchase Price
  [AMSOUTH: (INCLUDING
  DEFERRED PORTION)]:        ______% (stated as a percentage of Equipment Cost)

[AMSOUTH:
PORTION PAYABLE ON
  EARLY PURCHASE DATE:       ______% (STATED AS A PERCENTAGE OF EQUIPMENT COST)

DEFERRED PORTION:            ______% (STATED AS A PERCENTAGE OF EQUIPMENT COST)

DEFERRED PORTION PAYMENTS
(STATED AS A PERCENTAGE
OF EQUIPMENT COST):]





<PAGE>   78
                                                         Schedule 7
                                                         Participation Agreement



                        BASIC TERM PURCHASE INFORMATION


Basic Term Purchase Price:

         Basic Group I:   ______%

         Basic Group II:  ______%





                                      2
<PAGE>   79

                                                                      Appendix A
                                                         Participation Agreement
                                                       Equipment Lease Agreement
                                          Trust Indenture and Security Agreement
                                                                 Trust Agreement
                                                           (GATC Trust No. 96-1)

                                  DEFINITIONS

General Provisions

         The following terms shall have the following meanings for all purposes
of the Operative Agreements referred to below, unless otherwise defined in an
Operative Agreement or the context thereof shall otherwise require and such
meanings shall be equally applicable to both the singular and the plural forms
of the terms herein defined.  In the case of any conflict between the
provisions of this Appendix A and the provisions of the main body of any
Operative Agreement, the provisions of the main body of such Operative
Agreement shall control the construction of such Operative Agreement.

         Unless the context otherwise requires, (i) references to agreements
shall be deemed to mean and include such agreements as the same may be amended,
supplemented and otherwise modified from time to time, and (ii) references to
parties to agreements shall be deemed to include the permitted successors and
assigns of such parties.

Defined Terms

         "AAR" shall mean the Association of American Railroads or any
successor thereto.

         "Affiliate" of any Person shall mean any other Person which directly
or indirectly controls, or is controlled by, or is under a common control with,
such Person.  The term "control" means the possession, directly or indirectly,
of the power to direct or cause the direction of the management and policies of
a Person, whether through the ownership of voting securities, by contract or
otherwise, and the terms "controlling" and "controlled" shall have meanings
correlative to the foregoing.

         "After-Tax Basis" shall mean, with respect to any payment received or
accrued by any Person, that the amount of such payment is supplemented by a
further payment or payments so that the sum of all such payments, after
reduction for all Taxes payable by such Person imposed by any taxing authority,
shall be equal to the payment due to such Person.

         "Alternative  Minimum Tax" shall mean the alternative minimum tax
imposed under Section 55 of the Code.

         "Appraisal" shall have the meaning specified in Section 4.3(a) of the
Participation Agreement.
<PAGE>   80
         "Average Life Date" shall mean, with respect to an Equipment Note, the
date which follows the prepayment date or, in the case of an Equipment Note not
being prepaid, the date of such determination, by a period equal to the
Remaining Weighted Average Life of such Equipment Note.

         "Bankruptcy Code" shall mean the United States Bankruptcy Reform Act
of 1978, as amended from time to time, 11 U.S.C. Section 101 et. seq.

         "Basic Group" shall mean each of the two basic groups of Equipment so
designated in Schedule 1 to the Participation Agreement.

         "Basic Prospectus" shall mean the prospectus contained in the
Registration Statement when the most recent post- effective amendment thereto
became effective.

         "Basic Rent" shall mean, with respect to any Unit, all rent payable by
the Lessee to the Lessor pursuant to Section 3.2 of the Lease for the Basic
Term for such Unit, and all rent payable pursuant to Section 22.4 of the Lease
for any Renewal Term for such Unit.

         "Basic Term" shall have the meaning specified in Section 3.1 of the
Lease.

         "Basic Term Commencement Date" shall mean August 28, 1996.

         "Basic Term Expiration Date" shall mean (i) with respect to the Units
related to Lease Supplement No. I, August 28, 20__, and (ii) with respect to
the Units related to Lease Supplement No. II, August 28, 20__.

         "Basic Term Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 7 to the
Participation Agreement applicable to such Unit and the Equipment Cost for such
Unit.

         "Beneficial Interest" shall mean the interest of the Owner Participant
under the Trust Agreement.

         "Bill of Sale" shall mean the full warranty bill of sale, dated the
Closing Date or the date that any Replacement Unit is subjected to the Lease,
from Lessee to Owner Trustee covering the Units delivered on the Closing Date
or such Replacement Unit, as the case may be.

         "Business Day" shall mean any day other than a Saturday, Sunday or a
day on which commercial banking institutions are authorized or required by law,
regulation or executive order to be closed in New York, New York, Chicago,
Illinois, Pittsburgh, Pennsylvania, Birmingham, Alabama, the city and state in
which the principal corporate trust office of the Owner Trustee is located, or,
until the Lien of the Indenture has been discharged, the city and state in
which the principal corporate trust office of the Indenture Trustee is located.





                                     -2-
<PAGE>   81
         "Certificateholder" means the Person in whose name a Pass Through
Certificate is registered in the register for Pass Through Certificates of a
particular series.

         "Claims" shall have the meaning specified in Section 7.2 of the
Participation Agreement.

         "Closing Date" shall have the meaning specified in Section 2.1 of the
Participation  Agreement.

         "Code" shall mean the Internal Revenue Code of 1986, as amended from
time to time.

         "Commitment" with respect to the Owner Participant, shall have the
meaning specified in Section 2.2(a) to the Participation Agreement and with
respect to the Loan Participant, shall have the meaning specified in Section
2.2(b) to the Participation Agreement.

         "Debt Rate" shall mean as of the date of determination, a rate equal
to the rate of interest per annum borne by the Equipment Notes then outstanding
(computed on the basis of a 360-day year of twelve 30-day months).

         [AMSOUTH:  "DEFERRED PORTION" SHALL MEAN THAT PORTION OF THE EARLY
PURCHASE PRICE, THE PAYMENT OF WHICH MAY BE DEFERRED BY THE LESSEE PAST THE
APPLICABLE EARLY PURCHASE DATE FOR SUCH UNIT OR UNITS, AS SET FORTH IN SCHEDULE
6 TO THE PARTICIPATION AGREEMENT.]

         [AMSOUTH:  "DEFERRED PORTION PAYMENT DATES" SHALL MEAN THE DEFERRED
PORTION PAYMENT DATES SPECIFIED ON SCHEDULE 6 TO THE PARTICIPATION AGREEMENT
FOR A RELATED BASIC GROUP OF UNITS.]

         "Determination Date" shall mean the 28th day of any calendar month.

         "Early Purchase Date" shall mean the early purchase date specified on
Schedule 6 to the Participation Agreement for a related Basic Group of Units.

         "Early Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 6 to the
Participation Agreement for the Basic Group to which such Unit belongs and the
Equipment Cost for such Unit.

         "Equipment" shall mean collectively those items of railroad rolling
stock described in the Lease Supplements and the Indenture Supplements,
together with any and all accessions, additions, improvements and replacements
from time to time incorporated or installed in any item thereof which are the
property of the Owner Trustee pursuant to the terms of a Bill of Sale or the
Lease, and "Unit" shall mean individually the various items thereof.

         "Equipment Cost" shall mean, for each Unit, the purchase price
therefor paid by the Owner Trustee to the Lessee pursuant to Section 2 of the
Participation Agreement and as set forth in Schedule 1 to the Participation
Agreement with respect to such Unit.  Notwithstanding





                                     -3-
<PAGE>   82
anything in the Operative Agreements to the contrary, the Equipment Cost for
any Replacement Unit shall be deemed to be the Equipment Cost or deemed
Equipment Cost of the Unit it replaced.

         "Equipment Notes" shall mean the Equipment Notes, each to be
substantially in the form therefor set forth in Section 2.01 of the Indenture,
issued by the Owner Trustee pursuant to Section 2.02 of the Indenture, and
authenticated by the Indenture Trustee, in principal amounts, maturities and
bearing interest at the rates and payable as provided in Section 2.02 of the
Indenture and secured as provided in the Granting Clause of the Indenture, and
shall include any Equipment Notes issued in exchange therefor or replacement
thereof pursuant to Section 2.07 or 2.08 of the Indenture.  A "related"
Equipment Note, when used with respect to any Unit or Units of Equipment, shall
mean one of the Equipment Notes issued with respect to the Lease Supplement
under which such Unit or Units of Equipment is or are leased.

         "ERISA" shall mean the Employee Retirement Income Security Act of
1974, as amended from time to time, or any successor law.

         "Event of Loss" shall have the meaning specified in Section 11.1 of
the Lease.

         "Excepted Property" shall mean (i) all indemnity payments (including,
without limitation, payments pursuant to Section 7 of the Participation
Agreement and payments under the Tax Indemnity Agreement) to which the Owner
Participant, the Owner Trustee, as trustee or in its individual capacity, or
any of their respective successors, permitted assigns, directors, officers,
employees, servants and agents is entitled pursuant to the Operative
Agreements, (ii) any right, title or interest of the Owner Trustee, as trustee
or in its individual capacity, or the Owner Participant to any payment which by
the terms of Section 17 of the Lease or any corresponding payment under Section
3.3 of the Lease shall be payable to or on behalf of the Owner Trustee, as
trustee or in its individual capacity, or to the Owner Participant, as the case
may be, (iii) any insurance proceeds payable under insurance maintained by the
Owner Trustee, as trustee or in its individual capacity, or the Owner
Participant pursuant to Section 12.5 of the Lease, (iv) any insurance proceeds
payable to or on behalf of the Owner Trustee, as trustee or in its individual
capacity, or to the Owner Participant, under any public liability insurance
maintained by Lessee pursuant to Section 12 of the Lease (which shall include
the amount of any self-insured retention paid by the Lessee) or by any other
Person, (v) Transaction Costs or other amounts or expenses paid or payable to,
or for the benefit of Owner Trustee, as trustee or in its individual capacity,
or Owner Participant pursuant to the Participation Agreement or the Trust
Agreement, (vi) all right, title and interest of Owner Participant or Owner
Trustee, as trustee or in its individual capacity, in or relating to any
portion of the Units and any other property (tangible or intangible), rights,
titles or interests to the extent any of the foregoing has been released from
the Lien of the Indenture pursuant to the terms thereof, (vii) upon termination
of the Indenture pursuant to the terms thereof with respect to any Unit, all
remaining amounts which shall have been paid or are payable by Lessee and
calculated on the basis of Stipulated Loss Value, (viii) any rights of the
Owner Participant or the Owner Trustee, as trustee and in its individual
capacity, to demand, collect, sue for, or otherwise receive and enforce payment
of the foregoing





                                     -4-
<PAGE>   83
amounts, (ix) any amount payable to the Owner Participant by any Transferee as
the purchase price of the Owner Participant's interest in the Trust Estate in
compliance with the terms of the Participation Agreement and the Trust
Agreement and (x) the respective rights of the Owner Trustee, as trustee and in
its individual capacity, or the Owner Participant to the proceeds of and
interest on the foregoing.

         "Fair Market Renewal Term" shall have the meaning specified in Section
22.4 of the Lease.

         "Fair Market Rental Value" or "Fair Market Sales Value" with respect
to any Unit of Equipment shall mean the cash rent or cash price obtainable for
such Unit in an arm's length lease or sale between an informed and willing
lessee or purchaser under no compulsion to lease or purchase, as the case may
be, and an informed and willing lessor or seller, under no compulsion to lease
or sell, as the case may be, as the same shall be specified by agreement
between Lessor and Lessee.  If the parties are unable to agree upon a Fair
Market Rental Value and/or a Fair Market Sales Value within 30 days after
delivery of notice by Lessee pursuant to Section 22.2 of the Lease, or
otherwise where such determination is required, within a reasonable period of
time, such value shall be determined by appraisal.  Lessee will within 15 days
after such 30-day period provide Lessor the name of an appraiser that would be
satisfactory to Lessee, and Lessor and Lessee will consult with the intent of
selecting a mutually acceptable appraiser.  If a mutually acceptable appraiser
is selected, the Fair Market Rental Value or the Fair Market Sales Value, as
the case may be, shall be determined by such appraiser and Lessee shall bear
the cost thereof.  If Lessee and Lessor are unable to agree upon a single
appraiser within such 15-day period, two independent qualified appraisers, one
chosen by Lessee and one chosen by Lessor shall jointly determine such value
and Lessor shall bear the cost of the appraiser selected by Lessor and Lessee
shall bear the cost of the appraiser selected by Lessee.  If such appraisers
cannot agree on the amount of such value within 15 days of appointment, one
independent qualified appraiser shall be chosen by the American Arbitration
Association.  All three appraisers shall make a determination within a period
of 15 days following appointment, and shall promptly communicate such
determination in writing to Lessor and Lessee.  If there shall be a panel of
three appraisers, the three appraisals shall be averaged and such average shall
be the Fair Market Rental Value or Fair Market Sales Value, as the case may be.
The determination made shall be conclusively binding on both the Lessor and
Lessee.  If there shall be a panel of three appraisers, Lessee and Lessor shall
equally share the cost of the third appraiser.  If such appraisal is pursuant
to Section 6.1(e) or is in connection with the exercise of remedies set forth
in Section 15 of the Lease, Lessee shall pay the costs of such appraisal.
Notwithstanding any of the foregoing, for the purposes of Section 15 of the
Lease, the Fair Market Rental Value or the Fair Market Sales Value, as the case
may be, shall be zero with respect to any Unit if Lessor is unable to recover
possession of such Unit in accordance with the terms of paragraph (b) of
Section 15.1 of the Lease.

         "Final Prospectus" shall mean the prospectus supplement relating to
the Pass Through Certificates that was first filed pursuant to Rule 424(b)
promulgated pursuant to the Securities Act of 1933, as amended, together with
the Basic Prospectus.





                                     -5-
<PAGE>   84
         "Fixed Rate Renewal Term" shall have the meaning specified in Section
22.4(a) of the Lease.

         "FRA" shall mean the Federal Railroad Administration or any successor
thereto.

         "Functional Group" shall mean each and all of the various groups of
Units so designated in Schedule 1 to the Participation Agreement.

         "Hazardous Substances" shall mean any hazardous or toxic substances,
materials or wastes, including, but not limited to, those substances,
materials, and wastes listed in the United States Department of Transportation
Hazardous Materials Table (49 CFR 172.101) or by the Environmental Protection
Agency as hazardous substances (40 CFR part 302) and amendments thereto, or
such substances, materials and wastes which are or become regulated under any
applicable local, state or federal law or the equivalent under applicable
foreign laws including, without limitation, any materials, waste or substance
which is (a) petroleum, (b) asbestos, (c) polychlorinated biphenyls, (d)
defined as a "hazardous material," "hazardous substance" or "hazardous waste"
under applicable local, state or federal law or the equivalent under applicable
foreign laws, (e) designated as a "hazardous substance" pursuant to Section 311
of the Clean Water Act, (f) defined as "hazardous waste" pursuant to Section
1004 of the Resource Conservation and Recovery Act, or (g) defined as
"hazardous substances" pursuant to Section 101 of the Comprehensive
Environmental Response, Compensation, and Liability Act.

         "Income Tax" shall have the meaning specified in Section 7.1(l) of the
Participation Agreement.

         "Indemnified Person" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Indenture" or "Trust Indenture" shall mean the Trust Indenture and
Security Agreement (GATC Trust No. 96-1), dated as of August 28, 1996 between
the Owner Trustee, in the capacities described therein, and the Indenture
Trustee.  The term "Indenture" shall include, except where the context
otherwise requires, each Indenture Supplement entered into pursuant to the
terms of the Indenture.

         "Indenture Default" shall mean an Indenture Event of Default or an
event which with notice or the lapse of time or both would become an Indenture
Event of Default.

         "Indenture Estate" shall have the meaning specified in the Granting
Clause of the Indenture.

         "Indenture Event of Default" shall have the meaning specified in
Section 4.01 of the Indenture.





                                     -6-
<PAGE>   85
         "Indenture Investment" shall mean any obligation issued or guaranteed
by the United States of America or any of its agencies for the payment of which
the full faith and credit of the United States of America is pledged.

         "Indenture Supplement" shall mean an Indenture Supplement (GATC Trust
No. 96-1) dated the Closing Date or the date that any Replacement Unit is
subjected to the lien and security interest of the Indenture, substantially in
the form of Exhibit A to the Indenture, between the Owner Trustee, in the
capacities described therein, and the Indenture Trustee, covering the Units
delivered on the Closing Date or such Replacement Unit, as the case may be.  A
"related" Indenture Supplement, when used with respect to any Unit or Units of
Equipment, shall mean the Indenture Supplement under which such Unit or Units
of Equipment is or are included in the Indenture Estate.

         "Indenture Trustee" shall mean The First National Bank of Chicago, a
national banking association, as trustee under the Indenture and its successors
thereunder.

         "Indenture Trustee Agreements" shall mean the Operative Agreements to
which the Indenture Trustee is or will be a party.

         "Interchange Rules" shall mean the interchange rules or supplements
thereto of the Mechanical Division of the Association of American Railroads, as
the same may be in effect from time to time.

         "Investment Banker" shall mean an independent investment banking
institution of national standing appointed by Lessee or, if the Indenture
Trustee does not receive notice of such appointment at least ten days prior to
a scheduled prepayment date or if a Lease Event of Default under the applicable
Lease shall have occurred and be continuing, appointed by the Indenture
Trustee.

         "Late Rate" shall mean the lesser of 2% over the Debt Rate and the
maximum interest rate from time to time permitted by law.

         "Lease" or "Lease Agreement" or "Equipment Lease" shall mean the
Equipment Lease Agreement (GATC Trust No. 96- 1), relating to the Equipment,
dated as of August 28, 1996, between the Owner Trustee, in the capacities
described therein, as Lessor, and the Lessee.  The term "Lease" shall, except
where the context otherwise requires, include each Lease Supplement entered
into pursuant to the terms of the Lease.

         "Lease Default" shall mean a Lease Event of Default or an event which
with notice or lapse of time or both would become a Lease Event of Default.

         "Lease Event of Default" shall mean a Lease Event of Default under the
Lease as specified in Section 14 thereof.





                                     -7-
<PAGE>   86
         "Lease Supplement" shall mean a Lease Supplement (GATC Trust No.
96-1), dated the Closing Date or the date that any Replacement Unit is
subjected to the Lease, substantially in the form of Exhibit A to the Lease,
between the Lessor and the Lessee, covering the Units delivered on the Closing
Date or such Replacement Unit, as the case may be.  A "related" Lease
Supplement, when used with respect to any Unit or Units of Equipment, shall
mean the Lease Supplement under which such Unit or Units of Equipment is or are
leased.

         "Lease Term" shall mean, with respect to any Unit, the Basic Term
applicable to such Unit and any Renewal Term applicable to such Unit then in
effect.

         "Lessee" shall mean General American Transportation Corporation, a New
York corporation, and its successors and permitted assigns.

         "Lessee Agreements" shall mean the Operative Agreements to which
Lessee is or will be a party.

         "Lessor" shall have the meaning specified in the recitals to the
Lease.

         "Lessor's Liens" means any Lien affecting, on or in respect of the
Equipment, the Lease or the Trust Estate arising as a result of (i) claims
against Lessor (in its individual capacity or as Owner Trustee) or the Owner
Participant, not related to the transactions contemplated by the Operative
Agreements, or (ii) acts or omissions of the Lessor (in its individual capacity
or as Owner Trustee) or the Owner Participant not related to the transactions
contemplated by the Operative Agreements or in breach of any covenant or
agreement of such Person set forth in any of the Operative Agreements, or (iii)
taxes imposed against the Lessor (in its individual capacity or as Owner
Trustee) or the Owner Participant or the Trust Estate which are not indemnified
against by the Lessee pursuant to the Participation Agreement or under the Tax
Indemnity Agreement.

         "Lien" shall mean any mortgage, pledge, security interest, lien,
encumbrance, lease, disposition of title or other charge of any kind on
property.

         "Limited Use Property" shall have the meaning set forth in Rev. Proc.
76-30, 1976-2 C.B. 647.

         "Loan Participant" shall mean and include each registered holder from
time to time of an Equipment Note issued under the Indenture, including, so
long as it holds any Equipment Notes issued thereunder, the Pass Through
Trustee under the Pass Through Trust Agreement.

         "Majority In Interest" as of a particular date of determination shall
mean with respect to any action or decision of the holders of the Equipment
Notes, the holders of more than 50% in aggregate unpaid principal amount of the
Equipment Notes, if any, then outstanding which are affected by such decision
or action, excluding any Equipment Notes held by the Owner





                                     -8-
<PAGE>   87
Participant or the Lessee or an Affiliate of the Owner Participant or the
Lessee unless all Equipment Notes are so held.

         "Make-Whole Amount" shall mean, with respect to the principal amount
of any Equipment Note to be prepaid on any prepayment date, the amount which
the Investment Banker determines as of the third Business Day prior to such
prepayment date to equal the product obtained by multiplying (a) the excess, if
any, of (i) the sum of the present values of all the remaining scheduled
payments of principal and interest from the prepayment date to maturity of such
Equipment Note, discounted semi-annually on each August 28 and February 28 at a
rate equal to the Treasury Rate plus 0.5%, based on a 360-day year of twelve
30-day months, over (ii) the aggregate unpaid principal amount of such
Equipment Note plus any accrued but unpaid interest thereon by (b) a fraction
the numerator of which shall be the principal amount of such Equipment Note to
be prepaid on such prepayment date and the denominator of which shall be the
aggregate unpaid principal amount of such Equipment Note; provided that the
aggregate unpaid principal amount of such Equipment Note for the purpose of
clause (a)(ii) and (b) of this definition shall be determined after deducting
the principal installment, if any, due on such prepayment date.

         "Modification" shall have the meaning specified in Section 9.2 of the
Lease.

         "Net Economic Return" shall mean the pattern of earnings within a 10%
variance during any calendar year, net after-tax book yield and total after-tax
cash flow [AMSOUTH: (BUT NOT THE PATTERN OF EARNINGS)] expected by the original
Owner Participant with respect to the Equipment (both through the Early
Purchase Date and the Basic Term Expiration Date), utilizing the multiple
investment sinking fund method of analysis and the same assumptions as used by
such Owner Participant in making the computations of Basic Rent, Stipulated
Loss Value, Termination Value, Basic Term Purchase Price and Early Purchase
Price initially set forth in Schedules 3, 4, 6 and 7 to the Participation
Agreement.

         "Non-Severable Modification" shall mean any Modification that is not
readily removable without impairing the value, utility or remaining useful life
of the Equipment or any Unit immediately prior to removal of such modification,
other than in a de minimis nature.

         "Officer's Certificate" shall mean a certificate signed (i) in the
case of a corporation by the President, any Vice President, the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary of such
corporation, (ii) in the case of a partnership by the Chairman of the Board,
the President or any Vice President, the Treasurer or an Assistant Treasurer of
a corporate general partner, and (iii) in the case of a commercial bank or
trust company, the Chairman or Vice Chairman of the Executive Committee or the
Treasurer, any Trust Officer, any Vice President, any Executive or Senior or
Second or Assistant Vice President, or any other officer or assistant officer
customarily performing the functions similar to those performed by the persons
who at the time shall be such officers, or to whom any corporate trust matter
is referred because of his knowledge of and familiarity with the particular
subject.





                                     -9-
<PAGE>   88
         "Operative Agreements" shall mean the Participation Agreement, the
Bill of Sale, the Trust Agreement, the Pass Through Trust Agreement, the Pass
Through Trust Supplements, the Pass Through Certificates, the Equipment Notes,
the Lease, the Lease Supplements, the Indenture, the Indenture Supplements, the
Tax Indemnity Agreement and the Underwriting Agreement.

         "Outside Fixed Renewal Date" shall have the meaning specified in
Section 22.4(a) of the Lease.

         "Owner Participant" shall mean Dreyfus Service Corporation, a New York
corporation [AMSOUTH LEASING CORPORATION, AN ALABAMA BANKING CORPORATION], and
its successors and permitted assigns.

         "Owner Participant Agreements" shall mean the Operative Agreements to
which the Owner Participant is or will be a party.

         "Owner Trustee" shall mean First Security Bank, N.A., a national
banking association, not in its individual capacity but solely as Owner Trustee
under the Trust Agreement and its successors thereunder.

         "Owner Trustee Agreements" shall mean the Operative Agreements to
which the Owner Trustee, either in its individual or fiduciary capacity, is or
will be a party.

         "Parent" means GATX Corporation, a New York corporation, and its
successors and assigns.

         "Participants" shall mean the Loan Participant and the Owner
Participant.

         "Participation Agreement" shall mean the Participation Agreement (GATC
Trust No. 96-1) dated as of August 28, 1996, among the Lessee, the Pass Through
Trustee, the Owner Participant, the Owner Trustee and the Indenture Trustee.

         "Pass Through Certificates" shall mean the Pass Through Certificates
issued pursuant to each of the Pass Through Trust Supplements and the Pass
Through Trust Agreement.

         "Pass Through Trust Agreement" shall mean the Pass Through Trust
Agreement, dated as of August 1, 1992, between the Lessee and the Pass Through
Trustee.

         "Pass Through Trust Supplement" shall mean either of Trust Supplement
No. 6 dated as of August 28, 1996 or Trust Supplement No. 7 dated as of August
28, 1996, each between the Lessee and the Pass Through Trustee, each of which
supplements the Pass Through Trust Agreement (i) by creating a separate trust
for the holders of certain Pass Through Certificates, (ii) by authorizing the
issuance of such Pass Through Certificates and (iii) by establishing the terms
of such Pass Through Certificates.





                                     -10-
<PAGE>   89
         "Pass Through Trustee" shall mean The First National Bank of Chicago,
a national banking association, in its capacity as trustee under the Pass
Through Trust Agreement, as supplemented by the Pass Through Trust Supplements,
and each other person which may from time to time be acting as successor
trustee under the Pass Through Trust Agreement, as supplemented by the Pass
Through Trust Supplement.

         "Pass Through Trustee Agreements" shall mean the Operative Agreements
to which the Pass Through Trustee is or will be a party.

         "Permitted Liens" with respect to the Equipment and each Unit thereof
shall mean: (i) the interests of the Lessee and the Owner Trustee under the
Lease and the Lease Supplements; (ii) the interest of the Lessee and any
sublessee as provided in any sublease permitted pursuant to Section 8.3 of the
Lease; (iii) any Liens thereon for taxes, assessments, levies, fees and other
governmental and similar charges not due and payable or the amount or validity
of which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (iv) any Liens of mechanics, suppliers, materialmen, laborers,
employees, repairmen and other like Liens arising in the ordinary course of
Lessee's (or if a sublease is then in effect, any sublessee's) business
securing obligations which are not due and payable or the amount or validity of
which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (v) the Lien and security interest granted to the Indenture
Trustee under and pursuant to the Indenture, and the respective rights of the
Loan Participant, the Indenture Trustee, the Owner Participant and the Owner
Trustee under the Operative Agreements; (vi) Liens arising out of any judgment
or award against the Lessee (or any sublessee permitted pursuant to Section 8.3
of the Lease) with respect to which an appeal or proceeding for review is being
presented in good faith and for the payment of which adequate reserves have
been provided as required by generally accepted accounting principles or other
appropriate provisions have been made and with respect to which there shall
have been secured a stay of execution pending such appeal or proceeding for
review and there exists no material risk of sale, forfeiture, loss, or loss of
or interference with the use or possession of any Unit or any interest therein
or interference with the payment of Rent, and (vii) salvage rights of insurers
under insurance policies maintained pursuant to Section 12 of the Lease.

         "Permitted Subleases" shall have the meaning specified in Section 8.3
of the Lease.

         "Person" shall mean an individual, partnership, limited liability
company, corporation, trust, association or unincorporated organization, and a
government or agency or political subdivision thereof.

         "Preliminary Final Prospectus" shall mean any preliminary prospectus
supplement to the Basic Prospectus which describes the Pass Through
Certificates and the offering thereof and is used prior to the filing of the
Final Prospectus, together with the Basic Prospectus.





                                     -11-
<PAGE>   90
         "Premium Termination Date" shall mean (i) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. I, August 28,
20__, (ii) in the case of the Series of Equipment Notes designated as Series B
for Lease Supplement No. I, August 28, 20__, (iii) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. II, August 28,
20__, and (iv) in the case of the Series of Equipment Notes designated as
Series B for Lease Supplement No. II August 28, 20__.

         "Pricing Date" shall mean the date on which the Underwriting Agreement
is executed by the Lessee and the Underwriters.

         "Refunding Date" shall have the meaning specified in Section 10.2(a)
of the Participation Agreement.

         "Registration Statement" shall mean the registration statement filed
by the Lessee (File Number 33-64697), including incorporated documents,
exhibits and financial statements, as amended at the time of the Closing Date,
including any post-effective amendment thereto which has become effective prior
to the Closing Date.

         "Related Indemnitee Group" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Related Transaction" means the additional leveraged lease transaction
with respect to which the Pass Through Trustee has agreed to acquire the
equipment notes to be issued pursuant to the participation agreement dated as
of August 28, 1996 among the Lessee, the Pass Through Trustee, AmSouth Leasing
Corporation, the Owner Trustee and the Indenture Trustee.

         "Remaining Weighted Average Life" shall mean, with respect to any date
of prepayment or any date of determination of any Equipment Note, the number of
days equal to the quotient obtained by dividing (a) the sum of the products
obtained by multiplying (i) the amount of each then remaining principal payment
on such Equipment Note by (ii) the number of days from and including the
prepayment date or date of determination to but excluding the scheduled payment
date of such principal payment by (b) the unpaid principal amount of such
Equipment Note.

         "Renewal Term" shall mean, with respect to any Unit, any term in
respect of which the Lessee shall have exercised its option to renew the Lease
for such Unit pursuant to Section 22.4 thereof, including any Fixed Rate
Renewal Term or Fair Market Renewal Term.

         "Rent" shall mean all Basic Rent and Supplemental Rent.

         "Rent Payment Date" or "Payment Date" shall mean each August 28 and
February 28 of each year occurring during the Lease Term, commencing February
28, 1997, provided that if any such date shall not be a Business Day, then
"Rent Payment Date" or "Payment Date" shall mean the next succeeding Business
Day.





                                     -12-
<PAGE>   91
         "Replacement Unit" shall mean a covered hopper car or tank car, as the
case may be, which shall have been leased under the Lease pursuant to Section
11.4 of the Lease.

         "Required Modification" shall have the meaning specified in Section
9.1 of the Lease.

         "Responsible Officer" shall mean, with respect to the subject matter
of any covenant, agreement or obligation of any party contained in any
Operative Agreement, the President, or any Vice President, Assistant Vice
President, Treasurer, Assistant Treasurer or other officer, who in the normal
performance of his operational responsibility would have knowledge of such
matters and the requirements with respect thereto.

         "Scheduled Closing Date" shall have the meaning specified in Section
2.7 of the Participation Agreement.

         "Security" shall have the same meaning as in Section 2(1) of the
Securities Act of 1933, as amended.

         "Series" shall mean each of the two series of Equipment Notes for each
Lease Supplement so designated in Exhibit B to the Indenture.

         "Severable Modification" shall mean any Modification that is readily
removable without causing material damage to the Equipment or any Unit and
without diminishing the value, utility or useful life of such Unit below the
value, utility or useful life of such Unit immediately prior to such
Modification, assuming that such Unit was then in the condition required to be
maintained by the terms of the Lease, other than in a de minimis nature.

         "Special Purchase Defeasance" shall mean, with respect to any election
by Lessee to purchase Units under Section 22.1 or 22.3 of the Lease, the
deposit by Lessee with the Indenture Trustee prior to the date as of which
Lessor shall have declared the Lease to be in default as a result of a Lease
Event of Default under Section 14(c), 14(d), 14(e), 14(f) or 14(i) of the Lease
(in circumstances where such Lease Event of Default occurs after the date of
Lessee's notice to purchase under Sections 22.1 or 22.3 but before the Early
Purchase Date or the expiration of the Basic Term or any Renewal Term, as
applicable), of an amount sufficient to pay (i) the Early Purchase Price,
together with all other amounts due and owing by the Lessee under the Operative
Agreements, with respect to those Units which Lessee has elected to purchase on
the Early Purchase Date under Section 22.1 of the Lease, or (ii) the Basic Term
Purchase Price or Fair Market Sales Value, as the case may be, together with
all other amounts due and owing by the Lessee under the Operative Agreements,
with respect to those Units which Lessee has elected to purchase at the
expiration of the Basic Term or any Renewal Term, as applicable, under Section
22.3 of the Lease.  All amounts deposited by Lessee with the Indenture Trustee
in connection with a Special Purchase Defeasance shall be held and invested by
the Indenture Trustee in accordance with Section 6.04(b) of the Indenture
pending consummation of the purchase of the related Units on the Early Purchase
Date or upon the expiration of the Basic Term or the related Renewal Term, as
applicable.





                                     -13-
<PAGE>   92
         "Specified Investments" shall mean (i) direct obligations of the
United States of America and agencies thereof for which the full faith and
credit of the United States is pledged, (ii) obligations fully guaranteed by
the United States of America, (iii) certificates of deposit issued by, or
bankers' acceptances of, or time deposits with, any bank, trust company or
national banking association incorporated or doing business under the laws of
the United States of America or one of the States thereof having combined
capital and surplus and retained earnings of at least $500,000,000 (including
the Indenture Trustee or Owner Trustee if such conditions are met), and (iv)
repurchase agreements with any financial institution having a combined capital
and surplus of at least $750,000,000 fully collateralized by obligations of the
type described in clauses (i) and (iii) above; provided that if all of the
above investments are unavailable, the entire amount to be invested may be used
to purchase Federal funds from an entity described in (iii) above; and provided
further that no investment shall be eligible as a "Specified Investment" unless
the final maturity or date of return of such investment is 91 days or less from
the date of purchase thereof.

         "STB" shall mean the Surface Transportation Board of the United States
Department of Transportation or any successor thereto.

         "Stipulated Loss Value" for any Unit as of any date of determination
shall mean the amount determined by multiplying the Equipment Cost for such
Unit by the percentage set forth in Schedule 4 to the Participation Agreement
opposite the Rent Payment Date or the Determination Date, as applicable, on
which such Stipulated Loss Value is being determined for the Basic Group to
which such Unit belongs; provided that during any Renewal Term, "Stipulated
Loss Value" shall be determined as provided in Section 22.6 of the Lease.
Anything contained in the Lease or in the Participation Agreement to the
contrary notwithstanding, Stipulated Loss Value for such Unit (both before and
after any adjustment pursuant to Section 2.6 of the Participation Agreement)
will, under any circumstances and in any event, be an amount which, together
with any other amounts required to be paid by Lessee under the Lease in
connection with an Event of Loss, will be at least sufficient to pay in full as
of the date of payment thereof the aggregate unpaid principal of the Equipment
Notes issued in respect of such Unit, together with all unpaid interest and
Make-Whole Amount, if any, thereon accrued to the date on which such amount is
paid in accordance with the terms hereof and all other amounts then due to the
holders of the Equipment Notes.

         "Storage Period" shall have the meaning specified in Section 6.1(c)(i)
of the Lease.

         "Subsidiary" of any Person shall mean any corporation, association, or
other business entity of which more than 50% (by number of votes) of the voting
stock at the time outstanding shall at the time be owned, directly or
indirectly, by such Person or by any other corporation, association or trust
which is itself a Subsidiary within the meaning of this definition, or
collectively by such Person and any one or more such Subsidiaries.

         "Supplemental Rent" shall mean all amounts, liabilities and
obligations (other than Basic Rent) which the Lessee is obligated to pay under
the Operative Agreements to or on behalf of





                                     -14-
<PAGE>   93
any of the other parties thereto, including, but not limited to, Termination
Value and Stipulated Loss Value payments.

         "Taxes" shall have the meaning specified in Section 7.1(b) of the
Participation Agreement.

         "Tax Indemnitee" shall have the meaning specified in Section 7.1 of
the Lease.

         "Tax Indemnity Agreement" shall mean the Tax Indemnity Agreement dated
as of August 28, 1996 (GATC Trust No.  96-1) between the Lessee and the Owner
Participant.

         "Terminated Units" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Date" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Value" for any Unit as of any date of determination shall
mean the amount determined by multiplying the Equipment Cost for such Unit by
the percentage set forth in Schedule 4 to the Participation Agreement opposite
the Rent Payment Date or the Determination Date, as applicable, on which such
Termination Value is being determined for the Basic Group to which such Unit
belongs; provided that during any Renewal Term, "Termination Value" shall be
determined as provided in Section 22.6 of the Lease.  Anything contained in the
Lease or in the Participation Agreement to the contrary notwithstanding,
Termination Value for such Unit (both before and after any adjustment pursuant
to Section 2.6 of the Participation Agreement) will, under any circumstances
and in any event, be an amount which, together with any other amounts required
to be paid by Lessee under the Lease in connection with such termination, will
be at least sufficient to pay in full as of the date of payment thereof the
aggregate unpaid principal of the Equipment Notes issued in respect of such
Unit, together with all unpaid interest and Make-Whole Amount, if any, thereon
accrued to the date on which such amount is paid in accordance with the terms
thereof and all other amounts then due to the holders of the Equipment Notes.

         "Total Equipment Cost" shall mean the sum of the Equipment Costs for
each Unit.

         "Transaction Costs" shall have the meaning specified in Section 2.5(a)
of the Participation Agreement.

         "Transferee" shall have the meaning specified in Section 6.1(a) of the
Participation Agreement.

         "Treasury Rate" shall mean with respect to prepayment of each
Equipment Note, a per annum rate (expressed as a semiannual equivalent and as a
decimal and, in the case of United States Treasury bills, converted to a bond
equivalent yield), determined to be the per annum rate equal to the semiannual
yield to maturity for United States Treasury securities maturing on the Average
Life Date of such Equipment Note, as determined by interpolation between the
most





                                     -15-
<PAGE>   94
recent weekly average yields to maturity for two series of United States
Treasury securities, (A) one maturing as close as possible to, but earlier
than, the Average Life Date of such Equipment Note and (B) the other maturing
as close as possible to, but later than, the Average Life Date of such
Equipment Note, in each case as published in the most recent H.15(519) (or, if
a weekly average yield to maturity for United States Treasury securities
maturing on the Average Life Date of such Equipment Note is reported in the
most recent H.15(519), as published in H.15(519)).  H.15(519) means
"Statistical Release H.15(519), Selected Interest Rates," or any successor
publication, published by the Board of Governors of the Federal Reserve System.
The most recent H.15(519) means the latest H.15(519) which is published prior
to the close of business on the third Business Day preceding the scheduled
prepayment date.

         "Trust" shall have the meaning specified in the Trust Agreement.

         "Trust Agreement" shall mean that certain Trust Agreement (GATC Trust
No. 96-1), dated as of August 28, 1996, between the Owner Participant and the
Owner Trustee.

         "Trust Estate" shall have the meaning set forth in Section 2.2 of the
Trust Agreement.

         "Trustee" shall mean each of the Owner Trustee, the Indenture Trustee
or the Pass Through Trustee and "Trustees" shall mean the Owner Trustee,
Indenture Trustee and the Pass Through Trustee, collectively.

         "Underwriters" shall mean Morgan Stanley & Co. Incorporated and
Salomon Brothers Inc.

         "Underwriting Agreement" shall mean that certain Underwriting
Agreement between the Lessee and the Underwriters, pertaining to the sale of
the Pass Through Certificates.

         "Unit" shall mean each unit or item of Equipment.





                                     -16-


<PAGE>   1

                                                                     EXHIBIT 4.6





                           EQUIPMENT LEASE AGREEMENT
                             (GATC TRUST NO. 96-1)

                          Dated as of August 28, 1996

                                    Between

                           FIRST SECURITY BANK, N.A.,
                     not in its individual capacity except
                        as expressly provided herein but
                          solely as Owner Trustee,
                                                                          Lessor
                                     And

                GENERAL AMERICAN TRANSPORTATION CORPORATION,
                                                                          Lessee

                        COVERED HOPPERS AND TANK CARS





                 CERTAIN OF THE RIGHT, TITLE AND INTEREST OF LESSOR IN AND TO
THIS LEASE, THE EQUIPMENT COVERED HEREBY AND THE RENT DUE AND TO BECOME DUE
HEREUNDER HAVE BEEN ASSIGNED AS COLLATERAL SECURITY TO, AND ARE SUBJECT TO A
SECURITY INTEREST IN FAVOR OF, THE FIRST NATIONAL BANK OF CHICAGO, NOT IN ITS
INDIVIDUAL CAPACITY BUT SOLELY AS INDENTURE TRUSTEE UNDER A TRUST INDENTURE AND
SECURITY AGREEMENT (GATC TRUST NO. 96-1), DATED AS OF AUGUST 28, 1996 BETWEEN
SAID INDENTURE TRUSTEE, AS SECURED PARTY, AND LESSOR, AS DEBTOR.  INFORMATION
CONCERNING SUCH SECURITY INTEREST MAY BE OBTAINED FROM THE INDENTURE TRUSTEE AT
ITS ADDRESS SET FORTH IN SECTION 20 OF THIS LEASE.  SEE SECTION 25.2 FOR
INFORMATION CONCERNING THE RIGHTS OF THE ORIGINAL HOLDER AND HOLDERS OF THE
VARIOUS COUNTERPARTS HEREOF.






<PAGE>   2
              ||                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----


<S>              <C>                                                                                                   <C>
Section 1.       Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

Section 2.       Acceptance and Leasing of Equipment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

Section 3.       Term and Rent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                 Section 3.1      Lease Term  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                 Section 3.2      Basic Rent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                 Section 3.3      Supplemental Rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
                 Section 3.4      Adjustment of Rent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
                 Section 3.5      [RESERVED]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
                 Section 3.6      Manner of Payments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3

Section 4.       Ownership and Marking of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
                 Section 4.1      Retention of Title  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
                 Section 4.2      Duty to Number and Mark Equipment . . . . . . . . . . . . . . . . . . . . . . . . .   3
                 Section 4.3      Prohibition Against Certain Designations  . . . . . . . . . . . . . . . . . . . . .   4

Section 5.       Disclaimer of Warranties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                 Section 5.1      Disclaimer of Warranties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4

Section 6.       Return of Equipment; Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                 Section 6.1      Return; Holdover Rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                 Section 6.2      Condition of Equipment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8

Section 7.       Liens  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9

Section 8.       Maintenance; Possession; Compliance with Laws  . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
                 Section 8.1      Maintenance and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
                 Section 8.2      Possession  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
                 Section 8.3      Sublease  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11

Section 9.       Modifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 Section 9.1      Required Modifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 Section 9.2      Optional Modifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
                 Section 9.3      Removal of Property; Replacements . . . . . . . . . . . . . . . . . . . . . . . . .  12
</TABLE>



                                      
                                      i
<PAGE>   3
                           TABLE OF CONTENTS (cont'd)

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----

<S>              <C>                                                                                                   <C>
Section 10.      Voluntary Termination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                 Section 10.1     Right of Termination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                 Section 10.2     Sale of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
                 Section 10.3     Retention of Equipment by Lessor  . . . . . . . . . . . . . . . . . . . . . . . . .  14
                 Section 10.4     Termination of Lease  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

Section 11.      Loss, Destruction, Requisition, Etc  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                 Section 11.1     Event of Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                 Section 11.2     Replacement or Payment upon Event of Loss . . . . . . . . . . . . . . . . . . . . .  16
                 Section 11.3     Rent Termination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
                 Section 11.4     Disposition of Equipment; Replacement of Unit . . . . . . . . . . . . . . . . . . .  18
                 Section 11.5     Eminent Domain  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19

Section 12.      Insurance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
                 Section 12.1     Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
                 Section 12.2     Physical Damage Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
                 Section 12.3     Public Liability Insurance  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
                 Section 12.4     Certificate of Insurance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
                 Section 12.5     Additional Insurance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22

Section 13.      Reports; Inspection  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
                 Section 13.1     Duty of Lessee to Furnish . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
                 Section 13.2     Lessor's Inspection Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23

Section 14.      Lease Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24

Section 15.      Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
                 Section 15.1     Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
                 Section 15.2     Cumulative Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                 Section 15.3     No Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                 Section 15.4     Notice of Lease Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                 Section 15.5     Lessee's Duty to Furnish Information with Respect to Subleases  . . . . . . . . . .  29
                 Section 15.6     Lessee's Duty to Return Equipment Upon Default  . . . . . . . . . . . . . . . . . .  29
                 Section 15.7     Specific Performance; Lessor Appointed Lessee's Agent . . . . . . . . . . . . . . .  30
</TABLE>




                                      ii
<PAGE>   4
                           TABLE OF CONTENTS (cont'd)

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----

<S>              <C>                                                                                                   <C>
Section 16.      Filings; Further Assurances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
                 Section 16.1     Filings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
                 Section 16.2     Further Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
                 Section 16.3     Other Filings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
                 Section 16.4     Expenses  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31

Section 17.      Lessor's Right to Perform  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31

Section 18.      Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
                 Section 18.1     Assignment by Lessor  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
                 Section 18.2     Assignment by Lessee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
                 Section 18.3     Sublessee's Performance and Rights  . . . . . . . . . . . . . . . . . . . . . . . .  32

Section 19.      Net Lease, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33

Section 20.      Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34

Section 21.      Concerning the Indenture Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                 Section 21.1     Limitation of the Indenture Trustee's Liabilities . . . . . . . . . . . . . . . . .  35
                 Section 21.2     Right, Title and Interest of the Indenture Trustee Under Lease  . . . . . . . . . .  35

Section 22.      Purchase Options; Renewal Options  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                 Section 22.1     Early Purchase Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                 Section 22.2     Election to Retain or Return Equipment at End of Basic or Renewal Term  . . . . . .  37
                 Section 22.3     Purchase Options  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
                 Section 22.4     Renewal Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
                 Section 22.5     Appraisal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 Section 22.6     Stipulated Loss Value and Termination Value During Renewal Term . . . . . . . . . .  40

Section 23.      Limitation of Lessor's Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40

Section 24.      Investment of Security Funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
</TABLE>




                                     iii
<PAGE>   5
                           TABLE OF CONTENTS (cont'd)

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
<S>              <C>                                                                                                  <C>
Section 25.      Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                 Section 25.1     Governing Law; Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                 Section 25.2     Execution in Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                 Section 25.3     Headings and Table of Contents; Section References  . . . . . . . . . . . . . . . .  41
                 Section 25.4     Successors and Assigns  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                 Section 25.5     True Lease  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                 Section 25.6     Amendments and Waivers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 25.7     Survival  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 25.8     Business Days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 25.9     Directly or Indirectly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
                 Section 25.10    Incorporation by Reference  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
</TABLE>


Attachments to Equipment Lease:

Exhibit A       --      Form of Lease Supplement                             A-1
Appendix A      --      Definitions




                                      iv
<PAGE>   6
                           EQUIPMENT LEASE AGREEMENT
                             (GATC TRUST NO. 96-1)


              This Equipment Lease Agreement (GATC Trust No. 96-1), dated as of
August 28, 1996 (the "Lease"), between First Security Bank, N.A., a national
banking association, not in its individual capacity except as expressly
provided herein, but solely as Owner Trustee under the Trust Agreement
("Lessor"), and General American Transportation Corporation, a New York
corporation ("Lessee").

         In consideration of the mutual agreements herein contained and other
good and valuable consideration, receipt of which is hereby acknowledged, the
parties hereto agree as follows:

Section 1.    Definitions.

              Unless the context otherwise requires, all capitalized terms used
herein without definition shall have the respective meanings set forth in
Appendix A hereto for all purposes of this Lease.

Section 2.    Acceptance and Leasing of Equipment.

              Lessor hereby agrees (subject to satisfaction or waiver of the
conditions set forth in Sections 4.1 and 4.3 of the Participation Agreement) to
accept delivery of each Unit from Lessee and to lease such Unit to Lessee
hereunder, and Lessee hereby agrees (subject to satisfaction or waiver of the
conditions set forth in Section 4.4 of the Participation Agreement),
immediately following such acceptance by Lessor, to lease from Lessor hereunder
such Unit.  Such acceptance by Lessor and lease by Lessee to be evidenced by
the execution and delivery by Lessee and Lessor of a Lease Supplement covering
such Unit, all in accordance with Section 2.3(b) of the Participation
Agreement.  Lessee hereby agrees that its execution and delivery of a Lease
Supplement covering any Unit shall, without further act, irrevocably constitute
acceptance by Lessee of such Unit for all purposes of this Lease.

Section 3.    Term and Rent.

              Section 3.1     Lease Term.  The basic term of this Lease (the
"Basic Term") shall commence on the Basic Term Commencement Date and, subject
to earlier termination pursuant to Sections 10, 11, 15 and 22.1 shall expire at
11:59 P.M. (Chicago time) on the Basic Term Expiration Date.  Subject and
pursuant to Section 22.4, Lessee may elect one or more Renewal Terms.

              Section 3.2     Basic Rent.  Lessee hereby agrees to pay Lessor
as Basic Rent for each Unit throughout the Basic Term applicable thereto Basic
Rent in consecutive semi-annual installments payable on each Rent Payment Date.
Each such semi-annual payment of Basic Rent





                                   
<PAGE>   7
shall be in an amount equal to the product of the Equipment Cost for such Unit
multiplied by the Basic Rent percentage for such Unit set forth opposite such
Rent Payment Date on Schedule 3 to the Participation Agreement (as such
Schedule 3 shall be adjusted pursuant to Section 2.6 of the Participation
Agreement).  Basic Rent shall be payable in advance on certain Rent Payment
Dates and in arrears on certain Rent Payment Dates, as specified in Schedule 3
to the Participation Agreement, as so adjusted, such Schedule 3 as so adjusted
from time to time being incorporated herein by reference.  Each installment of
Basic Rent that is indicated as payable in advance will be allocated over the
six-month period beginning on the Rent Payment Date on which such advance
payment is scheduled to be made, and each installment of Basic Rent that is
indicated as payable in arrears will be accrued over the six-month period
ending on the Rent Payment Date on which such arrears payment is scheduled to
be made.

              Anything contained herein or in the Participation Agreement to
the contrary notwithstanding, each installment of Basic Rent (both before and
after any adjustment pursuant to Section 2.6 of the Participation Agreement)
shall be, under any circumstances and in any event, in an amount at least
sufficient for Lessor to pay in full as of the due date of such installment,
any payment of principal of and interest on the Equipment Notes required to be
paid by Lessor pursuant to the Indenture on such due date.

              Section 3.3     Supplemental Rent.  Lessee also agrees to pay to
Lessor, or to whomsoever shall be entitled thereto, any and all Supplemental
Rent, promptly as the same shall become due and owing, or where no due date is
specified, promptly after demand by the Person entitled thereto, and in the
event of any failure on the part of Lessee to pay any Supplemental Rent, Lessor
shall have all rights, powers and remedies provided for herein or by law or
equity or otherwise as in the case of nonpayment of Basic Rent.  Lessee will
also pay, as Supplemental Rent, (i) on demand, to the extent permitted by
applicable law, an amount equal to interest at the Late Rate on any part of any
installment of Basic Rent not paid when due for any period for which the same
shall be overdue and on any payment of Supplemental Rent not paid when due or
demanded, as the case may be, for the period from such due date or demand until
the same shall be paid, (ii) in the case of the termination of this Lease with
respect to any Unit pursuant to Section 10, on the applicable Termination Date,
an amount equal to the Make-Whole Amount, if any, with respect to the principal
amount of each Equipment Note to be prepaid as a result of such termination,
(iii) in the case of the purchase of any Unit pursuant to Section 22.1 or
Section 6.9 of the Participation Agreement, on such date of purchase, an
amount equal to the Make-Whole Amount, if any, with respect to the principal
amount of each Equipment Note to be prepaid as a result of such purchase, (iv)
an amount equal to any other amount payable by Lessor on the Equipment Notes in
excess of the principal and interest payments due thereunder, as and when such
amount shall be due and payable, in accordance with the terms of the Equipment
Notes and the Indenture, and (v) in the case of any refinancing of the
Equipment Notes pursuant to Section 10.2 of the Participation Agreement, on the
Refunding Date, an amount equal to the Make-Whole Amount, if any, with respect
to the aggregate principal amount of the Equipment Notes being prepaid.  All
Supplemental Rent to be paid pursuant to this Section 3.3 shall be payable in
the type of funds and in the manner set forth in Section 3.6.





                                      2
<PAGE>   8
              Section 3.4     Adjustment of Rent.  Lessee and Lessor agree that
the Basic Rent, Stipulated Loss Value and Termination Value percentages and the
Early Purchase Price and Basic Term Purchase Price shall be adjusted to the
extent provided in Section 2.6 of the Participation Agreement, subject in all
cases to the limitation set forth in the second paragraph of Section 3.2.

              Section 3.5     [RESERVED]

              Section 3.6     Manner of Payments.  All Rent (other than
Supplemental Rent payable to Persons other than Lessor, which shall be payable
to such other Persons in accordance with written instructions furnished to
Lessee by such Persons, as otherwise provided in any of the Operative
Agreements or as required by law) shall be paid by Lessee to Lessor at its
office at 79 South Main Street, Salt Lake City, Utah, 84111, Attention:
Corporate Trust Services.  All Rent shall be paid by Lessee in funds consisting
of lawful currency of the United States of America, which shall be immediately
available to the recipient not later than 12:00 noon (New York City time) on
the date of such payment, provided, that so long as the Indenture shall not
have been discharged pursuant to the terms thereof, Lessor hereby directs, and
Lessee agrees, that all Rent (excluding Excepted Property) payable to Lessor
shall be paid directly to the Indenture Trustee at the times and in funds of
the type specified in this Section 3.6 at the office of the Indenture Trustee
at The First National Bank of Chicago, One First National Plaza, Suite 0126,
Chicago, Illinois 60670-0126, ABA No. 071000013, Clearing Account 48115377, for
credit to trust number 19-203567-1, Attn: J. Kinney GATC Trust No. 96-1 or at
such other location in the United States of America as the Indenture Trustee
may otherwise direct.

Section 4.    Ownership and Marking of Equipment.

              Section 4.1     Retention of Title.  Lessor shall and hereby does
retain full legal title to and beneficial ownership of the Equipment
notwithstanding the delivery to and possession and use of the Equipment by
Lessee hereunder or any sublessee under any sublease permitted hereby.

              Section 4.2     Duty to Number and Mark Equipment.  With respect
to the Units to be delivered on the Closing Date, Lessee has caused, and as
soon as practicable after the date on which a Lease Supplement is executed and
delivered in respect of a Replacement Unit pursuant to Section 11.4(b), Lessee
will cause, each Unit to be numbered with its reporting mark shown on the Lease
Supplement dated the date on which such Unit was delivered and covering such
Unit, and will from and after such date keep and maintain, plainly, distinctly,
permanently and conspicuously marked by a plate or stencil printed in
contrasting colors upon each side of each Unit, in letters not less than one
inch in height, a legend substantially as follows:

                   "OWNERSHIP SUBJECT TO A SECURITY AGREEMENT
                  FILED WITH THE SURFACE TRANSPORTATION BOARD"





                                      3
<PAGE>   9
with appropriate changes thereof and additions thereto as from time to time may
be required by law in order to protect Lessor's right, title and interest in
and to such Unit, its rights under this Lease and the rights of the Indenture
Trustee.  Except as provided hereinabove, Lessee will not place any such Units
in operation or exercise any control or dominion over the same until the
required legend shall have been so marked on both sides thereof, and will
replace promptly any such word or words in such legend which may be removed,
defaced, obliterated or destroyed.  Lessee will not change the reporting mark
of any Unit except in accordance with a statement of new reporting marks to be
substituted therefor, which statement shall be delivered by Lessee to Lessor
and, so long as the Indenture shall not have been discharged pursuant to its
terms, to the Indenture Trustee prior to or contemporaneously with such change.
A supplement to this Lease and, if not so discharged, the Indenture, with
respect to such new reporting marks, shall, prior to or contemporaneously with
the substitution of such reporting marks, be filed or recorded in all public
offices where this Lease and the Indenture shall have been filed or recorded
and in such other places, if any, where Lessor and, so long as the Indenture
shall not have been discharged pursuant to its terms, the Indenture Trustee may
reasonably request in order to protect, preserve and maintain its right, title
and interest in the Units.  The costs and expenses of all such supplements,
filings and recordings shall be borne by Lessee.

              Section 4.3     Prohibition Against Certain Designations.  Except
as above provided, Lessee will not allow the name of any Person to be placed on
any Unit as a designation that might reasonably be interpreted as a claim of
ownership; provided, however, that subject to the delivery of the statement of
new reporting marks specified in Section 4.2, Lessee may cause the Equipment to
be lettered with the names or initials or other insignia customarily used by
Lessee or any permitted sublessees or any of their respective Affiliates on
railroad equipment used by it of the same or a similar type for convenience of
identification of the right of Lessee to use the Equipment hereunder or any
permitted sublessee to use the Equipment pursuant to a sublease permitted
hereby.

Section 5.    Disclaimer of Warranties.

              Section 5.1     Disclaimer of Warranties.  Without waiving any
claim Lessee may have against any seller, supplier or manufacturer, LESSEE
ACKNOWLEDGES AND AGREES THAT, (i) EACH UNIT IS OF A SIZE, DESIGN, CAPACITY AND
MANUFACTURE SELECTED BY AND ACCEPTABLE TO LESSEE, (ii) LESSEE IS SATISFIED THAT
EACH UNIT IS SUITABLE FOR ITS PURPOSES AND LESSEE HAS ACCEPTED EACH UNIT, (iii)
NEITHER LESSOR NOR OWNER PARTICIPANT IS A MANUFACTURER OR A DEALER IN PROPERTY
OF SUCH KIND OR HAS INSPECTED THE UNITS PRIOR TO DELIVERY TO AND ACCEPTANCE BY
LESSEE, (iv) EACH UNIT IS LEASED HEREUNDER SUBJECT TO ALL APPLICABLE LAWS AND
GOVERNMENTAL REGULATIONS NOW IN EFFECT OR HEREAFTER ADOPTED, AND (v) LESSOR
LEASES AND LESSEE TAKES EACH UNIT "AS-IS", "WHERE-IS" AND "WITH ALL FAULTS", IN
WHATEVER CONDITION IT MAY BE, AND LESSEE ACKNOWLEDGES THAT NEITHER LESSOR, AS
LESSOR OR IN ITS INDIVIDUAL CAPACITY, NOR





                                      4
<PAGE>   10
OWNER PARTICIPANT MAKES NOR SHALL BE DEEMED TO HAVE MADE, AND EACH EXPRESSLY
DISCLAIMS, ANY AND ALL RIGHTS, CLAIMS, WARRANTIES OR REPRESENTATIONS EITHER
EXPRESS OR IMPLIED, AS TO THE VALUE, CONDITION, FITNESS FOR ANY PARTICULAR
PURPOSE, DESIGN, OPERATION, MERCHANTABILITY THEREOF OR AS TO THE TITLE, OF THE
EQUIPMENT, THE QUALITY OF THE MATERIAL OR WORKMANSHIP THEREOF OR CONFORMITY
THEREOF TO SPECIFICATIONS, FREEDOM FROM PATENT, COPYRIGHT OR TRADEMARK
INFRINGEMENT, THE ABSENCE OF ANY LATENT OR OTHER DEFECT, WHETHER OR NOT
DISCOVERABLE, OR AS TO THE ABSENCE OF ANY OBLIGATIONS BASED ON STRICT LIABILITY
IN TORT OR ANY OTHER EXPRESS OR IMPLIED REPRESENTATION OR WARRANTY WHATSOEVER
WITH RESPECT THERETO AND EACH OF LESSOR AND OWNER PARTICIPANT EXPRESSLY
DISCLAIMS SELECTION OF THE UNITS, except that Lessor, in its individual
capacity, represents and warrants that on the Closing Date, Lessor shall have
received whatever title to the Equipment as was conveyed to Lessor by Lessee
and each Unit will be free of Lessor's Liens attributable to Lessor and
provided that the foregoing disclaimer in clause (v) shall not extend to Owner
Participant's representation and warranty contained in Section 3.6(e) of the
Participation Agreement.  Lessor hereby appoints and constitutes Lessee its
agent and attorney-in-fact during the Lease Term to assert and enforce, from
time to time, in the name and for the account of Lessor and Lessee, as their
interests may appear, but in all cases at the sole cost and expense of Lessee,
whatever claims and rights Lessor may have as owner of the Equipment against
the manufacturers or any prior owner thereof; provided, however, that if at any
time a Lease Event of Default shall have occurred and be continuing, at
Lessor's option, such power of attorney shall terminate, and Lessor may assert
and enforce, at Lessee's sole cost and expense, such claims and rights.  Lessor
shall have no responsibility or liability to Lessee or any other Person with
respect to any of the following:  (i) any liability, loss or damage caused or
alleged to be caused directly or indirectly by any Unit, or by any of the
commodities, items or materials from time to time contained therein, whether or
not permitted by the terms hereof, or by any inadequacy thereof or deficiency
or defect therein or by any other circumstances in connection therewith; (ii)
the use, operation or performance of any Unit or any risks relating thereto;
(iii) any interruption of service, loss of business or anticipated profits or
consequential damages; or (iv) the delivery, operation, servicing, maintenance,
repair, improvement or replacement of any Unit.  Lessee's delivery of a Lease
Supplement shall be conclusive evidence as between Lessee and Lessor that all
Units described therein are in all the foregoing respects satisfactory to
Lessee, and Lessee will not assert any claim of any nature whatsoever against
Lessor based on any of the foregoing matters.





                                      5
<PAGE>   11
Section 6.    Return of Equipment; Storage.

              Section 6.1     Return; Holdover Rent.  (a)  Not less than 120
days prior to the end of the Basic Term, the end of any Fixed Rate Renewal
Term, or the end of any Fair Market Renewal Term, in each case with respect to
any Units which Lessee has elected to return under Section 22.2, Lessee will
provide Lessor with a list of alternative storage locations used for the
storage of rolling stock within the continental United States (excluding
Alaska) sufficient to store the returned Units and the available storage
capacities of such locations.  Not less than 90 days prior to the end of the
Lease Term with respect to any Unit which has not been purchased by Lessee,
Lessor will give Lessee irrevocable notice of its decision either to take
possession of or store such Unit.  If Lessor shall have decided to take
possession of such Unit, the terms of Section 6.1(b) will apply.  If Lessor
shall have decided to store such Unit, the terms of Section 6.1(c) hereof will
apply.

         (b)  If Lessor shall have decided to take possession of such Unit,
Lessee will, at its sole risk and expense, deliver possession of such Unit at
any track location, f.o.b. such location, (i) as may be agreed upon by Lessor
and Lessee in writing or (ii) in the absence of such agreement as Lessor may
reasonably select by written notice to Lessee on or before the 90th day before
the end of the Lease Term; provided, that (x) there shall be no less than 100
Units (or, if less than 100 Units are then subject to the Lease, all Units),
returned to each location (each of which shall be located within the
continental United States, exclusive of Alaska), and (y) Lessor's notice shall
specify the total number and type of Units to be delivered to each location.

         (c)  (i) If Lessor shall have elected to store any Unit upon the
         expiration of the Lease Term with respect thereto, Lessee shall store
         such Unit, free of charge for a period (the "Storage Period")
         beginning, for any particular storage location, on the later of the
         expiration of the Lease Term and the date on which 50% of the total
         number of Units being returned and stored at such location have
         arrived thereat (the "Storage Period Commencement Date") and ending
         not more than 60 days after the later of (A) the Storage Period
         Commencement Date and (B) the date on which such Unit is in compliance
         with the conditions set forth in Section 6.2, and for an additional 60
         days thereafter at the sole risk and expense of Lessor.  On or before
         the 90th day before the end of the Lease Term, Lessor shall provide
         Lessee with written notice designating its choices from among the
         alternative storage locations provided by Lessee pursuant to Section
         6.1(a).  Any storage provided by Lessee during the Storage Period
         (except for such additional 60-day period referred to above) shall be
         at the sole risk and expense of Lessee, and Lessee shall maintain the
         insurance required by Section 12.1 with respect to all stored Units.
         During the Storage Period, Lessee will permit Lessor or any Persons
         designated by it, including the authorized representative or
         representatives of any prospective purchaser or user of such Unit, to
         restencil the marks on such Unit and to inspect the same during
         Lessee's normal business hours upon at least three Business Days'
         prior written or telephonic notice; provided, however, that such
         inspection and restenciling shall not interfere with the normal
         conduct of Lessee's business; and





                                      6
<PAGE>   12
         provided, further, that (x) such inspection and restenciling shall be
         at such Person's own risk, (y) Lessee shall be protected against any
         loss or damage incurred by it in connection with any such inspection
         or restenciling by such Person through indemnification, insurance or
         other means reasonably satisfactory to Lessee and (z) Lessee (except
         in the case of Lessee's gross negligence or wilful misconduct) shall
         not be liable for any injury to, or the death of, any person
         exercising, either on behalf of Lessor or any prospective purchaser or
         user, the rights of inspection and restenciling granted pursuant
         hereto.  Lessee shall not be required to store the Equipment after the
         Storage Period.  If Lessee does store any Unit after the expiration of
         the Storage Period, such storage shall be at the sole risk and expense
         of Lessor.

              (ii)      Upon the request and direction of Lessor (and at
         Lessor's sole risk and expense), on not more than one occasion with
         respect to each stored Unit and upon not less than 30 days' prior
         written notice from Lessor to Lessee, Lessee will, on or before the
         expiration of the Storage Period, transport such Units to any railroad
         interchange point or points within the continental United States
         (except Alaska) with a minimum of 100 Units (or, if less than 100
         Units are then subject to the Lease, all Units) per interchange point
         on any railroad lines or to any connecting carrier for shipment,
         whereupon Lessee shall have no further liability or obligation with
         respect to such Units.

              (iii)     Upon receipt of Lessor's written notice designating its
         choices from among the alternative storage locations provided by
         Lessee under Section 6.1(a), Lessee shall have the option to store
         such Units at such storage track locations anywhere within the
         continental United States as it shall choose (provided that there
         shall be no less than 100 Units (or, if less than 100 Units are then
         subject to the Lease, all Units) stored at each such location).  Upon
         receipt of such notice, Lessee will promptly give notice to Lessor of
         the locations at which Lessee will store such Units.  If Lessee shall
         exercise such option, Lessee shall on or before the expiration of the
         Storage Period transport the Equipment to any track location within
         the continental United States (except Alaska) with a minimum of 100
         Units (or, if less than 100 Units are then subject to the Lease, all
         Units) at each location, designated by Lessor upon not less than 30
         days' prior written notice.  The movement of any Unit from such Unit's
         location as designated by Lessee pursuant to this Section 6.1(c)(iii)
         to a location thereafter designated by Lessor in accordance with the
         foregoing sentence will be at the risk and expense of Lessor.  During
         any Storage Period, Lessee shall store the Equipment in such manner as
         Lessee normally stores similar units of railroad equipment owned or
         leased by it.

              (d)       Upon the later of (i) expiration of the Lease Term with
respect to such Unit, (ii) tender of such Unit at the location determined in
accordance with Section 6.1(b) or, as applicable, the tender of such Unit for
storage in accordance with Section 6.1(c), and (iii) compliance by such Unit
with Section 6.2, this Lease and the obligation to pay Basic Rent for such Unit
accruing subsequent to the expiration of the Lease Term with respect to such
Unit shall terminate.





                                      7
<PAGE>   13
              (e)       So long as no Lease Event of Default has occurred and
is continuing, all amounts earned in respect of a Unit after the date of
expiration of the Lease Term with respect to such Unit and prior to the return
of such Unit hereunder shall belong to Lessee, and if received by Lessor, shall
be promptly turned over to Lessee.  In the event any Unit is not returned to
Lessor in accordance with the provisions of Section 6.1(b) on the last day of
the Lease Term with respect thereto, or if requested by Lessor pursuant to
Section 6.1(c), delivered and stored on such last day of the Lease Term, and,
in either case, in the condition specified in Section 6.2, Lessee shall pay to
Lessor for each such day from the expiration of the Lease Term with respect to
such Unit until the date on which such Unit is returned to Lessor in accordance
with the provisions of Section 6.1(b) and in the condition specified in Section
6.2, an amount equal to the daily equivalent of the average Basic Rent for the
Basic Term or the Renewal Term as applicable to such Unit.  If such Unit is not
returned to Lessor in accordance with the provisions of Section 6.1(b) and in
the condition specified in Section 6.2 on or prior to the 180th day after the
expiration of the Lease Term with respect to such Unit, Lessor shall have the
right to require Lessee to purchase such Unit for a purchase price equal to the
Stipulated Loss Value for such Unit as of the 181st day after the expiration of
such Lease Term; provided that if more than 25 Units have not been returned on
or prior to the expiration of such Lease Term, the purchase price for such Unit
shall be the higher of (x) the Fair Market Sales Value and (y) the Stipulated
Loss Value of such Unit as of the 181st day after the expiration of such Lease
Term; provided further that, during the holdover period described in this
sentence and the immediately preceding sentence, Lessee shall use its best
efforts to secure the return of the Equipment as required under this Section 6
in the condition specified in Section 6.2.  Nothing herein shall be in
abrogation of Lessor's right to have such Unit returned to it for possession or
storage.  Payment of the purchase price, together with all other amounts due
and owing by Lessee under the Operative Agreements, shall be made at the place
of payment specified in Section 3.6 hereof in immediately available funds
against delivery of a Bill of Sale transferring and assigning to Lessee all
right, title and interest of Lessor in and to such Units on an "as-is"
"where-is" basis and containing a warranty against Lessor's Liens.  Lessor
shall not be required to make any other representation or warranty as to the
condition of such Units or any other matters except as to the absence of any
Lessor's Liens, and may specifically disclaim any such representations or
warranties.

              Section 6.2     Condition of Equipment.  Each Unit when returned
to Lessor pursuant to Section 6.1 shall be (i) capable of performing the
functions for which it was designed, with all loading and unloading components
operating in good working order with allowance for normal wear and tear, (ii)
suitable for continued commercial use in the commodity last carried immediately
prior to such return, (iii) suitable for use in interchange by a new owner in
the operating lease business in accordance with then applicable Federal
regulations, the Field Manual of the AAR and FRA rules and regulations, (iv) in
the condition required by Section 8.1, (v) in conformance with any requirement
pertaining to warranties of the manufacturer of the Units during the warranty
period, (vi) empty, (vii) steam cleaned or otherwise cleaned in a comparable
commercially acceptable manner, and (viii) free and clear of all Liens except
Lessor's Liens and Permitted Liens of the type described in clause (iii) of the
definition of Permitted Liens to the





                                      8
<PAGE>   14
extent arising as a result of a fleet wide action which includes such Unit.
All logs, records, books and other materials relating to the maintenance of
such Unit shall, upon Lessor's request, be delivered to Lessor or its designee
upon the return of such Unit.  Lessor shall have the right to inspect any Unit
that is returned pursuant to Section 6.1 to ensure that such Unit is in
compliance with the conditions set forth in this Section 6.2, at Lessor's sole
cost, expense and risk (including, without limitation, the risk of personal
injury or death), by its authorized representatives, during Lessee's normal
business hours and upon reasonable prior notice to Lessee; provided, however,
that Lessee shall not be liable for any injury to, or the death of, any Person
exercising, on behalf of Lessor, the rights of inspection granted under this
Section 6.2 unless caused by Lessee's gross negligence or wilful misconduct;
and further provided, that if such Unit is not in compliance with the
conditions set forth in this Section 6.2 then Lessee will (i) promptly take
such steps as are necessary to bring such Unit in compliance with the
conditions set forth in this Section 6.2 and (ii) pay the reasonable cost and
expense of any reinspection of such Unit conducted by Lessor required because
of such non-compliance with Section 6.2.  No inspection pursuant to this
Section 6.2 shall interfere with the normal conduct of Lessee's business or the
normal conduct of any sublessee's business, and Lessee shall not be required to
undertake or incur any additional liabilities in connection therewith.  A Unit
shall not be deemed to have been returned to Lessor for purposes of this Lease
unless and until it is in compliance with the conditions set forth in this
Section 6.2.

Section 7.    Liens.

              Lessee will not directly or indirectly create, incur, assume,
permit or suffer to exist any Lien on or with respect to any Unit or Lessee's
leasehold interest therein under this Lease, except Permitted Liens, Lessor's
Liens and Liens described in Section 6.4(a) and 6.4(b) of the Participation
Agreement.  Lessee shall promptly, at its own expense, take such action or
cause such action to be taken as may be necessary to duly discharge (by bonding
or otherwise) any such Lien not excepted above if the same shall arise at any
time.

Section 8.    Maintenance; Possession; Compliance with Laws.

              Section 8.1     Maintenance and Operation.  (a) Lessee, at its
own cost and expense, shall maintain, repair and keep each Unit, (i) according
to prudent industry practice, in good working order, and in good physical
condition for railcars of a similar age and usage, normal wear and tear
excepted, (ii) in a manner consistent with maintenance practices used by Lessee
in respect of equipment owned or leased by Lessee similar in type to such Unit,
(iii) in accordance in all material respects with all manufacturer's warranties
in effect and in accordance with all applicable provisions, if any, of
insurance policies required to be maintained pursuant to Section 12, and (iv)
in compliance in all material respects with any applicable laws and
regulations, including, without limitation, the Field Manual of the AAR, FRA
rules and regulations and Interchange Rules as they apply to the maintenance
and operation of the Equipment in interchange regardless of upon whom such
applicable laws and regulations are nominally imposed; provided, however, that
Lessee may, in good faith and by appropriate





                                      9
<PAGE>   15
proceedings diligently conducted, contest the validity or application of any
such standard, rule or regulation in any reasonable manner which does not
materially interfere with the use, possession, operation or return of any of
the Units or materially adversely affect the rights or interests of Lessor and
the Indenture Trustee in the Equipment or hereunder or otherwise expose Lessor,
the Indenture Trustee or any Participant to criminal sanctions or release
Lessee from the obligation to return the Equipment in compliance with the
provisions of Section 6.2.  Lessee shall provide Lessor and the Indenture
Trustee with notice of any contest of the type described in the preceding
sentence in detail sufficient to enable Lessor and the Indenture Trustee to
ascertain whether such contest may have an effect of the type described in the
preceding sentence.  In no event shall Lessee discriminate as to the use or
maintenance of any Unit (including the periodicity of maintenance or
recordkeeping in respect of such Unit) as compared to equipment of a similar
nature which Lessee owns or leases.  Lessee will maintain all records, logs and
other materials required by relevant industry standards or any governmental
authority having jurisdiction over the Units required to be maintained in
respect of any Unit, all as if Lessee were the owner of such Units, regardless
of whether any such requirements, by their terms, are nominally imposed on
Lessee, Lessor or Owner Participant.

              (b)       Without the written waiver or consent of Lessor (which
waiver or consent will not be unreasonably withheld), Lessee shall not or
expressly permit any sublessee to change a DOT classification (as provided for
in 49 C.F.R. Part 179 or any successor thereto), or expressly permit any
sublessee to operate any Unit under a different DOT classification, from that
classification in effect for such Unit on the Closing Date, except for any
change in tank test pressure rating provided such change does not increase the
pressure rating of the Unit above the tank test pressure to which the Unit was
manufactured; provided however, that in the event Lessor shall not have
provided Lessee with a written waiver or consent to such a reclassification or
operation of any Unit within 10 Business Days after receipt of Lessee's written
request therefor (or Lessor expressly rejects such a request by Lessee), Lessee
may replace such Unit in accordance with and subject to the provisions of
Section 11.2(i), 11.3 and 11.4.

              Section 8.2     Possession.  Lessee shall be entitled to the
possession of the Equipment and to the use of the Equipment by it or any
Affiliate, in the United States and, subject to the remaining provisions of
this Section 8.2 and Section 8.3, Canada and Mexico, only in the manner for
which it was designed and intended and so as to subject it only to ordinary
wear and tear.  In no event shall Lessee make use of any Equipment in any
jurisdiction not included in the insurance coverage required by Section 12.
The Equipment shall be used primarily on domestic routes in the United States,
and in no event shall more than twenty-five percent (25%) of the Units (as
determined by mileage records) be assigned outside the United States at the
same time until after December 31, 1998 [AMSOUTH: DURING THE "TAX ATTRIBUTE
PERIOD" (AS DEFINED IN THE TAX INDEMNITY AGREEMENT)].  Thereafter, no more than
forty-nine percent (49%) of the Units (as determined by mileage records) shall
be used outside the continental United States (exclusive of Alaska) at the same
time.  Notwithstanding the foregoing, no more than 15% of the Units shall be
used in Mexico so long as Mexican law does not afford protections to the Lessor
comparable to U.S. law and unless Lessee shall first have taken all actions
necessary so





                                     10
<PAGE>   16
as to protect the right, title and interest of Lessor and the Indenture Trustee
in the Equipment in Mexico pursuant to Section 16.3 and shall have furnished
Lessor and the Indenture Trustee with an opinion of Mexican counsel, reasonably
satisfactory to such parties, to the effect that all such filings and
recordings of the related Operative Agreements have been taken and effected
under such Mexican law.  Nothing in this Section 8.2 shall be deemed to
constitute permission by Lessor to any Person that acquires possession of any
Unit to take any action inconsistent with the terms and provisions of this
Lease and any of the other Operative Agreements.  The rights of any Person that
acquires possession of any Unit pursuant to this Section 8.2 shall be subject
and subordinate to the rights of Lessor hereunder.

              Section 8.3     Sublease.  Provided Lessor shall not have
declared the Lease to be in default (or the Lease shall be deemed to have been
declared in default) pursuant to Section 15.1 hereof, Lessee shall be entitled,
without the prior approval of Lessor, to enter into a sublease for any Unit or
Units (pursuant to a car service contract or otherwise) to, or to grant
permission for the use thereof under car contracts by, (i) a railroad company
or companies incorporated under the laws of the United States of America or any
state thereof or the District of Columbia, Canada or any province thereof, or
Mexico or any state thereof, upon lines of railroad owned or operated by such
railroad company or companies or over which such railroad company or companies
have trackage rights or rights for operation of their trains, and upon
connecting and other carriers in the usual interchange of traffic or (ii)
responsible companies (i.e., a company with which Lessee would do business in
the ordinary course of Lessee's business with respect to railcars which it
owns, leases or manages) other than railroad companies for use in their
business (leases to such sublessees being herein referred to as "Permitted
Subleases") provided, however, that Lessee shall not sublease more than 15% of
the Units to a sublessee formed under the laws of Mexico or any state thereof.
All subleases shall include appropriate provisions so that such subleases, (i)
shall in all events be subject and subordinate to this Lease and the rights and
interests of Lessor and its respective successors and assigns hereunder and
shall confirm such subordination by a provision substantially in the form
currently contained in Lessee's standard car service contract delivered to
Lessor and the Indenture Trustee prior to the Closing Date, or otherwise as
satisfactory to Lessor and the Indenture Trustee, (ii) shall not be for a term
which extends beyond the Basic Term and any agreed upon Renewal Term, and (iii)
shall not include any term or provision which could reasonably be expected to
result in material adverse consequences to Lessor, Owner Participant or the
Indenture Trustee.  In the event Lessee desires to sublease one or more Units
for a term which extends beyond the Basic Term or any agreed upon Renewal Term,
Lessee will have the option to replace such Unit on or prior to the expiration
of the Basic Term or any Renewal Term, with another Unit in accordance with and
subject to the provisions of Section 11.2(i), 11.3 and 11.4.  Except in
connection with an assignment pursuant to a transaction permitted by Section
6.8 of the Participation Agreement, no sublease entered into by Lessee
hereunder shall relieve Lessee of any liability or obligation hereunder, which
shall be and remain those of a principal and not a surety.  Nothing in this
Section 8.3 shall be deemed to constitute permission to any Person in
possession of any Unit pursuant to any such sublease to take any action
inconsistent with the terms and provisions of this Lease or any of the other
Operative Agreements.





                                     11
<PAGE>   17
Section 9.    Modifications.

              Section 9.1     Required Modifications.  In the event the AAR,
the United States Department of Transportation, or any other United States or
state governmental agency or any other applicable law requires that any Unit be
altered, replaced or modified (a "Required Modification"), Lessee agrees to
make such Required Modification at its own expense; provided, however, that
Lessee may, in good faith and by appropriate proceedings diligently conducted,
contest the validity or application of any such law, regulation, requirement or
rule in any reasonable manner which does not materially interfere with the use,
possession, operation or return of any Unit or materially adversely affect the
rights or interests of Lessor and the Indenture Trustee in the Equipment or
hereunder or otherwise expose Lessor, the Indenture Trustee or any Participant
to criminal sanctions or relieve Lessee of the obligation to return the
Equipment in compliance with the provisions of Section 6.2.  Title to any
Required Modification shall immediately vest in Lessor.  Notwithstanding
anything herein to the contrary, if Lessee determines in good faith that any
Required Modification to a Unit would be economically impractical, in lieu of
making the Required Modification as provided above, Lessee may provide written
notice of such determination to Lessor and treat such Unit as if an Event of
Loss had occurred as of the date of such written notice with respect to such
Unit and in such event the provisions of Sections 11.2, 11.3 and 11.4 shall
apply with respect to such Unit; provided that Lessee shall not discriminate
against such Unit in making such determination of economic impracticality as
compared with other equipment of the same type as such Unit which is owned or
leased by Lessee.

              Section 9.2     Optional Modifications.  Lessee at any time may
in its discretion and at its own cost and expense modify, alter or improve any
Unit in a manner which is not required by Section 9.1 (a "Modification");
provided that no Modification shall diminish the fair market value, utility,
capacity, or remaining economic useful life of such Unit below the fair market
value, utility, capacity, or remaining economic useful life thereof immediately
prior to such Modification, in any non de minimus respect, assuming such Unit
was then in the condition required to be maintained by the terms of this Lease
or cause such Unit to become Limited Use Property.  Title to any Non-Severable
Modification shall be immediately vested in Lessor.  Title to any Severable
Modification (other than Required Modifications) shall remain with Lessee.  If
Lessee shall at its cost cause such Severable Modifications (other than
Required Modifications) to be made to any Unit, Lessor shall have the right,
upon 90 days prior written notice in the case of a return other than pursuant
to Section 15.6, prior to the return of such Unit to Lessor hereunder, to
purchase such Severable Modifications (other than Severable Modifications
consisting of proprietary or communications equipment) at their then Fair
Market Sales Value (taking into account their actual condition).  If Lessor
does not so elect to purchase such Severable Modifications, Lessee may remove
such Severable Modifications at Lessee's cost and expense, and if requested
(which request shall be made by not less than 90 days prior written notice in
the case of a return other than pursuant to Section 15.6) by Lessor will so
remove such Severable Modifications at Lessee's cost and expense, and Lessee
shall, at its expense, repair





                                     12
<PAGE>   18
any damage resulting from the removal of any such Severable Modifications in a
manner consistent with Section 8.1.

         Section 9.3    Removal of Property; Replacements.  Lessee may, in the
ordinary course of maintenance or repair of any Unit, remove any item of
property constituting a part of such Unit, and unless the removal of such item
is required by Section 9.1 hereof, Lessee shall replace such item as promptly
as practicable by an item of property that is free and clear of all Liens
(other than Permitted Liens) and in as good operating condition as, and with a
fair market value, utility, capacity and remaining economic useful life at
least equal to, the item of property being replaced, assuming that such
replaced item was in the condition required to be maintained by the terms of
this Lease.  Any item of property removed from such Unit in the ordinary course
of maintenance and repair as provided in the preceding sentence shall remain
the property of Lessor free and clear of all rights of Lessee until replaced in
accordance with the terms of such sentence, but shall then, without further
act, become the property of Lessee.  Any such property replaced in the ordinary
course of maintenance and repair shall, without further act, become the
property of Lessor and be deemed part of such Unit for all purposes hereof.

Section 10.   Voluntary Termination.

              Section 10.1    Right of Termination.  So long as no Lease
Default pursuant to Sections 14(a), 14(b), 14(g) or 14(h) or Lease Event of
Default shall have occurred and be continuing, Lessee shall have the right, at
its option at any time or from time to time during the Basic Term on or after
the seventh anniversary of the Basic Term Commencement Date to terminate the
Lease Term with respect to any or all of the Units (provided that, if such
termination is for less than all Units in a Functional Group, Lessee shall
exercise such termination with respect to at least 25 Units, no fewer than 25
Units shall remain in such Functional Group as a result of such termination and
the determination as to which Units are subject to termination shall be made by
Lessee on a random or other basis (in each case reasonably acceptable to
Lessor) without discrimination based on maintenance status, operating condition
of the Units in question or otherwise) (the "Terminated Units") if Lessee
determines in good faith (as evidenced by a certified copy of a resolution
adopted by Lessee's Board of Directors and a certificate executed by the Chief
Financial Officer of Lessee) that such Units have become obsolete or surplus to
Lessee's requirements by delivering at least 120 days' prior notice to Lessor
and the Indenture Trustee (i) specifying a proposed date of termination for
such Units (the "Termination Date"), which date shall, except as provided in
the last sentence of Section 10.3, be a Rent Payment Date, any such termination
to be effective on the Termination Date upon Lessee's compliance with this
Section 10, and (ii) if some but less than all of the Units in a Functional
Group are designated as Terminated Units, describing the nondiscriminatory
manner in which Lessee proposes to determine which Units in that Functional
Group are to be Terminated Units.  Except as expressly provided herein, there
will be no conditions to Lessee's right to terminate this Lease with respect to
the Terminated Units pursuant to this Section 10.1.  So long as (a) Lessor
shall not have given Lessee a notice of election to retain the Terminated Units
in accordance with Section 10.3, or (b) notice of prepayment of the





                                     13
<PAGE>   19
Equipment Notes shall not have been given pursuant to Section 2.10 of the
Indenture, Lessee may withdraw the termination notice referred to above at any
time prior to the Termination Date, whereupon this Lease shall continue in full
force and effect; provided that Lessee (i) may not exercise its right to
withdraw such a termination notice more than once annually or more than four
times during the Basic Term, and (ii) may not withdraw any termination notice
with respect to any Terminated Units after receipt by Lessee of a bid equal to
or greater than Termination Value with respect to such Terminated Units or
later than sixty (60) days prior to the scheduled Termination Date.  Lessee
agrees that if it withdraws a termination notice it will reimburse Lessor,
Owner Participant and the Indenture Trustee for all reasonable out-of-pocket
costs and expenses (including reasonable legal fees and expenses) incurred by
any thereof in connection therewith.

              Section 10.2    Sale of Equipment.  During the period from the
date of such notice given pursuant to Section 10.1 to the Termination Date,
Lessee, as agent for Lessor and, except as provided in Section 10.3, at
Lessee's sole cost and expense, shall use reasonable best efforts to obtain
bids from Persons other than Lessee or Affiliates thereof for the cash purchase
of the Terminated Units, and Lessee shall promptly, and in any event at least
five Business Days prior to the proposed date of sale, certify to Lessor in
writing the amount and terms of each such bid, the proposed date of such sale
and the name and address of the party submitting such bid.  Unless Lessor shall
have elected to retain the Terminated Units in accordance with Section 10.3, on
the Termination Date:  (i) Lessee shall, subject to the prior or concurrent
receipt (x) by Lessor of all amounts owing to Lessor pursuant to the next
sentence, and (y) by the Persons entitled thereto of all unpaid Supplemental
Rent due on or before the Termination Date, deliver the Terminated Units
(excluding any optional Severable Modifications removed by Lessee pursuant to
Section 9.2) to the bidder (which shall not be Lessee or any Affiliate
thereof), if any, which shall have submitted the highest cash bid prior to such
date (or to such other bidder as Lessee and Lessor shall agree) and (ii) Lessor
shall, without recourse or warranty (except as to the absence of any Lessor's
Lien) simultaneously therewith transfer all of its right, title and interest in
and to the Terminated Units to such bidder.  The net proceeds of sale realized
at such sale shall be paid to and retained by Lessor and, in addition, on the
Termination Date, Lessee shall pay to Lessor, (A) all unpaid Rent with respect
to such Terminated Units due and payable on or prior to the Termination Date
(exclusive of any in advance Basic Rent due on such date), (B) the excess, if
any, of (1) the Termination Value for the Terminated Units computed as of the
Termination Date, over (2) the net cash sales proceeds (after the deduction of
all reasonable costs and expenses of Lessor and Owner Participant in connection
with such sale) of the Terminated Units, and (C) an amount equal to the Make-
Whole Amount, if any, in respect of the principal amount of the Equipment Notes
to be prepaid in accordance with Section 2.10(a) of the Indenture.  If no sale
shall have occurred, whether as a result of Lessee's failure to pay all of the
amounts hereinabove required or otherwise, this Lease shall continue in full
force and effect with respect to such Units and Lessee agrees to reimburse
Lessor, Owner Participant and the Indenture Trustee for all reasonable costs
and expenses (including reasonable legal fees and expenses) incurred by any
thereof in connection therewith; provided that if such sale shall not have
occurred solely because of Lessee's failure to pay the amounts hereinabove
required,





                                     14
<PAGE>   20
Lessee shall have no further right to terminate this Lease with respect to such
Units.  Lessee, in acting as agent for Lessor, shall have no liability to
Lessor for failure to obtain the best price, shall act in its sole discretion
and shall be under no duty to solicit bids publicly or in any particular
market.  Lessee's sole interest in acting as agent shall be to use its
reasonable best efforts to sell the Units at the highest price then obtainable
consistent with the terms of this Lease.

              Section 10.3    Retention of Equipment by Lessor.
Notwithstanding the provisions of Sections 10.1 and 10.2, Lessor may
irrevocably elect by written notice to Lessee, no later than 60 days after
receipt of Lessee's notice of termination, not to sell the Terminated Units on
the Termination Date, whereupon Lessee shall (i) deliver the Terminated Units
to Lessor in the same manner and condition as if delivery were made to Lessor
pursuant to Section 6.1(b) and Section 6.2, treating the Termination Date as
the termination date of the Lease Term with respect to the Terminated Units,
and (ii) pay to Lessor, or to the Persons entitled thereto, all Basic Rent and
all Supplemental Rent due and owing on the Termination Date and unpaid
(exclusive of any in advance Basic Rent due on such date but inclusive of any
Supplemental Rent measured by the Make-Whole Amount).  If Lessor elects not to
sell the Terminated Units as provided in this Section 10.3, then Lessor shall
pay, or cause to be paid, to the Indenture Trustee in funds of the type and in
an amount equal to the outstanding principal amount of the Equipment Notes
issued in respect of such Terminated Units and all accrued and unpaid interest
to the date of prepayment of such Equipment Notes on such Termination Date and
an amount equal to the Make-Whole Amount, if any, in respect of the principal
amount of the Equipment Notes to be prepaid without in any manner relieving the
Lessee of its obligation to pay any such amount pursuant to the preceding
sentence; provided that unless Lessor shall have paid all such amounts to the
Indenture Trustee on the Termination Date, this Lease shall continue in full
force and effect.  If Lessor shall fail to pay the amounts required pursuant to
this Section 10.3 and as a result thereof this Lease shall not be terminated
with respect to the Terminated Units on a proposed Termination Date, Lessor
shall (x) thereafter no longer be entitled to exercise its election to retain
such Terminated Units, and (y) reimburse Lessee for any reasonable
out-of-pocket expenses (including reasonable legal fees and expenses) incurred
by it in attempting to sell the Terminated Units pursuant to Section 10.2
immediately prior to Lessor's exercise of such preemptive election, and Lessee
may at its option at any time thereafter prior to the immediately following
Rent Payment Date submit a new termination notice pursuant to Section 10.1 with
respect to such Terminated Units specifying a proposed Termination Date
occurring on a Determination Date occurring not earlier than 25 days from the
date of such notice.

              Section 10.4    Termination of Lease.  In the event of either (x)
any such sale and receipt by Lessor and the Indenture Trustee of all of the
amounts provided in Section 10.2 or (y) retention of the Equipment and full
performance by Lessor of its payment obligations in compliance with Section
10.3, and upon compliance by Lessee with the other provisions of this Section
10, the obligation of Lessee to pay Basic Rent hereunder for such Terminated
Units shall cease and the Lease Term for the Terminated Units shall end.





                                     15
<PAGE>   21
Section 11.   Loss, Destruction, Requisition, Etc.

              Section 11.1    Event of Loss.  In the event that any Unit (i)
shall suffer damage or contamination which, in Lessee's reasonable judgment (as
evidenced by an Officers' Certificate to such effect), makes repair uneconomic
or renders such Unit unfit for commercial use, (ii) shall suffer destruction,
or shall suffer theft or disappearance (after reasonable efforts by Lessee to
locate the same) for a period exceeding 12 months (or, if earlier, the end of
the Basic Term or Renewal Term then in effect), (iii) shall be permanently
returned to the manufacturer pursuant to any patent indemnity provisions, (iv)
shall have title thereto taken or appropriated by any governmental authority,
agency or instrumentality under the power of eminent domain or otherwise, (v)
shall be taken or requisitioned for use by any governmental authority or any
agency or instrumentality thereof under the power of eminent domain or
otherwise, and such taking or requisition is for a period that exceeds the
remaining Basic Term or any Renewal Term then in effect (unless such taking or
requisition is by any governmental authority, agency or instrumentality other
than the United States or Canada in which case such period shall be the lesser
of the period as aforesaid or 365 days) (any such occurrence being hereinafter
called an "Event of Loss"), Lessee, in accordance with the terms of Section
11.2, shall promptly and fully inform Lessor and the Indenture Trustee of such
Event of Loss.

              Section 11.2    Replacement or Payment upon Event of Loss.  Upon
the occurrence of (a) an Event of Loss or the deemed occurrence of an Event of
Loss pursuant to Section 9.1 or (b) an election to replace pursuant to Section
8.1(b) or 8.3, with respect to any Unit, Lessee shall as soon as reasonably
practical and in any event within 60 days after a Responsible Officer of Lessee
shall have actual knowledge of such occurrence or election give Lessor and the
Indenture Trustee notice of such occurrence of such Event of Loss or election
to replace (which notice shall identify the Unit involved) and then within the
60-day period following such notice give Lessor and the Indenture Trustee
notice as to which of the following options Lessee shall elect to perform (it
being agreed that if Lessee shall fail to give notice of such election, Lessee
shall be deemed to have elected to perform the option set forth in 11.2(ii)):

              (i)       Upon Lessee's election to perform under this clause
         (i), as promptly as practicable following such election, and in any
         event on or before the 60th day following the date of notice of such
         Event of Loss or deemed Event of Loss pursuant to Section 9.1, or the
         date Lessee exercises an option to replace pursuant to Section 8.1(b)
         or Section 8.3, as the case may be, Lessee shall comply with Section
         11.4(b) and shall convey or cause to be conveyed to Lessor a
         Replacement Unit to be leased to Lessee hereunder, such Replacement
         Unit to be of the same car type of the same or newer model year (or
         otherwise approved by Lessor, which approval shall not be unreasonably
         withheld), and free and clear of all Liens (other than Permitted Liens
         of the type described in clause (ii) with respect to sublessees, and
         in clauses (iii), (iv), (vi) and (vii) of the definition thereof) and
         to have a fair market value, utility, capacity, remaining economic
         useful life and condition at least equal to the Unit so replaced
         (assuming such Unit was in the condition required to be maintained by
         the terms of this Lease); provided





                                     16
<PAGE>   22
         that, if, at the time of such replacement, only railcars (x) of a
         newer model year or (y) with a greater fair market value (or a greater
         Fair Market Sales Value in the situation set forth in the next
         proviso) than the replaced Units are available as Replacement Units,
         Lessee shall convey such Replacement Unit to Lessor as set forth above
         but Lessee may, at a later date, replace such Replacement Units with
         other Units that are closer in fair market value (or Fair Market Sales
         Value in the situation set forth in the next proviso) to the original
         replaced Units so long as such replacement does not result in any
         additional unindemnified tax liability; provided further that, if such
         replacement is performed (a) pursuant to Section 8.3 after the 180th
         day prior to the end of the Lease Term of such Units or (b) with
         respect to 15 or more Units, each of such Replacement Units must have,
         in addition to the requirements set forth above, a Fair Market Sales
         Value at least equal to the Unit so replaced (assuming such Unit was
         in the condition required to be maintained by the terms of this
         Lease); provided further that, if Lessee shall elect the option under
         this clause (i) within such period but shall fail to perform its
         obligation to effect such replacement under this paragraph (i) within
         the 60-day period hereinabove provided for, then (except in the case
         of a failure to perform an election to replace pursuant to Section
         8.1(b) or Section 8.3) at the end of such 60-day period Lessee shall
         immediately give Lessor and the Indenture Trustee notice of such
         failure and specify that Lessee shall pay to Lessor on the next
         succeeding Rent Payment Date that is at least 25 days after the end of
         such 60-day period, or in the case of Supplemental Rent, to the Person
         entitled thereto, the amounts specified in paragraph (ii) below as of
         such next succeeding Rent Payment Date, and Lessee shall pay such
         amounts on such Rent Payment Date; provided further that Lessee shall
         have no right to elect replacement under this clause (i) if at the
         time of the notice of the Event of Loss under Section 11.2 above a
         Lease Default pursuant to Sections 14(a), 14(b), 14(g) or 14(h) or
         Lease Event of Default shall have occurred and be continuing; or

              (ii)      on the Rent Payment Date which is not less than 25 days
         following the date of notice of Lessee's election to perform under
         this clause (ii), Lessee shall pay or cause to be paid to Lessor (or
         in the case of Supplemental Rent, to the Persons entitled thereto) in
         funds of the type specified in Section 3.6, (a) an amount equal to the
         Stipulated Loss Value of each such Unit suffering an Event of Loss or
         deemed Event of Loss determined as of such Rent Payment Date, (b) all
         Basic Rent payable on such date in respect of such Unit (exclusive of
         any in advance Basic Rent due on such date), and (c) all other Rent
         then due and payable hereunder, it being understood that until such
         Stipulated Loss Value and other sums are paid, there shall be no
         abatement or reduction of Basic Rent;

provided that in the event at any time a Responsible Officer of Lessee shall
have actual knowledge of the occurrence or deemed occurrence of an Event of
Loss with respect to an aggregate of 15 or more Units as to which Lessee would
otherwise be obligated to make payment pursuant to the second proviso to
paragraph (i) above or pursuant to paragraph (ii) above on a Rent Payment Date,
then Lessee shall thereupon give Lessor and the Indenture Trustee notice that
in lieu of making payments with respect to such Units as otherwise above





                                     17
<PAGE>   23
provided on a Rent Payment Date, Lessee will make a payment with respect to
such Units on the next succeeding Determination Date which is at least 25 days
after such notice, and on such Determination Date Lessee shall pay, in lieu of
the amounts otherwise required to be paid in respect of such Units on a Rent
Payment Date as provided above, (a) an amount equal to the Stipulated Loss
Value of such Units determined as of such Determination Date, (b) if such
Determination Date is also a Rent Payment Date, all Basic Rent payable on such
date in respect of such Units (exclusive of any in advance Basic Rent due on
such date) and (c) all other Rent then due and payable hereunder, it being
understood that until such Stipulated Loss Value and other sums are paid, there
shall be no abatement or reduction of Basic Rent.

              Section 11.3    Rent Termination.  Upon the replacement of any
Unit or Units in compliance with Sections 11.2(i) and 11.4(b) (but only as to
replaced Units and not any Replacement Unit) or upon the payment of all sums
required to be paid pursuant to Section 11.2 in respect of any Unit or Units,
the Lease Term with respect to such Unit or Units and the obligation to pay
Basic Rent for such Unit or Units accruing subsequent to the date of payment of
Stipulated Loss Value or date of conveyance of such Replacement Unit or Units
pursuant to Section 11.2 shall terminate; provided that Lessee shall be
obligated to pay all Rent in respect of such Unit or Units which is payable
under Section 11.2 with respect to such payment of Stipulated Loss Value or
such replacement of such Unit or Units and in respect of all other Units then
continuing to remain subject to this Lease.

              Section 11.4    Disposition of Equipment; Replacement of Unit.
(a)  Upon the payment of all sums required to be paid pursuant to Section 11.2
in respect of any Unit or Units, Lessor will convey to Lessee or its designee
all right, title and interest of Lessor in and to such Unit or Units, "as is",
"where is", without recourse or warranty, except for a warranty against
Lessor's Liens, and shall execute and deliver to Lessee or its designee such
bills of sale and other documents and instruments as Lessee or its designee may
reasonably request to evidence such conveyance.  As to each separate Unit so
disposed of, so long as no Lease Event of Default shall have occurred and be
continuing, Lessee or its designee shall be entitled to any amounts arising
from such disposition, plus any awards, insurance or other proceeds and damages
received by Lessee, Lessor or the Indenture Trustee by reason of such Event of
Loss after having paid the Stipulated Loss Value and any other Rent
attributable thereto.

              (b)       At the time of or prior to any replacement of any Unit
or Replacement Unit, Lessee, at its own expense, will (A) furnish Lessor with a
Bill of Sale with respect to the Replacement Unit substantially in the form
delivered pursuant to Section 4.1(g) of the Participation Agreement, (B) cause
a Lease Supplement substantially in the form of Exhibit A hereto, subjecting
such Replacement Unit to this Lease, and duly executed by Lessee, to be
delivered to Lessor for execution and, upon such execution, to be filed for
recordation in the same manner as provided for the original Lease Supplement in
Section 16.1, (C) so long as the Indenture shall not have been satisfied and
discharged, cause an Indenture Supplement substantially in the form of Exhibit
A to the Indenture for such Replacement Unit, to be delivered to Lessor and to
the Indenture Trustee for execution and, upon such execution, to be





                                     18
<PAGE>   24
filed for recordation in the same manner and within the same time periods as
provided for the original Indenture Supplement in Section 16.1, (D) furnish
Lessor with an opinion of Lessee's counsel (which may be Lessee's General
Counsel or Assistant General Counsel), to the effect that (x) the Bill of Sale
referred to in clause (A) above constitutes an effective instrument for the
conveyance of title to the Replacement Unit to Lessor, (y) legal and beneficial
title to the Replacement Unit has been delivered to Lessor, free and clear of
all Liens (other than Permitted Liens of the type described in clause (ii) with
respect to sublessees, and in clauses (iii), (iv), (vi) and (vii) of the
definition thereof), and (z) all filings and recordings and other action
necessary or appropriate to protect the respective interests of Lessor and the
Indenture Trustee in the Replacement Units have been accomplished, (E) furnish
to Owner Participant an agreement to indemnify Owner Participant against any
adverse tax consequences suffered as a result of such replacement, (F) furnish
Lessor with an engineer's certificate (which may be from an employee of Lessee)
certifying as to the utility, capacity, condition, model year and remaining
useful life required under clause (i) of Section 11.2, (G) furnish to Lessor
and the Indenture Trustee an Officer's Certificate certifying that the
Replacement Unit has a fair market value, utility, capacity, model year and
remaining economic useful life and condition at least equal to the Unit being
replaced and is free and clear of all Liens (other than Permitted Liens of the
type described in clause (ii) with respect to sublessees, and in clauses (iii),
(iv), (vi) and (vii) of the definition thereof), and (H) furnish such other
documents and evidence as Owner Participant, Lessor or the Indenture Trustee,
or their respective counsel, may reasonably request in order to establish the
consummation of the transactions contemplated by this Section 11.4.  For all
purposes hereof, upon passage of title thereto to Lessor the Replacement Unit
shall be deemed part of the property leased hereunder and the Replacement Unit
shall be deemed a "Unit" of Equipment as defined herein.  Upon such passage of
title, Lessor will transfer to Lessee, "as is" and "where is" and without
recourse or warranty (except as to Lessor's Liens), all Lessor's right, title
and interest in and to the replaced Unit, and upon such transfer, Lessor will
request in writing that the Indenture Trustee execute and deliver to Lessee an
appropriate instrument releasing such replaced Unit from the lien of the
Indenture.  Lessee shall pay all reasonable out of pocket costs and expenses
(including reasonable legal fees and expenses) incurred by Lessor, Owner
Participant and the Indenture Trustee in connection with any replacement
pursuant to this Section 11.4.

              Section 11.5    Eminent Domain.  In the event that during the
Lease Term the use of any Unit is requisitioned or taken by any governmental
authority under the power of eminent domain or otherwise for a period which
does not constitute an Event of Loss, all of Lessee's obligations under the
Operative Agreements, including without limitation, Lessee's obligation to pay
all installments of Basic Rent, shall continue for the duration of such
requisitioning or taking.  Lessee shall be  entitled to receive and retain for
its own account all sums payable for any such period by such governmental
authority as compensation for requisition or taking of possession.  Any amount
referred to in this Section 11.5, in Section 11.4(a) or in Section 12 which is
payable to Lessee shall not be paid to Lessee, or if it has been previously
paid directly to Lessee, shall not be retained by Lessee, if at the time of
such payment a Lease Default under Section 14(g) or Section 14(h) or a Lease
Event of Default shall have occurred and be





                                     19
<PAGE>   25
continuing, but shall be paid to and held by Lessor pursuant to Section 24, or
if the Indenture shall not then have been discharged pursuant to its terms, to
the Indenture Trustee, as security for the obligations of Lessee under this
Lease, and at such time as there shall not be continuing any such Lease Default
or Lease Event of Default, such amount shall be paid to Lessee.

Section 12.   Insurance.

              Section 12.1    Insurance.  Lessee will at all times after
delivery and acceptance of each Unit, at its own expense, keep or cause to be
kept such Unit insured by a reputable insurance company or companies in amounts
and against risks and with deductibles and terms and conditions not less than
the insurance, if any, maintained by Lessee with respect to similar equipment
which it owns or leases, but in no event shall such coverage be for amounts or
against risks less than the prudent industry standard for companies engaged in
full service leasing of railcars.  Without limiting the foregoing, Lessee will
in any event;

              (a)       keep each Unit of the Equipment insured against
physical damage in an amount not less than the Stipulated Loss Value
attributable thereto as shown on Schedule 4 to the Participation Agreement,
subject to a limit of not less than $10 million per occurrence (except for a
$10 million annual aggregate each for flood and earth movement), provided that
such coverage may provide for deductible amounts of not more than $1,000,000
per occurrence; and

              (b)       maintain public liability insurance naming Owner
Participant, the Lessor (as Lessor of the Equipment and in its individual
capacity) and the Indenture Trustee as additional insureds (but only with
respect to liability arising out of or related to the Operative Agreements and
the Equipment) against bodily injury, death or property damage arising out of
the use or operation of the Equipment with general and excess liability limits
of not less than $50,000,000 per occurrence or in the aggregate, provided that
such coverage may provide for deductible amounts not exceeding the lesser of
(x) $10,000,000 or (y) 5% of the book value of the railcar fleet of Lessee.

              It is understood and agreed that the insurance required hereunder
may be part of a company-wide insurance program, including risk-retention and
self-insurance.  Any policy of insurance maintained in accordance with this
Section 12.1 and any policy purchased in substitution or replacement for any of
such policies shall provide that if any such insurance is cancelled or
terminated for any reason whatever (other than upon normal policy expiration),
Lessor, the Indenture Trustee and Owner Participant shall receive 30 days'
prior written notice of such cancellation or termination.

              Section 12.2    Physical Damage Insurance.  (a) The insurance
maintained pursuant to Section 12.1(a) shall provide that (i) so long as the
Equipment Notes remain outstanding, the proceeds up to the Stipulated Loss
Value for any loss or damage to any Unit shall be made to the Indenture Trustee
under a standard loss payable clause, and thereafter to Lessor and (ii) so





                                     20
<PAGE>   26
long as no Lease Event of Default shall have occurred and be continuing, Lessee
will be entitled, at its own expense, to make all proofs of loss and take all
other steps necessary to collect the proceeds of such insurance.

              (b)       In lieu of maintaining the physical damage insurance
required by Section 12.1.(a), Lessee may self-insure with respect to the
Equipment for such amounts and against such risks as shall be consented to by
Lessor and the Indenture Trustee, which consent shall be based upon reasonable
practices then in effect in the railcar leasing and insurance industries and
upon the financial condition of Lessee.

              (c)       The entire proceeds of any property insurance or third
party payments for damages to any Unit received by Lessor or the Indenture
Trustee shall be held by such party until, with respect to such Unit, the
repairs referred to in clause (i) below are made as specified therein or
payment of the Stipulated Loss Value is made, and such entire proceeds will be
paid, so long as no Lease Event of Default shall have occurred and be
continuing, either:

              (i)       to Lessee promptly following receipt by the Indenture
         Trustee or Lessor, as the case may be, of a written application signed
         by Lessee for payment to Lessee for  repairing or restoring the Units
         which have been damaged so long as (1) Lessee shall have complied with
         the applicable provisions of the Lease, and (2) Lessee shall have
         certified that any damage to such Units shall have been fully repaired
         or restored; or

              (ii)      if this Lease is terminated with respect to such Unit
         because of an Event of Loss and Lessee has paid the Stipulated Loss
         Value and all other amounts due as a result thereof, such proceeds
         shall be promptly paid over to, or retained by, Lessee.

              Section 12.3    Public Liability Insurance.  (a) The public
liability insurance referred to in paragraph 12.1(b) shall (i) provide that in
as much as such policies cover more than one insured, all terms, conditions,
insuring agreements and endorsements, with the exception of limits of liability
and liability for premiums, commissions, assessments or calls (which shall be
solely a liability of Lessee), shall operate in the same manner as if there
were a separate policy or policies covering each insured, (ii) waive any rights
of subrogation of the insurers against Owner Participant, Lessor, as Lessor of
the Equipment and in its individual capacity, and the Indenture Trustee, (iii)
provide that neither Owner Participant, Lessor, as Lessor of the Equipment and
in its individual capacity, nor the Indenture Trustee shall have any
responsibility for any insurance premiums, whether for coverage before or after
cancellation or termination of any such policies as to Lessee and (iv) be
primary without contribution from any similar insurance maintained by Owner
Participant, Lessor or the Indenture Trustee.

              (b)       Lessee shall use its reasonable efforts to obtain
public liability insurance policies stipulating that coverage thereunder will
not be invalidated (as to Owner Participant, Lessor, as Lessor of the Equipment
and in its individual capacity, and the Indenture Trustee) due to any action or
inaction of Lessee or any other Person (other than Owner Participant, Lessor





                                     21
<PAGE>   27
or the Indenture Trustee, but only in respect of their respective coverages),
but shall be under no obligation to obtain such policies containing such
stipulations if they are not available to Lessee at commercially reasonable
rates in the markets in which Lessee has then placed its insurance program.

              (c)       In the event any public liability insurance policy or
coverage thereunder which are required to be maintained under Section 12.1(b)
shall not be available to Lessee in the commercial insurance market on
commercially reasonable terms, Lessor shall not unreasonably withhold its
agreement to waive such requirement.  Lessee shall make written request for any
such waiver in writing, accompanied by written reports prepared, at Lessee's
option, either by (i) one independent insurance advisor chosen by Lessee and
Lessor or (ii) three independent insurance advisors, one chosen by Lessor, one
chosen by Lessee and one chosen by the other two advisors (one of which may be
the regular insurance broker or brokers of Lessee) - in either case, such
independent insurance advisors being of recognized national standing.  The fees
and expenses of all such advisors shall be paid by Lessee.  The written reports
required hereunder shall (x) state that such insurance (or the required
coverage thereunder) is not reasonably available to Lessee at commercially
reasonable premiums in the commercial insurance markets within which Lessee
normally purchases its insurance from insurers, acceptable to Lessee, with a
Best's rating of A- or better for railcars of similar type and capacity and (y)
explain in detail the basis for such conclusions.  Upon the granting of any
such waiver, Lessee shall within 15 days thereafter certify to Lessor in
writing the cost (on a fleet-wide basis) of liability insurance premiums for
the coverage required by Section 12.1(b) for the immediately preceding fiscal
year; and in the event that any such certificate is not received by Lessor
within such 15 day period, any such waiver shall be deemed revoked.  At any
time after the granting of such waiver, but not more often than once a year,
Lessor may make a written request for a supplemental report (in form reasonably
acceptable to Lessor) from such insurance advisor(s) updating the prior report
and reaffirming the conclusions set forth therein.  Lessee shall provide any
such required supplemental report within 60 days after receipt of the written
request therefor.  Any such waiver shall be effective for only as long as such
insurance is not reasonably available to Lessee in the commercial markets in
which Lessee normally purchases its insurance at commercially reasonable rates,
it being understood that the failure of Lessee to furnish timely any such
supplemental report shall be conclusive evidence that such condition no longer
exists.  If such supplemental report shows that such coverage is available,
Lessee shall within 90 days of such report obtain such insurance coverage.
During any period with respect to which such waiver has been granted and
remains in effect under this Section 12.3(c), Lessee shall obtain public
liability insurance as set forth in Section 12.1(b) from such carriers, in such
amounts and with coverage limits and deductibles as is prudent under the
circumstances, but in any event in an amount that may be purchased for a
premium equal to 110% of Lessee's cost (on a fleet-wide basis) of public
liability insurance premiums for the coverage required by Section 12.1(b) for
the fiscal year immediately preceding the fiscal year in which such waiver
first was granted.





                                     22
<PAGE>   28
              Section 12.4    Certificate of Insurance.  Lessee shall, prior to
the Closing Date and when the renewal certificate referred to below is sent
(but in any event not less than annually), furnish Lessor, the Indenture
Trustee and the Owner Participant with a certificate signed by the insurer or
an independent insurance broker showing the insurance then maintained by Lessee
pursuant to Section 12.1.  With respect to any renewal policy or policies,
certificates or binders evidencing such renewal shall be furnished as soon as
practicable, but in no event later than 30 days after the earlier of the date
such renewal is effected or the expiration date of the original policy or
policies.  Simultaneously, with the furnishing of such certificate, Lessee will
provide appropriate evidence, reasonably satisfactory to Lessor and the
Indenture Trustee, that all premiums due on such insurance have been paid.

              Section 12.5    Additional Insurance.  In the event that Lessee
shall fail to maintain insurance as herein provided in Section 12.1 or, if
applicable, Section 12.3, Lessor may at its option, upon prior written notice
to Lessee, provide such insurance and, in such event, Lessee shall, upon demand
from time to time reimburse Lessor for the cost thereof together with interest
from the date of payment thereof at the Late Rate, on the amount of the cost to
Lessor of such insurance which Lessee shall have failed to maintain.  If after
Lessor has provided such insurance, Lessee then obtains the coverage provided
for in Section 12.1 which was replaced by the insurance provided by Lessor, and
Lessee provides Lessor with evidence of such coverage reasonably satisfactory
to Lessor, Lessor shall cancel the insurance it has provided pursuant to the
first sentence of this Section 12.5.  In such event, Lessee shall reimburse
Lessor for all costs to Lessor of cancellation, including without limitation
any short rate penalty, together with interest from the date of Lessor's
payment thereof at the Late Rate.  In addition, at any time Lessor (either
directly or in the name of Owner Participant) may at its own expense carry
insurance with respect to its interest in the Units, provided that such
insurance does not interfere with Lessee's ability to insure the Equipment as
required by this Section 12 or adversely affect Lessee's insurance or the cost
thereof, it being understood that all salvage rights to each Unit shall remain
with Lessee's insurers at all times.  Any insurance payments received from
policies maintained by Lessor pursuant to the previous sentence shall be
retained by Lessor without reducing or otherwise affecting Lessee's obligations
hereunder, other than with respect to Unit(s) with respect to which such
payments have been made.

Section 13.   Reports; Inspection.

              Section 13.1    Duty of Lessee to Furnish.  On or before April
30, 1997, and on or before each April 30 thereafter, Lessee will furnish to
Lessor, Owner Participant and the Indenture Trustee an accurate statement, as
of the preceding December 31, (a) showing the amount, description and reporting
marks of the Units then leased hereunder, the amount, description and reporting
marks of all Units that may have suffered an Event of Loss during the 12 months
ending on such December 31 (or since the Closing Date, in the case of the first
such statement), and such other information regarding the condition or repair
of the Equipment as Lessor may reasonably request, (b) stating that, in the
case of all Equipment repainted during the period covered by such statement,
the markings required by Section 4.2 hereof shall have





                                     23
<PAGE>   29
been preserved or replaced, (c) showing the percentage of use in each state in
the United States and in both Canada and Mexico based on the total mileage
travelled by all railcars in Lessee's fleet (or by the Units, if and to the
extent generally made available to owner participants in similar sale and
leaseback transactions with respect to railcars) for the prior calendar year as
reported to Lessee by railroads (provided, that Lessee shall cooperate with
Owner Participant and Lessor and shall provide such additional information on
such matters as Owner Participant or Lessor may reasonably request to enable
Owner Participant and Lessor to pursue or fulfill their respective tax audit
and tax litigation rights and obligations), and (d) stating that Lessee is not
aware of any condition of any Unit which would cause such Unit not to comply in
any material respect with the rules and regulations of the FRA and the
interchange rules of the Field Manual of the AAR as they apply to the
maintenance and operation of the Equipment in interchange.

              Section 13.2    Lessor's Inspection Rights.  Lessor, Owner
Participant and the Indenture Trustee each shall have the right, but not the
obligation, at their respective sole cost, expense and risk (including, without
limitation, the risk of bodily injury or death), by their respective authorized
representatives, to inspect (a) the Equipment and Lessee's records with respect
thereto, and (b) following the occurrence of a Lease Default and during the
continuance thereof, or following notice by Lessee that it will be returning
any Unit to Lessor pursuant to Section 10 or Section 22, any sublease of the
Equipment and Lessee's records with respect thereto.  All inspections shall be
conducted during Lessee's normal business hours, on Lessee's premises or in
areas that are not the premises of a sublessee to which Lessee has reasonable
access, and upon reasonable prior notice to Lessee.  Lessee shall not be liable
for any injury to, or the death of, any Person exercising, either on behalf of
Lessor, any Owner Participant, the Indenture Trustee or any prospective user,
the rights of inspection granted under this Section 13.2 unless caused by
Lessee's gross negligence or wilful misconduct.  No inspection pursuant to this
Section 13.2 shall interfere with the use, operation or maintenance of the
Equipment or the ordinary course of Lessee's or any sublessee's business, and
Lessee shall not be required to undertake or incur any additional liabilities
in connection therewith.

Section 14.   Lease Events of Default.

              The following events shall constitute Lease Events of Default
hereunder (whether any such event shall be voluntary or involuntary or come
about or be effected by operation of law or pursuant to or in compliance with
any judgment, decree or order of any court or any order, rule or regulation of
any administrative or governmental body) and each such Lease Event of Default
shall be deemed to exist and continue so long as, but only as long as, it shall
not have been remedied:

              (a)       Lessee shall fail to make any payment of Basic Rent,
Early Purchase Price, Basic Term Purchase Price or any other purchase price to
be paid by Lessee for any Units pursuant to this Lease or the Participation
Agreement, Stipulated Loss Value or Termination Value within 10 Business Days
after the same shall have become due; or





                                     24
<PAGE>   30
              (b)       Lessee shall fail to make any payment of Supplemental
Rent, including indemnity or tax indemnity payments, but not including
Stipulated Loss Value, Early Purchase Price, Basic Term Purchase Price or any
other purchase price to be paid by Lessee for any Units pursuant to this Lease
or the Participation Agreement after the same shall have become due and such
failure shall continue unremedied for 10 Business Days after receipt by Lessee
of written notice of such failure from Lessor or the Indenture Trustee; or

              (c)       Lessee shall fail to maintain in effect the insurance
required by Section 12 and such failure shall not have been waived as provided
for therein; or

              (d)       Lessee shall make or permit any possession of the
Equipment or any portion thereof not permitted by this Lease, provided that
such unauthorized possession shall not constitute a Lease Event of Default for
a period of 45 days after the occurrence thereof so long as (i) such
unauthorized possession is not the result of any willful action of Lessee and
(ii) such unauthorized possession is capable of being cured and Lessee
diligently pursues such cure throughout such 45-day period; or Lessee shall
make or permit any unauthorized assignment or transfer of this Lease in
violation of Section 18.2; or

              (e)       Lessee shall fail to observe or perform any of the
covenants or agreements to be observed or performed by Lessee in Section 6.8 of
the Participation Agreement, and such failure shall continue unremedied for 30
days during which period Lessee diligently pursues the cure of such failure; or

              (f)       any representation or warranty made by Lessee in any
Lessee Agreement (other than the Tax Indemnity Agreement) is untrue or
incorrect in any material respect as of the date of making thereof and such
untruth or incorrectness shall continue to be material and unremedied for a
period of 30 days after receipt by Lessee of written notice thereof from Lessor
or the Indenture Trustee; provided that, if such untruth or incorrectness is
capable of being remedied, no such untruth or incorrectness shall constitute a
Lease Event of Default hereunder for a period of 60 days after receipt of such
notice so long as Lessee is diligently proceeding to remedy such untruth or
incorrectness and shall in fact remedy such untruth or incorrectness within
such period; provided that such untrue or incorrect representation or warranty
shall be deemed to be remedied only after all adverse consequences thereof, if
any, have been remedied; or

              (g)       Lessee shall (i) commence a voluntary case or other
proceeding seeking liquidation, reorganization or other relief with respect to
itself or its debts under any bankruptcy, insolvency or other similar law now
or hereafter in effect, or seeking the appointment of a trustee, receiver,
liquidator, custodian or other similar official of it or any substantial part
of its property, or (ii) consent to any such relief or to the appointment of or
taking possession by any such official in any voluntary case or other
proceeding commenced against it, or (iii) admit in writing its inability to pay
its debts generally as they come due, or (iv) make a general





                                     25
<PAGE>   31
assignment for the benefit of creditors, or (v) take any corporate action to
authorize any of the foregoing; or

              (h)       an involuntary case or other proceeding shall be
commenced against Lessee seeking liquidation, reorganization or other relief
with respect to it or its debts under any bankruptcy, insolvency or other
similar law now or hereafter in effect, or seeking the appointment of a
trustee, receiver, liquidator, custodian or other similar official of it or any
substantial part of its property, and such involuntary case or other proceeding
shall remain undismissed and unstayed for a period of 60 days; or

              (i)       Lessee shall fail to observe or perform any other of
the covenants or agreements to be observed or performed by Lessee under any
Lessee Agreement (other than the Tax Indemnity Agreement) or any certificate
and such failure shall continue unremedied for 30 days after notice from Lessor
or the Indenture Trustee to Lessee, specifying the failure and demanding the
same to be remedied; provided that, if such failure is capable of being
remedied, and the remedy requires an action other than, or in addition to, the
payment of money, no such failure (other than one relating to the payment of
such money) shall constitute a Lease Event of Default hereunder for a period of
90 days after receipt of such notice so long as Lessee is diligently proceeding
to remedy such failure and shall in fact remedy such failure within such
period;

provided that, notwithstanding anything to the contrary contained in this
Lease, any failure of Lessee to perform or observe any covenant or agreement
herein shall not constitute a Lease Event of Default if such failure is caused
solely by reason of an event referred to in the definition of "Event of Loss"
so long as Lessee is continuing to comply with the applicable terms of Section
11.

Section 15.   Remedies.

              Section 15.1    Remedies.  Upon the occurrence of any Lease Event
of Default and at any time thereafter so long as the same shall be continuing,
Lessor may, at its option, declare this Lease to be in default by a written
notice to Lessee (except that this Lease shall, without any action on the part
of Lessor, be automatically deemed to have been declared in default upon the
occurrence of a Lease Event of Default described in Section 14(g) or (h)); and
at any time thereafter, unless Lessee shall have remedied all outstanding Lease
Events of Default prior to the commencement of the exercise by Lessor of any of
its remedies hereunder, Lessor may do one or more of the following as Lessor in
its sole discretion shall elect, to the extent permitted by, and subject to
compliance with any mandatory requirements of, applicable law then in effect:

              (a)       proceed by appropriate court action or actions, either
at law or in equity, to enforce performance by Lessee of the applicable
covenants of this Lease or to recover damages for the breach thereof;





                                     26
<PAGE>   32
              (b)       by notice in writing to Lessee, Lessor may demand that
Lessee, and Lessee shall, upon written demand of Lessor and at Lessee's
expense, forthwith return all or any part of the Equipment to Lessor or its
order in the manner and condition required by, and otherwise in accordance with
all of the provisions of Section 15.6; or Lessor with or without notice or
judicial process may by its agents enter upon the premises of Lessee or other
premises where any of the Equipment may be located and take possession of and
remove all or any of the Units, and Lessor may use and employ in connection
with such removal any services, aids, equipment, trackage and other facilities
of Lessee as is reasonably required to remove such Units and thenceforth hold,
possess and enjoy the same free from any right of Lessee, or its successor or
assigns, to use such Units for any purpose whatever;

              (c)       sell any Unit at public or private sale in such manner
as Lessor may determine, free and clear of any rights of Lessee and without any
duty to account to Lessee with respect to such sale or for the proceeds thereof
(except to the extent required by paragraph (f) below if Lessor elects to
exercise its rights under said paragraph), in which event Lessee's obligation
to pay Basic Rent with respect to such Unit hereunder due for any periods
subsequent to the date of such sale shall terminate (except to the extent that
Basic Rent is to be included in computations under paragraph (e) or (f) below
if Lessor elects to exercise its rights under either of said paragraphs);

              (d)       hold, keep idle or lease to others any Unit as Lessor
in its sole discretion may determine, free and clear of any rights of Lessee
and without any duty to account to Lessee with respect to such action or
inaction or for any proceeds with respect thereto, except that Lessee's
obligation to pay Basic Rent with respect to such Unit due for any periods
subsequent to the date upon which Lessee shall have been deprived of possession
and use of such Unit pursuant to this Section 15 shall be reduced by the net
proceeds, if any, received by Lessor from leasing such Unit to any Person other
than Lessee;

              (e)       whether or not Lessor shall have exercised, or shall
thereafter at any time exercise, any of its rights under paragraph (a), (b),
(c) or (d) above with respect to any Unit, Lessor, by written notice to Lessee
specifying a payment date (which date shall be a Determination Date for the
purposes of computing Stipulated Loss Value) which shall be not less than 30
days after the date of such notice, may demand that Lessee pay to Lessor, and
Lessee shall pay to Lessor, on the payment date specified in such notice, as
liquidated damages for loss of a bargain and not as a penalty (in lieu of the
Basic Rent for such Unit due after the payment date specified in such notice),
all Rent due and payable, or accrued, for such Unit as of the payment date
specified in such notice (exclusive of any in advance Basic Rent due on such
date) plus whichever of the following amounts Lessor, in its sole discretion,
shall specify in such notice:  (i) an amount with respect to each such Unit
which represents the excess of the present value, at the time of such payment
date, of all rentals for such Unit which would otherwise have accrued hereunder
from such payment date for the remainder of the Basic Term or any Renewal Term
then in effect over the then present value of the then Fair Market Rental Value
of such Unit (taking into account its actual condition) for such period
computed by discounting from the





                                     27
<PAGE>   33
end of such Term to such payment date rentals which Lessor reasonably estimates
to be obtainable for the use of such Unit during such period, such present
value to be computed in each case on a basis of a per annum discount at the
Debt Rate, compounded semiannually from the respective dates upon which rentals
would have been payable hereunder had this Lease not been terminated; or (ii)
an amount equal to the excess, if any, of the Stipulated Loss Value for such
Unit computed as of the payment date specified in such notice over the Fair
Market Sales Value of such Unit (taking into account its actual condition) as
of the payment date specified in such notice; or (iii) if Lessor shall not have
sold such Unit pursuant to the exercise of its rights under paragraph (c) above
with respect to such Unit, an amount equal to the higher of Stipulated Loss
Value for such Unit computed as of the payment date specified in such notice or
the Fair Market Sales Value of such Unit (assuming it is in the condition
required by this Lease) as of the payment date specified in such notice; and
upon payment by Lessee pursuant to said clause (iii) of such Stipulated Loss
Value or Fair Market Sales Value, as the case may be, and of all other amounts
payable by Lessee under this Lease and under the other Operative Agreements in
respect of such Unit, Lessor shall transfer "as is" and "where is" and without
recourse or warranty all right, title and interest of Lessor in and to such
Unit to Lessee or as it may direct, and Lessor shall execute and deliver such
documents evidencing such transfer as Lessee shall reasonably request;

              (f)       if Lessor shall have sold any Unit pursuant to
paragraph (c) above, Lessor, in lieu of exercising its rights under paragraph
(e) above with respect to such Unit may, if it shall so elect, demand that
Lessee pay to Lessor, and Lessee shall pay to Lessor, as liquidated damages for
loss of a bargain and not as a penalty (in lieu of the Basic Rent for such Unit
due subsequent to the Rent Payment Date next preceding such sale), any accrued
and unpaid Rent for such Unit as of the date of such sale (Basic Rent for this
purpose accruing at a per diem rate equal to the semiannual amount due on the
next following Rent Payment Date divided by 180) and, if that date is a Rent
Payment Date, the Basic Rent due on that date (exclusive of any in advance
Basic Rent due on such date), plus the amount, if any, by which the Stipulated
Loss Value of such Unit computed as of the Rent Payment Date next preceding the
date of such sale or, if such sale occurs on a Rent Payment Date, then computed
as of such Rent Payment Date, exceeds the net proceeds of such sale, plus
interest on such amounts from the date of such sale to the date of payment at
the Late Rate; and

              (g)       Lessor may terminate the leasing of any or all Units
under this Lease or may exercise any other right or remedy that may be
available to it under applicable law.

              In addition, Lessee shall be liable, except as otherwise provided
above, for any and all unpaid Rent due hereunder before or during the exercise
of any of the foregoing remedies (exclusive of any in advance Basic Rent due on
such date), and for legal fees and other costs and expenses incurred by reason
of the occurrence of any Lease Event of Default or the exercise of Lessor's
remedies with respect thereto, including without limitation the repayment in
full of any costs and expenses necessary to be expended in repairing any Unit
in order to cause it to be in compliance with all maintenance and regulatory
standards imposed by this Lease.





                                     28
<PAGE>   34
              Section 15.2    Cumulative Remedies.  The remedies in this Lease
provided in favor of Lessor shall not be deemed exclusive, but shall be
cumulative and shall be in addition to all other remedies in its favor existing
at law or in equity.  Lessee hereby waives any mandatory requirements of law,
now or hereafter in effect, which might limit or modify any of the remedies
herein provided, to the extent that such waiver is permitted by law.  Lessee
hereby waives any and all existing or future claims of any right to assert any
offset or counterclaim against the Rent payments due hereunder, and agrees to
make the rent payments regardless of any offset or counterclaim or claim which
may be asserted by Lessee on its behalf in connection with the lease of the
Equipment.  Lessee further agrees that Lessee's obligations to pay all Rent
(including, without limitation, all Basic Rent and Supplemental Rent) and its
obligations to maintain the Equipment pursuant to Section 8 hereof and to
maintain the insurance pursuant to Section 12 hereof shall constitute monetary
obligations of the Lessee for all purposes of Section 365 of the Bankruptcy
Code.  To the extent permitted by applicable law, Lessee hereby waives any
rights now or hereafter conferred by statute or otherwise that may require
Lessor to sell, lease or otherwise use the Equipment in mitigation of Lessor's
damages as set forth in Section 15.1 or that may otherwise limit or modify any
of Lessor's rights and remedies provided in this Section 15.

              Section 15.3    No Waiver.  No delay or omission to exercise any
right, power or remedy accruing to Lessor upon any breach or default by Lessee
under this Lease shall impair any such right, power or remedy of Lessor, nor
shall any such delay or omission be construed as a waiver of any breach or
default, or of any similar breach or default hereafter occurring; nor shall any
waiver of a single breach or default be deemed a waiver of any subsequent
breach or default.

              Section 15.4    Notice of Lease Default.  Lessee agrees to
furnish to Lessor, Owner Participant and the Indenture Trustee, promptly upon
any officer acquiring actual knowledge of any condition which constituted or
constitutes a Lease Default under this Lease, written notice specifying such
condition and the nature and status thereof.

              Section 15.5    Lessee's Duty to Furnish Information with Respect
to Subleases.  Upon the declaration of a Lease Event of Default pursuant to
Section 14(a), (b), (d) (with respect to the Units affected thereby), (g) or
(h), Lessor may request that Lessee deliver to Lessor, and upon such request
Lessee agrees that it will promptly provide to Lessor, a detailed list of all
Units that are then being subleased by Lessee, the identity of the sublessees
with respect to such Units, the identity of an employee or other agent of each
such sublessee with whom Lessee regularly communicates with in respect of such
Units and the most recent known location of such Units.

              Section 15.6    Lessee's Duty to Return Equipment Upon Default.
If Lessor or any assignee of Lessor shall terminate this Lease pursuant to this
Section 15 and shall have provided to Lessee the written demand specified in
Section 15.1(b), Lessee shall forthwith deliver possession of the Equipment to
Lessor (except where Lessor has received all amounts payable





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<PAGE>   35
by Lessee pursuant to any notice provided by Lessor under Section
15.1(e)(iii)).  For the purpose of delivering possession of any Unit to Lessor
as above required, Lessee shall at its own cost, expense and risk (except as
hereinafter stated):

              (a)       Forthwith place such Equipment upon such storage tracks
         of Lessee or any of its affiliates or, at the expense of Lessee, on
         any other storage tracks, as Lessor may designate or, in the absence
         of such designation, as Lessee may select;

              (b)       Permit Lessor to store such Equipment on such tracks
         without charge for insurance, rent or storage until such Equipment has
         been sold, leased or otherwise disposed of by Lessor and during such
         period of storage Lessee shall continue to maintain all insurance
         required by Section 12.1 hereof; and

              (c)       Transport the Equipment to any place on any lines of
         railroad or to any connection carrier for shipment, all as Lessor may
         direct in writing.

All Equipment returned shall be in the condition required by Section 6.2
hereof.

              All amounts earned in respect of the Equipment after the date of
termination of this Lease pursuant to this Section 15, but not exceeding
amounts actually received therefor, shall be paid to Lessor or, so long as the
Indenture shall not have been discharged pursuant to its terms, the Indenture
Trustee, and, if received by Lessee, shall be promptly turned over to Lessor or
the Indenture Trustee as aforesaid.  In the event any Unit is not assembled,
delivered and stored as hereinabove provided within 15 days after the
termination of the leasing of such Unit pursuant to Section 15, Lessee shall,
in addition, pay to Lessor or the Indenture Trustee as aforesaid as liquidated
damages and not as a penalty, for each day thereafter an amount equal to the
amount, if any, by which the higher of (i) an amount equal to 110% of the daily
equivalent of the Basic Rent in effect immediately prior to the expiration of
the Lease for such Unit and (ii) 125% of the Fair Market Rental Value for such
Unit for each such day exceeds the amount, if any, received by Lessor or the
Indenture Trustee as aforesaid (either directly or from Lessee) for such day
for such Unit pursuant to the preceding sentence.

              Section 15.7    Specific Performance; Lessor Appointed Lessee's
Agent.  The assembling, delivery, storage and transporting of the Equipment as
provided in Section 15.6 are of the essence of this Lease, and upon application
to any court of equity having jurisdiction in the premises, Lessor shall be
entitled to a decree against Lessee requiring specific performance of the
covenants of Lessee so to assemble, deliver, store and transport the Equipment.
Without in any way limiting the obligation of Lessee under the provisions of
Section 15.6, Lessee hereby irrevocably appoints Lessor as the agent and
attorney of Lessee, with full power and authority, at any time while Lessee is
obligated to deliver possession of any Units to Lessor pursuant to this Section
15, to demand and take possession of such Unit in the name and on behalf of
Lessee from whosoever shall be at the time in possession of such Unit.





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<PAGE>   36
Section 16.   Filings; Further Assurances.

              Section 16.1    Filings.   This Lease or a counterpart or copy
hereof or evidence hereof may be filed or recorded in any public office as may
be necessary or appropriate to protect the interest of Lessor, Owner
Participant or the Indenture Trustee herein or in the Units.  On or prior to
the Closing Date Lessee will cause this Lease, the Lease Supplements dated the
Closing Date, the Indenture and the Indenture Supplements dated the Closing
Date (i) to be duly filed and recorded with the STB in accordance with 49
U.S.C. Section 11301, (ii) to be deposited with the Registrar General of Canada
pursuant to Section 90 of the Railway Act of Canada (and all necessary actions
shall have been taken for publication of such deposit in The Canada Gazette in
accordance with said Section 90) and (iii) will furnish Lessor, the Indenture
Trustee and Owner Participant proof thereof.

              Section 16.2    Further Assurances.  Lessee will duly execute and
deliver to Lessor such further documents and assurances and take such further
action as Lessor may from time to time reasonably request or as may be required
by applicable law or regulation in order to effectively carry out the intent
and purpose of this Lease and to establish and protect the rights and remedies
created or intended to be created in favor of Lessor, Owner Participant and the
Indenture Trustee hereunder, including, without limitation, the execution and
delivery of supplements or amendments hereto, in recordable form, subjecting to
this Lease any Replacement Unit and the recording or filing of counterparts
hereof or thereof in accordance with the laws of such jurisdiction as Lessor
may from time to time deem advisable.

              Section 16.3    Other Filings.  If, at any time during the Lease
Term, Mexico, or one or more states in Mexico, or any of the Canadian provinces
establishes a state or provincial or other system for filing and perfecting the
security and/or ownership interests of entities such as Lessor and/or the
Indenture Trustee, at the time that Lessee takes such action with respect to
other equipment similar to the Equipment (whether owned or leased by Lessee)
and also upon the request of Lessor, at the direction of the Owner Participant,
or the Indenture Trustee, Lessee shall cause any and all of the Operative
Agreements to be recorded with or under such system and shall cause all other
filings and recordings and all such other action required under such system to
be effected and taken, in order to perfect and protect the respective right,
title and interests of Lessor, Owner Participant and the Indenture Trustee.

              Section 16.4    Expenses.  Lessee will pay all costs, charges and
expenses (including reasonable attorneys fees) incident to any such filing,
refiling, recording and rerecording or depositing and re-depositing of any such
instruments or incident to the taking of such action.

Section 17.   Lessor's Right to Perform.

              If Lessee fails to make any payment required to be made by it
hereunder or fails to perform or comply with any of its other agreements
contained herein, Lessor may itself make such payment or perform or comply with
such agreement, after giving not less than five





                                     31
<PAGE>   37
Business Days' prior notice thereof to Lessee (except in the event that an
Indenture Default resulting from a Lease Default or a Lease Event of Default
shall have occurred and be continuing, in which event Lessor may effect such
payment, performance or compliance to the extent necessary to cure such
Indenture Default with notice given concurrently with such payment, performance
or compliance), but shall not be obligated hereunder to do so, and the amount
of such payment and of the reasonable expenses of Lessor incurred in connection
with such payment or the performance of or compliance with such agreement, as
the case may be, together with interest thereon at the Late Rate from such date
of payment, to the extent permitted by applicable law, shall be deemed to be
Supplemental Rent, payable by Lessee to Lessor on demand.

Section 18.   Assignment.

              Section 18.1    Assignment by Lessor.  Lessee and Lessor hereby
confirm that concurrently with the execution and delivery of this Lease, Lessor
has executed and delivered to the Indenture Trustee the Indenture, which
assigns as collateral security and grants a security interest in favor of the
Indenture Trustee in, to and under this Lease and certain of the Rent payable
hereunder (excluding Excepted Property), all as more explicitly set forth in
the Indenture.  Lessor agrees that it shall not otherwise assign or convey its
right, title and interest in and to this Lease, the Equipment or any Unit,
except as expressly permitted by and subject to the provisions of the
Participation Agreement, the Trust Agreement and the Indenture.

              Section 18.2    Assignment by Lessee.  Except as otherwise
provided in Section 8.3 or in the case of any requisition for use by any
governmental authority or any agency or instrumentality thereof referred to in
Section 11.1, Lessee will not, without the prior written consent of Lessor and
the Indenture Trustee (which consent shall not be unreasonably withheld),
assign any of its rights hereunder, except as provided herein and in the
Participation Agreement; provided that Lessee may assign its rights and/or
obligations hereunder to any corporation in accordance with the provisions of
Section 6.8 of the Participation Agreement or to any corporation which is an
Affiliate of Lessee, provided that in the case of an assignment to an
Affiliate, (a) Lessor shall have received an instrument or instruments
reasonably satisfactory to it, Owner Participant and the Indenture Trustee
under which such Affiliate assumes the obligations of Lessee hereunder, and (b)
Lessee irrevocably and unconditionally guarantees, pursuant to an agreement in
form and substance reasonably satisfactory to Lessor, Owner Participant and the
Indenture Trustee, such assignee's performance of all of such obligations as
primary obligor and not as a surety.

              Section 18.3    Sublessee's Performance and Rights.  Any
obligation imposed on Lessee in this Lease shall require only that Lessee
perform or cause to be performed such obligation, even if stated herein as a
direct obligation, and the performance of any such obligation by any permitted
assignee, sublessee or transferee under an assignment, sublease or transfer
agreement then in effect and permitted by the terms of this Lease shall
constitute performance by Lessee and discharge such obligation by Lessee.
Except as otherwise expressly





                                     32
<PAGE>   38
provided herein, any right granted to Lessee in this Lease shall grant Lessee
the right to (a) exercise such right or permit such right to be exercised by
any such assignee or transferee, or (b) in Lessee's capacity as sublessor
pursuant to any sublease permitted pursuant to Section 8.3 hereof, permit any
sublessee to exercise substantially equivalent rights under any such sublease
as are granted to Lessee under this Lease; provided, however, that Lessee's
right to terminate this Lease pursuant to Section 10 and Lessee's purchase and
renewal options set forth in Section 22 may be exercised only by Lessee itself
or by any assignee or transferee of, or successor to, Lessee in a transaction
permitted by Section 6.8 of the Participation Agreement; provided, further,
that nothing in this Section 18.3 shall or shall be deemed to (i) create any
privity of contract between any such sublessee, on the one hand, and any of
Lessor, any Owner Participant or any subsequent transferee or Affiliate of any
such Person, on the other hand, (ii) create any duty or other liability of any
nature whatsoever on the part of any of Lessor, any Owner Participant or any
subsequent transferee or Affiliate of any such Person, to any such sublessee or
any Affiliate thereof, or (iii) modify or waive any term or provision of
Section 8.3 hereof, which Section 8.3 shall control if any conflict arises
between any of the provisions thereof and this Section 18.3.  The inclusion of
specific references to obligations or rights of any such assignee, sublessee or
transferee in certain provisions of this Lease shall not in any way prevent or
diminish the application of the provisions of the two sentences immediately
preceding with respect to obligations or rights in respect of which specific
reference to any such assignee, sublessee or transferee has not been made in
this Lease.

Section 19.   Net Lease, etc.

              This Lease is a net lease and Lessee's obligation to pay all Rent
payable hereunder shall be absolute, unconditional and irrevocable and shall
not be affected by any circumstance of any character including, without
limitation, (i) any set-off, abatement, counterclaim, suspension, recoupment,
reduction, rescission, defense or other right that Lessee may have against
Lessor, Owner Participant, the Indenture Trustee or any holder of an Equipment
Note or Pass Through Certificate, any vendor or manufacturer of any Unit, or
any other Person for any reason whatsoever, (ii) any defect in or failure of
title, merchantability, condition, design, compliance with specifications,
operation or fitness for use of all or any part of any Unit, (iii) any damage
to, or removal, abandonment, requisition, taking, condemnation, loss, theft or
destruction of all or any part of any Unit or any interference, interruption,
restriction, curtailment or cessation in the use or possession of any Unit by
Lessee or any other Person for any reason whatsoever or of whatever duration,
(iv) any insolvency, bankruptcy, reorganization or similar proceeding by or
against Lessee, Lessor, Owner Participant, the Indenture Trustee, any holder of
an Equipment Note or Pass Through Certificate or any other Person, (v) the
invalidity, illegality or unenforceability of this Lease, any other Operative
Agreement, or any other instrument referred to herein or therein or any other
infirmity herein or therein or any lack of right, power or authority of Lessee,
Lessor, Owner Participant, the Indenture Trustee, any holder of an Equipment
Note or Pass Through Certificate or any other Person to enter into this Lease
or any other Operative Agreement or to perform the obligations hereunder or
thereunder or consummate the transactions contemplated hereby or thereby or any
doctrine of force





                                     33
<PAGE>   39
majeure, impossibility, frustration or failure of consideration, (vi) the
breach or failure of any warranty or representation made in this Lease or any
other Operative Agreement by Lessee, Lessor, Owner Participant, the Indenture
Trustee, any holder of an Equipment Note or Pass Through Certificate or any
other Person, (vii) the requisitioning, seizure or other taking of title to or
use of such Unit by any government or governmental authority or otherwise,
whether or not by reason of any act or omission of Lessor, Lessee or the
Indenture Trustee, or any other deprivation or limitation of use of such Unit
in any respect or for any length of time, whether or not resulting from
accident and whether or not without fault on the part of Lessee, or (viii) any
other circumstance or happening whatsoever, whether or not similar to any of
the foregoing.  To the extent permitted by applicable law, Lessee hereby waives
any and all rights which it may now have or which at any time hereafter may be
conferred upon it, by statute or otherwise, to terminate, cancel, quit or
surrender this Lease with respect to any Unit, except in accordance with the
express terms hereof.  If for any reason whatsoever this Lease shall be
terminated in whole or in part by operation of law or otherwise, except as
specifically provided herein, Lessee nonetheless agrees, to the maximum extent
permitted by law, to pay to Lessor or to the Indenture Trustee, as the case may
be, an amount equal to each installment of Basic Rent and all Supplemental Rent
due and owing, at the time such payment would have become due and payable in
accordance with the terms hereof had this Lease not been terminated in whole or
in part.  Each payment of Rent made by Lessee hereunder shall be final and
Lessee shall not seek or have any right to recover all or any part of such
payment from Lessor or any Person for any reason whatsoever.  Nothing contained
herein shall be construed to waive any claim which Lessee might have under any
of the Operative Agreements or otherwise or to limit the right of Lessee to
make any claim it might have against Lessor or any other Person or to pursue
such claim in such manner as Lessee shall deem appropriate.

Section 20.   Notices.

              Unless otherwise expressly specified or permitted by the terms
hereof, all communications and notices provided for herein shall be in writing
or by facsimile capable of creating a written record, and any such notice shall
become effective (i) upon personal delivery thereof, including, without
limitation, by overnight mail or courier service, (ii) in the case of notice by
United States mail, certified or registered, postage prepaid, return receipt
requested, upon receipt thereof, or (iii) in the case of notice by such
facsimile, upon confirmation of receipt thereof, provided such transmission is
promptly further confirmed in writing by either of the methods set forth in
clause (i) or (ii), in each case addressed to the following Person at its





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<PAGE>   40
respective address set forth below or at such other address as such Person may
from time to time designate by written notice to the other Persons listed
below:

 If to Lessor:                   First Security Bank, N.A.
                                 79 South Main Street
                                 Salt Lake City, Utah  84111
                                 Attention:             Corporate Trust Services
                                 Fax No.:               (801) 246-5053
                                 Confirmation No.:      (801) 246-5630

                                 With copies to Owner Participant.

 If to Owner Participant:        Dreyfus Service Corporation
                                 c/o Mellon Financial Services Corporation #4
                                 One Mellon Bank Center, Suite 4444
                                 Pittsburgh, Pennsylvania  15258-0001
                                 Attention:             President
                                 Fax No.:               (412) 234-5062
                                 Confirmation No.:      (412) 234-5061

                                 With copies to:

                                 Dreyfus Service Corporation
                                 200 Park Avenue
                                 New York, New York 10166
                                 Attention:             William V. Healey
                                 Facsimile:             (212) 922-6880
                                 Confirmation No.:      (212) 922-6760

                                 [AMSOUTH LEASING CORPORATION
                                 1900 FIFTH AVENUE NORTH
                                 8TH FLOOR
                                 BIRMINGHAM, ALABAMA 35203
                                 ATTENTION:             PRESIDENT
                                 FACSIMILE:             (205) 307-4124
                                 CONFIRMATION NO.: (205) 326-5780]





                                     35
<PAGE>   41
 If to the Indenture Trustee:    The First National Bank of Chicago
                                 One First National Plaza, Suite 0126
                                 Chicago, Illinois  60670-0126
                                 Attention: Corporate Trust Services Division
                                                        (GATC Trust No. 96-1)
                                 Fax No.:               (312) 407-1708
                                 Confirmation No.:      (312) 407-1892

 If to Lessee:                   General American Transportation Corporation
                                 500 West Monroe Street
                                 Chicago, Illinois  60661
                                 Attention:             Treasurer
                                                        (GATC Trust No. 96-1)
                                 Fax No.:               (312) 621-6645
                                 Confirmation No.:      (312) 621-6200

Section 21.   Concerning the Indenture Trustee.

              Section 21.1    Limitation of the Indenture Trustee's
Liabilities.  Notwithstanding any provision herein or in any of the Operative
Agreements to the contrary, the Indenture Trustee's obligation to take or
refrain from taking any actions, or to use its discretion (including, but not
limited to, the giving or withholding of consent or approval and the exercise
of any rights or remedies under such Operative Agreements), and any liability
therefor, shall, in addition to any other limitations provided herein or in the
other Operative Agreements, be limited by the provisions of the Indenture,
including, but not limited to, Article VI thereof.

              Section 21.2    Right, Title and Interest of the Indenture
Trustee Under Lease.  It is understood and agreed that the right, title and
interest of the Indenture Trustee in, to and under this Lease and the Rent due
and to become due hereunder shall by the express terms granting and conveying
the same be subject to the interest of Lessee in and to the Equipment.

Section 22.   Purchase Options; Renewal Options.

              Section 22.1    Early Purchase Option.  Provided that no Lease
Default pursuant to Sections 14(a), 14(b), 14(g) or 14(h) or Lease Event of
Default shall have occurred and be continuing either at the time of the notice
described below or on the Early Purchase Date (unless (i) Lessor shall have
waived such Lease Event of Default or Lease Default solely for the purpose of
this Section 22.1, (ii) in the case of a Lease Event of Default under Section
14(c), 14(d), 14(e), 14(f) or 14(i), Lessee shall have properly made a Special
Purchase Defeasance and after giving effect to the purchase described below, no
such Lease Event of Default shall be continuing or (iii) in the case of a Lease
Event of Default under Section 14(g) or 14(h), Lessee





                                     36
<PAGE>   42
shall have obtained a final, nonappealable order of a United States court
having appropriate bankruptcy jurisdiction over Lessee which (x) authorizes
such purchase and (y) is in form and substance satisfactory to Lessor and
Indenture Trustee) and Lessee shall have duly given the notice required by the
next succeeding sentence, Lessee shall have the right and, upon the giving of
such notice, the obligation to purchase any or all of the Units in a Basic
Group then leased hereunder (as specified in such notice) on the Early Purchase
Date for such Units at a price equal to the Early Purchase Price of such Units,
provided that if Lessee elects to purchase some but less than all of the Units
in any Functional Group, Lessee shall exercise such purchase with respect to at
least 25 Units, no fewer than 25 Units shall remain in such Functional Group as
a result of such purchase and the determination as to which Units are to be
purchased shall be made on a random or other basis (in each case reasonably
acceptable to Lessor) without discrimination based on maintenance status,
operating condition of the Units in question or otherwise and such notice shall
describe such manner in which Lessee proposes to determine the Units in such
Functional Group which will be purchased.  Lessee shall give Lessor written
notice not less than 90 days prior to the Early Purchase Date for the related
Units of its election to exercise the purchase option provided for in this
Section 22.1, which notice shall be irrevocable.  Payment of the Early Purchase
Price, together with all other amounts due and owing by Lessee under the
Operative Agreements, with respect to such Units, including, without
limitation, all unpaid Basic Rent therefor due and payable on or prior to the
Early Purchase Date (exclusive of any in advance Basic Rent due on such date)
and any Make-Whole Amount with respect to the Equipment Notes then being
prepaid, shall be made on the Early Purchase Date at the place of payment
specified in Section 3.6 hereof in immediately available funds against delivery
of a Bill of Sale transferring and assigning to Lessee all right, title and
interest of Lessor in and to such Units on an "as-is" "where-is" basis and
containing a warranty against Lessor's Liens.  [AMSOUTH: PROVIDED, HOWEVER,
THAT LESSEE SHALL HAVE THE OPTION OF SPECIFYING IN SUCH NOTICE UNDER THIS
SECTION 22.1 ITS ELECTION TO DEFER PAYMENT OF THE DEFERRED PORTION OF THE EARLY
PURCHASE PRICE FOR SUCH UNITS IN THREE (3) INSTALLMENTS IN THE AMOUNTS SET
FORTH ON SCHEDULE 6 TO THE PARTICIPATION AGREEMENT ON THE DEFERRED PORTION
PAYMENT DATES, WHICH DEFERRED PORTION (i) MAY BE PREPAID BY LESSEE AT ANY TIME
IN WHOLE AND (ii) WILL BE SECURED IN FAVOR OF LESSOR BY A PERFECTED FIRST
PRIORITY SECURITY INTEREST IN THE APPLICABLE UNITS PURSUANT TO A SECURITY
AGREEMENT IN FORM AND SUBSTANCE REASONABLY SATISFACTORY TO LESSOR; AND
PROVIDED, FURTHER, THAT THE PORTION OF THE EARLY PURCHASE PRICE PAYABLE BY
LESSEE ON THE EARLY PURCHASE DATE IN THE EVENT OF ANY SUCH ELECTION BY LESSEE,
UNDER ANY CIRCUMSTANCES AND IN ANY EVENT, TOGETHER WITH OTHER AMOUNTS OF
SUPPLEMENTAL RENT PAID BY LESSEE ON SUCH DATE WILL BE AT LEAST SUFFICIENT TO
PAY IN FULL, AS OF THE DATE OF PAYMENT THEREOF, THE AGGREGATE UNPAID PRINCIPAL
OF, THE MAKE WHOLE AMOUNT IF ANY, AND ALL UNPAID INTEREST OF THE EQUIPMENT
NOTES ISSUED IN RESPECT OF SUCH UNITS AND ALL OTHER AMOUNTS OWED BY LESSEE
UNDER THE OPERATIVE AGREEMENTS WITH RESPECT TO SUCH UNITS AND PROVIDED,
FURTHER, THAT LESSEE MAY NOT ELECT TO PAY INSTALLMENTS IF IT HAS ELECTED TO
EXERCISE ITS OPTION UNDER CLAUSE (ii) OF THE NEXT PARAGRAPH.]  Lessor shall not
be required to make any other representation or warranty as to the condition of
such Units or any other matters, and may specifically disclaim any such
representations or warranties.  In the event of any such purchase and receipt
by Lessor of all of the amounts provided in this Section 22.1, the obligation
of





                                     37
<PAGE>   43
Lessee to pay Basic Rent hereunder for such Units shall cease and the Lease
Term for such Units shall end.

         If the Lessee elects to exercise the purchase option provided for in
this Section 22.1, the Lessee shall, as the purchase price therefor, in the
sole discretion of the Lessee, either (i) pay the Early Purchase Price, as
specified in the paragraph above, with respect to such Units, together with all
other amounts due and owing by the Lessee under the Operative Agreements, or
(ii) pay the difference between the Early Purchase Price and the portion of the
outstanding principal amount of the Equipment Notes which relates to such Units
as of the Early Purchase Date and assume on a full recourse basis, and
indemnify the Lessor against, all of the Owner Trustee's obligations under the
Indenture in respect of such portion of the indebtedness evidenced by such
Equipment Notes; provided, that, following such assumption, the purchased Units
shall remain subject to the lien of a separate indenture similar to the
Indenture pursuant to Section 3.06 of the Indenture.  The Lessee will make the
payments required by foregoing clause (i) or assume such portion of the
indebtedness evidenced by the Equipment Notes which relates to such Units as
provided in foregoing clause (ii) on the Early Purchase Date in immediately
available funds against delivery of a bill of sale transferring and assigning
to the Lessee all right, title and interest of the Lessor in and to the Units
on an "as-is" "where-is" basis and containing a warranty against Lessor's
Liens.  In such event, the costs of preparing the bill of sale and all other
documentation relating to such purchase and the costs of any necessary filings
related thereto will be borne by the Lessee.  If the Lessee shall fail to
fulfill its obligations under this second paragraph of Section 22.1, all of the
Lessee's obligations under the Lease and the Operative Agreements, including,
without limitation, the Lessee's obligation to pay installments of Rent, with
respect to the Units in question shall continue.

              Section 22.2    Election to Retain or Return Equipment at End of
Basic or Renewal Term.  Not less than 180 days prior to the end of the Basic
Term, the end of any Fixed Rate Renewal Term or the end of any Fair Market
Renewal Term, Lessee shall give Lessor irrevocable written notice of its
decision to return or retain any or all of the Units at the end of the Basic
Term or such Renewal Term, provided that if Lessee elects to retain less than
all of the Units in a Functional Group, Lessee must return at least 25 Units
from such Functional Group to Lessor and the determination as to which Units
are to be retained shall be made on a random or other basis (in each case
reasonably acceptable to Lessor) without discrimination based on maintenance
status, operating condition of the Units in question or otherwise, and Lessee
shall describe in such notice such manner in which it proposes to determine the
Units in such Functional Group which will be retained.  If Lessee elects to
retain some or all of the Units, Lessee shall comply with Section 22.3 and/or
22.4 hereof, as it may elect in accordance with the provisions thereof
including the notice requirements stated therein.  If Lessee fails to give the
180 days' notice required by this Section 22.2, Lessee shall be deemed to have
irrevocably elected to return all of the Units at the end of the Basic Term or
the applicable Renewal Term, as the case may be, in accordance with Section 6.





                                     38
<PAGE>   44
              Section 22.3    Purchase Options.  Provided that no Lease Default
pursuant to Sections 14(a), 14(b), 14(g) or 14(h) or Lease Event of Default
shall have occurred and be continuing either at the time of notice or the
expiration of the Lease Term (unless (i) Lessor shall have waived such Lease
Event of Default or Lease Default solely for the purpose of this Section 22.3,
(ii) in the case of a Lease Event of Default under Section 14(c), 14(d), 14(e),
14(f) or 14(i), Lessee shall have properly made a Special Purchase Defeasance
and after giving effect to the purchase described below, no such Lease Event of
Default shall be continuing or (iii) in the case of a Lease Event of Default
under Section 14(g) or 14(h), Lessee shall have obtained a final, nonappealable
order of a United States court having appropriate bankruptcy jurisdiction over
Lessee which (x) authorizes such purchase and (y) is in form and substance
satisfactory to Lessor and Indenture Trustee) and Lessee shall have duly given
the notice required by Section 22.2 and by the next succeeding sentence of this
Section 22.3, Lessee shall have the right and, upon the giving of such notice
under this Section 22.3, the obligation to purchase any or all of the Units (as
specified in such notice, and subject to the minimum number of Units and the
criteria for selection of such Units referred to in Section 22.1) either (x) at
the expiration of the Basic Term at a price equal to the Basic Term Purchase
Price of such Units or (y) at the expiration of the Basic Term or any Renewal
Term at a price equal to the Fair Market Sales Value of such Units.  Lessee
shall give Lessor written notice not less than 90 days prior to the end of the
Basic Term, the Fixed Rate Renewal Term or the Fair Market Renewal Term, as the
case may be, of its election to exercise the purchase option provided for in
this Section 22.3 (but in any event subject to the minimum number of Units
referred to in Section 22.1), which notice shall be irrevocable.  Payment of
the purchase price, together with all other amounts due and owing by Lessee
under the Operative Agreements, shall be made at the place of payment specified
in Section 3.6 hereof in immediately available funds against delivery of a Bill
of Sale transferring and assigning to Lessee all right, title and interest of
Lessor in and to such Units on an "as-is" "where-is" basis and containing a
warranty against Lessor's Liens.  Lessor shall not be required to make any
other representation or warranty as to the condition of such Units or any other
matters, and may specifically disclaim any such representations or warranties.

              Section 22.4    Renewal Options.  Provided that no Lease Default
pursuant to Sections 14(a), 14(b), 14(g) or 14(h) or Lease Event of Default
shall have occurred and be continuing either at the time of notice or the
expiration of the Lease Term (unless Lessor shall have waived such Lease Event
of Default or Lease Default solely for the purpose of this Section 22.4) and
Lessee shall have duly given the notice required by Section 22.2, Lessee shall
have the right and, upon the giving of a notice under this Section 22.4 as
below provided, the obligation to lease pursuant to this Lease any or all of
the Units (as specified in such notice, and subject to the minimum number of
Units and the criteria for selection of such Units referred to in Section 22.1)
at the expiration of the Basic Term or any applicable Renewal Term which Lessee
has not elected to purchase pursuant to Section 22.3, which obligation may be
fulfilled by Lessee electing to renew this Lease under either of the following
Section 22.4(a) or (b):

              (a)       Fixed Rate.  Lessee may give Lessor written notice not
less than 90 days prior to the end of the Basic Term (or, in the circumstances
described in the fourth sentence of





                                     39
<PAGE>   45
this Section 22.4(a), the then Fixed Rate Renewal Term) that Lessee elects to
renew this Lease under this Section 22.4(a) with respect to any or all of the
Units (as specified in such notice, and subject to the minimum number of Units
and the criteria for selection of such Units referred to in Section 22.1) then
leased hereunder, for a term of one or more years as Lessee shall specify in
such notice (the "Fixed Rate Renewal Term"), but in no event longer than the
Outside Fixed Renewal Date, which notice shall be irrevocable.  In such event,
promptly following such notice, a determination in accordance with Section 22.5
shall be made of the date such that (1) the period from the Closing Date to
such date would not exceed 80% of the useful life of such Units from and after
the Closing Date, and (2) the Fair Market Sales Value (determined without
regard to inflation or deflation) on such date would not be less than 20% of
the Equipment Cost of such Units.  Such date shall thereafter be the latest
date to which this Lease may be renewed pursuant to this Section 22.4(a) (the
"Outside Fixed Renewal Date").  Lessee shall promptly following the
determination of the Outside Fixed Renewal Date give Lessor written notice of
the term (the "Fixed Rate Renewal Term") which Lessee selects for its initial
renewal under this Section 22.4(a), which shall be (i) in the case of the Basic
Group designated as Group I, five years from the end of the Basic Term and (ii)
in the case of the Basic Group designated as Group II, two years from the end
of the Basic Term [AMSOUTH: ONE OR MORE YEARS AS LESSEE SHALL SELECT], but in
no event longer than the Outside Fixed Renewal Date.  If Lessee selects a Fixed
Rate Renewal Term such that the period following such term until the Outside
Fixed Renewal Date is longer than one year, then Lessee may elect one or more
further renewals of one or more years pursuant to this Section 22.4(a) so long
as no such term extends beyond the Outside Fixed Renewal Date.  The Basic Rent
for each Unit during any Fixed Rate Renewal Term (the "Fixed Rent") shall be
75% of the average of the semiannual Basic Rent installments payable hereunder
for such Unit during the Basic Term, payable semiannually in arrears.  Each
Fixed Rate Renewal Term shall commence immediately upon the expiration of the
Basic Term or the preceding Fixed Rate Renewal Term, as the case may be.

              (b)       Fair Market.  Lessee may give Lessor written notice not
less than 90 days prior to the end of the Basic Term, a Fixed Rate Renewal Term
or a Fair Market Renewal Term (subject to the limitations otherwise provided in
this Section 22.4(b)) that Lessee elects to renew this Lease under this Section
22.4(b) with respect to any or all of the Units (as specified in such notice,
and subject to the minimum number of Units and the criteria for selection of
such Units referred to in Section 22.1) then leased hereunder for a term of one
or more years as Lessee shall specify in such notice (the "Fair Market Renewal
Term"), which notice shall be irrevocable.  The Basic Rent for the Units leased
during the Fair Market Renewal Term shall be the Fair Market Rental Value
thereof, payable semiannually in arrears.  The Fair Market Renewal Term shall
commence immediately upon the expiration of the Base Term or the preceding
Fixed Rate Renewal Term or Fair Market Renewal Term, as the case may be.

              Section 22.5    Appraisal.  Promptly following Lessee's written
notice pursuant to Section 22.2 of its election to retain any Units at the end
of the Basic Term or a Renewal Term, as the case may be, Lessor and Lessee
shall determine the remaining useful life (based on the actual condition of a
reasonable sampling of such Units and determined pursuant to the appraisal





                                     40
<PAGE>   46
procedure set forth in the definition of Fair Market Sales Value) and the Fair
Market Sales Value and Fair Market Rental Value of the Units to be retained, in
each case assuming the Units are in the condition required by this Lease.

              Section 22.6    Stipulated Loss Value and Termination Value
During Renewal Term.  All of the provisions of this Lease, other than Section
10, shall be applicable during any renewal term for such Units, except as
specified in the next sentence.  During any Renewal Term, the Stipulated Loss
Value and Termination Value of any Unit shall be determined on the basis of the
Fair Market Sales Value of such Unit as of the first day of such Renewal Term,
reduced in equal monthly increments to the Fair Market Sales Value of such Unit
as of the last day of such Renewal Term; provided that in no event during any
Fixed Rate Renewal Term shall the Stipulated Loss Value and Termination Value
of any Unit be less than 20% of the Equipment Cost of such Unit.

Section 23.   Limitation of Lessor's Liability.

              It is expressly agreed and understood that all representations,
warranties and undertakings of Lessor hereunder (except as expressly provided
herein) shall be binding upon Lessor only in its capacity as Owner Trustee
under the Trust Agreement and in no case shall First Security Bank, N.A. be
personally liable for or on account of any statements, representations,
warranties, covenants or obligations stated to be those of Lessor hereunder,
except that Lessor (or any successor Owner Trustee) shall be personally liable
for its gross negligence or wilful misconduct and for its breach of its
covenants, representations and warranties contained herein to the extent
covenanted or made in its individual capacity.

Section 24.   Investment of Security Funds.

              Any moneys received by Lessor or the Indenture Trustee pursuant
to Section 12.2 which are required to be paid to Lessee after completion of
repairs to be made pursuant to Section 12.2 or pursuant to Section 11.4(a) or
11.5, as the case may be, until paid to Lessee as provided in Section 11.4(a),
11.5 or 12.2 or the curing of a Lease Default or Lease Event of Default or as
otherwise applied as provided herein or in the Trust Agreement and Indenture,
shall be invested at the risk and expense of Lessee in Specified Investments by
Lessor (unless the Indenture shall not have been discharged, in which case, by
the Indenture Trustee as provided in Section 6.04(b) of the Indenture) from
time to time as directed by telephone (and confirmed promptly thereafter in
writing) by Lessee if such investments are reasonably available for purchase.
There shall be promptly remitted to Lessee, so long as no Lease Default
relating to Section 14(a), (b), (g) or (h) or Lease Event of Default shall have
occurred and be continuing, any gain (including interest received) realized as
the result of any such investment (net of any fees, commissions and other
expenses, if any, incurred in connection with such  investment) and Lessee will
promptly pay to Lessor or the Indenture Trustee, as the case may be, on demand,
the amount of any loss realized as the result of any such investment (together
with any fees, commissions and other expenses, if any, incurred in connection
with such investment), such





                                     41
<PAGE>   47
amount to be disposed of in accordance with the terms of the Trust Agreement
and the Indenture.

Section 25.   Miscellaneous.

              Section 25.1    Governing Law; Severability.  This Lease, and any
extensions, amendments, modifications, renewals or supplements hereto shall be
governed by and construed in accordance with the internal laws and decisions of
the State of New York; provided, however, that the parties shall be entitled to
all rights conferred by any applicable Federal statute, rule or regulation.
Whenever possible, each provision of this Lease shall be interpreted in such
manner as to be effective and valid under applicable law, but if any provision
of this Lease shall be prohibited by or invalid under the laws of any
jurisdiction, such provision, as to such jurisdiction, shall be ineffective to
the extent of such prohibition or invalidity, without invalidating the
remainder of such provision or the remaining provisions of this Lease in any
other jurisdiction.

              Section 25.2    Execution in Counterparts.  This Lease may be
executed in any number of counterparts, each executed counterpart constituting
an original and in each case such counterparts shall constitute but one and the
same instrument; provided, however, that to the extent that this Lease
constitutes chattel paper (as such term is defined in the Uniform Commercial
Code) no security interest in this Lease may be created through the transfer or
possession of any counterpart hereof other than the counterpart bearing the
receipt therefor executed by the Indenture Trustee on the signature page
hereof, which counterpart shall constitute the only "original" hereof for
purposes of the Uniform Commercial Code.

              Section 25.3    Headings and Table of Contents; Section
References.  The headings of the sections of this Lease and the Table of
Contents are inserted for purposes of convenience only and shall not be
construed to affect the meaning or construction of any of the provisions
hereof.  All references herein to numbered sections, unless otherwise
indicated, are to sections of this Lease.

              Section 25.4    Successors and Assigns.  This Lease shall be
binding upon and shall inure to the benefit of, and shall be enforceable by,
the parties hereto and their respective permitted successors and assigns.

              Section 25.5    True Lease.  It is the intent of the parties to
this Lease that it will be a true lease and not a "conditional sale," and that
Lessor shall at all times be considered to be the owner of each Unit which is
the subject of this Lease for the purposes of all Federal, state, city and
local income taxes or for franchise taxes measured by income, and that this
Lease conveys to Lessee no right, title or interest in any Unit except as
lessee.  Nothing contained in this Section 25.5 shall be construed to limit
Lessee's use or operation of any Unit or constitute a representation, warranty
or covenant by Lessee as to tax consequences.





                                     42
<PAGE>   48
              Section 25.6    Amendments and Waivers.  No term, covenant,
agreement or condition of this Lease may be terminated, amended or compliance
therewith waived (either generally or in a particular instance, retroactively
or prospectively) except by an instrument or instruments in writing executed by
each party hereto and except as may be permitted by the terms of the Indenture.

              Section 25.7    Survival. All warranties, representations,
indemnities and covenants made by either party hereto, herein or in any
certificate or other instrument delivered by such party or on the behalf of any
such party under this Lease, shall be considered to have been relied upon by
the other party hereto and shall survive the consummation of the transactions
contemplated hereby on the Closing Date regardless of any investigation made by
either such party or on behalf of either such party, and to the extent having
accrued and not been paid or relating to or otherwise arising in connection
with the transactions contemplated by the Operative Agreements during the Lease
Term, shall survive the expiration or other termination of this Lease or any
other Operative Agreement.

              Section 25.8    Business Days.  If any payment is to be made
hereunder or any action is to be taken hereunder on any date that is not a
Business Day, such payment or action otherwise required to be made or taken on
such date shall be made or taken on the immediately succeeding Business Day
with the same force and effect as if made or taken on such scheduled date and
as to any payment (provided any such payment is made on such succeeding
Business Day) no interest shall accrue on the amount of such payment from and
after such scheduled date to the time of such payment on such next succeeding
Business Day.

              Section 25.9    Directly or Indirectly.  Where any provision in
this Lease refers to action to be taken by any Person, or which such Person is
prohibited from taking, such provision shall be applicable whether such action
is taken directly or indirectly by such Person.

              Section 25.10    Incorporation by Reference.  The payment
obligations set forth in Sections 7.1 and 7.2 of the Participation Agreement
are hereby incorporated by reference.





                                     43
<PAGE>   49
              IN WITNESS WHEREOF, Lessor and Lessee have caused this Lease to
be duly executed and delivered on the day and year first above written.


                                     Lessor:

                                     First Security Bank, N.A., not in its
                                     individual capacity except as otherwise
                                     expressly provided but solely as Owner
                                     Trustee


                                     By:  
                                         -----------------------------------
                                     Name:
                                     Title:
                                     

                                     Lessee:

                                     General American Transportation Corporation



                                     By:
                                         -----------------------------------
                        
                                     Name:
                                     Title





                                   
<PAGE>   50
State of                    )
                            )  SS
County of                   )


             On this ____ day of August, 1996, before me personally appeared
_________________________, to me personally known, who being by me duly sworn,
say that he is _________________________ of First Security Bank, N.A., that
said instrument was signed on such date on behalf of said corporation by
authority of its Board of Directors, and he acknowledged that the execution of
the foregoing instrument was the free act and deed of said corporation.



                                        ---------------------------------------
                                        Notary Public


[Notarial Seal]

My commission expires:



State of Illinois     )
                      )  SS
County of Cook        )


              On this ___ day of August, 1996, before me personally appeared
_________________________, to me personally known, who being by me duly sworn,
say that he is the _________________________ of General American Transportation
Corporation, that said instrument was signed on such date on behalf of said
corporation by authority of its Board of Directors, and he acknowledged that
the execution of the foregoing instrument was the free act and deed of said
corporation.


                                        ---------------------------------------
                                        Notary Public


[Notarial Seal]





                                     45
<PAGE>   51
My commission expires:





                                   
<PAGE>   52
                                                                       EXHIBIT A

                          LEASE SUPPLEMENT NO. _______
                             (GATC TRUST NO. 96-1)


           This Lease Supplement No. ___, dated as of _________, between First
Security Bank, N.A., a national banking association, not in its individual
capacity but solely as Owner Trustee under the Trust Agreement ("Lessor"), and
General American Transportation Corporation, a New York corporation ("Lessee");

                                  Witnesseth:

           Lessor and Lessee have heretofore entered into that certain
Equipment Lease Agreement (GATC Trust No. 96-1) dated as of August 28, 1996
(the "Lease").  The terms used herein are used with the meanings specified in
the Lease.

           The Lease provides for the execution and delivery of one or more
Lease Supplements substantially in the form hereof for, among other things, the
purpose of particularly describing all or a portion of the Units of Equipment
to be leased to Lessee under the Lease.

           Now, Therefore, in consideration of the premises and other good and
sufficient consideration, and pursuant to Section 2 of the Lease, Lessor and
Lessee hereby agree as follows:

           1.   Lessor hereby delivers and leases to Lessee, and Lessee hereby
accepts and leases from Lessor, under the Lease as herein supplemented, the
Units described in Schedule 1 hereto.

           2.   All of the terms and provisions of the Lease are hereby
incorporated by reference in this Lease Supplement to the same extent as if
fully set forth herein.

           3.   To the extent that this Lease Supplement constitutes chattel
paper (as such term is defined in the Uniform Commercial Code) no security
interest in this Lease Supplement may be created through the transfer or
possession of any counterpart hereof other than the counterpart bearing the
receipt therefor executed by the Indenture Trustee on the signature page
hereof, which counterpart shall constitute the only "original" hereof for
purposes of the Uniform Commercial Code.

           4.   This Lease Supplement shall be governed by and construed in
accordance with the internal laws and decisions of the State of New York;
provided, however, that the parties shall be entitled to all rights conferred
by any applicable Federal statute, rule or regulation.

           5.   This Lease Supplement may be executed in any number of
counterparts, each executed counterpart constituting an original but all
together one and the same instrument.





                                      A-1
<PAGE>   53
                IN WITNESS WHEREOF, Lessor and Lessee have caused this Lease
Supplement to be duly executed as of the day and year first above written and
to be delivered as of the date first above written.

                                     First Security Bank, N.A., not in its
                                     individual capacity but solely as Owner
                                     Trustee


                                     By:
                                         --------------------------------------
                                     Name:
                                     Title:


                                     General American Transportation Corporation

 
                                     By:
                                         --------------------------------------
                                     Name:
                                     Title:





                                      A-2
<PAGE>   54
State of          )
                  )  SS
County of         )


              On this ____ day of August, 1996, before me personally appeared
__________________, to me personally known, who being by me duly sworn, say
that he is ________________________ of First Security Bank, N.A., that said
instrument was signed on such date on behalf of said corporation by authority
of its Board of Directors, and he acknowledged that the execution of the
foregoing instrument was the free act and deed of said corporation.




                                        ---------------------------------------
                                        Notary Public



[Notarial Seal]

My commission expires:



State of Illinois      )
                       )  SS
County of Cook         )


              On this ____ day of August, 1996, before me personally appeared
_________ _____________, to me personally known, who being by me duly sworn,
say that he is _____________ of General American Transportation Corporation,
that said instrument was signed on such date on behalf of said corporation by
authority of its Board of Directors, and he acknowledged that the execution of
the foregoing instrument was the free act and deed of said corporation.



                                        ---------------------------------------
                                        Notary Public

[Notarial Seal]

My commission expires:
<PAGE>   55

                                                                      Appendix A
                                                         Participation Agreement
                                                       Equipment Lease Agreement
                                          Trust Indenture and Security Agreement
                                                                 Trust Agreement
                                                           (GATC Trust No. 96-1)

                                  DEFINITIONS

General Provisions

         The following terms shall have the following meanings for all purposes
of the Operative Agreements referred to below, unless otherwise defined in an
Operative Agreement or the context thereof shall otherwise require and such
meanings shall be equally applicable to both the singular and the plural forms
of the terms herein defined.  In the case of any conflict between the
provisions of this Appendix A and the provisions of the main body of any
Operative Agreement, the provisions of the main body of such Operative
Agreement shall control the construction of such Operative Agreement.

         Unless the context otherwise requires, (i) references to agreements
shall be deemed to mean and include such agreements as the same may be amended,
supplemented and otherwise modified from time to time, and (ii) references to
parties to agreements shall be deemed to include the permitted successors and
assigns of such parties.

Defined Terms

         "AAR" shall mean the Association of American Railroads or any
successor thereto.

         "Affiliate" of any Person shall mean any other Person which directly
or indirectly controls, or is controlled by, or is under a common control with,
such Person.  The term "control" means the possession, directly or indirectly,
of the power to direct or cause the direction of the management and policies of
a Person, whether through the ownership of voting securities, by contract or
otherwise, and the terms "controlling" and "controlled" shall have meanings
correlative to the foregoing.

         "After-Tax Basis" shall mean, with respect to any payment received or
accrued by any Person, that the amount of such payment is supplemented by a
further payment or payments so that the sum of all such payments, after
reduction for all Taxes payable by such Person imposed by any taxing authority,
shall be equal to the payment due to such Person.

         "Alternative  Minimum Tax" shall mean the alternative minimum tax
imposed under Section 55 of the Code.





                                      -1-
<PAGE>   56
         "Appraisal" shall have the meaning specified in Section 4.3(a) of the
Participation Agreement.

         "Average Life Date" shall mean, with respect to an Equipment Note, the
date which follows the prepayment date or, in the case of an Equipment Note not
being prepaid, the date of such determination, by a period equal to the
Remaining Weighted Average Life of such Equipment Note.

         "Bankruptcy Code" shall mean the United States Bankruptcy Reform Act
of 1978, as amended from time to time, 11 U.S.C. Section 101 et. seq.

         "Basic Group" shall mean each of the two basic groups of Equipment so
designated in Schedule 1 to the Participation Agreement.

         "Basic Prospectus" shall mean the prospectus contained in the
Registration Statement when the most recent post- effective amendment thereto
became effective.

         "Basic Rent" shall mean, with respect to any Unit, all rent payable by
the Lessee to the Lessor pursuant to Section 3.2 of the Lease for the Basic
Term for such Unit, and all rent payable pursuant to Section 22.4 of the Lease
for any Renewal Term for such Unit.

         "Basic Term" shall have the meaning specified in Section 3.1 of the
Lease.

         "Basic Term Commencement Date" shall mean August 28, 1996.

         "Basic Term Expiration Date" shall mean (i) with respect to the Units
related to Lease Supplement No. I, August 28, 20__, and (ii) with respect to
the Units related to Lease Supplement No. II, August 28, 20__.

         "Basic Term Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 7 to the
Participation Agreement applicable to such Unit and the Equipment Cost for such
Unit.

         "Beneficial Interest" shall mean the interest of the Owner Participant
under the Trust Agreement.

         "Bill of Sale" shall mean the full warranty bill of sale, dated the
Closing Date or the date that any Replacement Unit is subjected to the Lease,
from Lessee to Owner Trustee covering the Units delivered on the Closing Date
or such Replacement Unit, as the case may be.

         "Business Day" shall mean any day other than a Saturday, Sunday or a
day on which commercial banking institutions are authorized or required by law,
regulation or executive order to be closed in New York, New York, Chicago,
Illinois, Pittsburgh, Pennsylvania, Birmingham, Alabama, the city and state in
which the principal corporate trust office of the Owner Trustee





                                      -2-
<PAGE>   57
is located, or, until the Lien of the Indenture has been discharged, the city
and state in which the principal corporate trust office of the Indenture
Trustee is located.

         "Certificateholder" means the Person in whose name a Pass Through
Certificate is registered in the register for Pass Through Certificates of a
particular series.

         "Claims" shall have the meaning specified in Section 7.2 of the
Participation Agreement.

         "Closing Date" shall have the meaning specified in Section 2.1 of the
Participation  Agreement.

         "Code" shall mean the Internal Revenue Code of 1986, as amended from
time to time.

         "Commitment" with respect to the Owner Participant, shall have the
meaning specified in Section 2.2(a) to the Participation Agreement and with
respect to the Loan Participant, shall have the meaning specified in Section
2.2(b) to the Participation Agreement.

         "Debt Rate" shall mean as of the date of determination, a rate equal
to the rate of interest per annum borne by the Equipment Notes then outstanding
(computed on the basis of a 360-day year of twelve 30-day months).

         [AMSOUTH:  "DEFERRED PORTION" SHALL MEAN THAT PORTION OF THE EARLY
PURCHASE PRICE, THE PAYMENT OF WHICH MAY BE DEFERRED BY THE LESSEE PAST THE
APPLICABLE EARLY PURCHASE DATE FOR SUCH UNIT OR UNITS, AS SET FORTH IN SCHEDULE
6 TO THE PARTICIPATION AGREEMENT.]

         [AMSOUTH:  "DEFERRED PORTION PAYMENT DATES" SHALL MEAN THE DEFERRED
PORTION PAYMENT DATES SPECIFIED ON SCHEDULE 6 TO THE PARTICIPATION AGREEMENT
FOR A RELATED BASIC GROUP OF UNITS.]

         "Determination Date" shall mean the 28th day of any calendar month.

         "Early Purchase Date" shall mean the early purchase date specified on
Schedule 6 to the Participation Agreement for a related Basic Group of Units.

         "Early Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 6 to the
Participation Agreement for the Basic Group to which such Unit belongs and the
Equipment Cost for such Unit.

         "Equipment" shall mean collectively those items of railroad rolling
stock described in the Lease Supplements and the Indenture Supplements,
together with any and all accessions, additions, improvements and replacements
from time to time incorporated or installed in any item thereof which are the
property of the Owner Trustee pursuant to the terms of a Bill of Sale or the
Lease, and "Unit" shall mean individually the various items thereof.





                                      -3-
<PAGE>   58
         "Equipment Cost" shall mean, for each Unit, the purchase price
therefor paid by the Owner Trustee to the Lessee pursuant to Section 2 of the
Participation Agreement and as set forth in Schedule 1 to the Participation
Agreement with respect to such Unit.  Notwithstanding anything in the Operative
Agreements to the contrary, the Equipment Cost for any Replacement Unit shall
be deemed to be the Equipment Cost or deemed Equipment Cost of the Unit it
replaced.

         "Equipment Notes" shall mean the Equipment Notes, each to be
substantially in the form therefor set forth in Section 2.01 of the Indenture,
issued by the Owner Trustee pursuant to Section 2.02 of the Indenture, and
authenticated by the Indenture Trustee, in principal amounts, maturities and
bearing interest at the rates and payable as provided in Section 2.02 of the
Indenture and secured as provided in the Granting Clause of the Indenture, and
shall include any Equipment Notes issued in exchange therefor or replacement
thereof pursuant to Section 2.07 or 2.08 of the Indenture.  A "related"
Equipment Note, when used with respect to any Unit or Units of Equipment, shall
mean one of the Equipment Notes issued with respect to the Lease Supplement
under which such Unit or Units of Equipment is or are leased.

         "ERISA" shall mean the Employee Retirement Income Security Act of
1974, as amended from time to time, or any successor law.

         "Event of Loss" shall have the meaning specified in Section 11.1 of
the Lease.

         "Excepted Property" shall mean (i) all indemnity payments (including,
without limitation, payments pursuant to Section 7 of the Participation
Agreement and payments under the Tax Indemnity Agreement) to which the Owner
Participant, the Owner Trustee, as trustee or in its individual capacity, or
any of their respective successors, permitted assigns, directors, officers,
employees, servants and agents is entitled pursuant to the Operative
Agreements, (ii) any right, title or interest of the Owner Trustee, as trustee
or in its individual capacity, or the Owner Participant to any payment which by
the terms of Section 17 of the Lease or any corresponding payment under Section
3.3 of the Lease shall be payable to or on behalf of the Owner Trustee, as
trustee or in its individual capacity, or to the Owner Participant, as the case
may be, (iii) any insurance proceeds payable under insurance maintained by the
Owner Trustee, as trustee or in its individual capacity, or the Owner
Participant pursuant to Section 12.5 of the Lease, (iv) any insurance proceeds
payable to or on behalf of the Owner Trustee, as trustee or in its individual
capacity, or to the Owner Participant, under any public liability insurance
maintained by Lessee pursuant to Section 12 of the Lease (which shall include
the amount of any self-insured retention paid by the Lessee) or by any other
Person, (v) Transaction Costs or other amounts or expenses paid or payable to,
or for the benefit of Owner Trustee, as trustee or in its individual capacity,
or Owner Participant pursuant to the Participation Agreement or the Trust
Agreement, (vi) all right, title and interest of Owner Participant or Owner
Trustee, as trustee or in its individual capacity, in or relating to any
portion of the Units and any other property (tangible or intangible), rights,
titles or interests to the extent any of the foregoing has been released from
the Lien of the Indenture pursuant to the terms thereof, (vii) upon termination
of the Indenture pursuant to the terms thereof with respect to any Unit, all
remaining amounts which shall have been paid or are payable by Lessee and
calculated on the basis of Stipulated Loss Value,





                                      -4-
<PAGE>   59
(viii) any rights of the Owner Participant or the Owner Trustee, as trustee and
in its individual capacity, to demand, collect, sue for, or otherwise receive
and enforce payment of the foregoing amounts, (ix) any amount payable to the
Owner Participant by any Transferee as the purchase price of the Owner
Participant's interest in the Trust Estate in compliance with the terms of the
Participation Agreement and the Trust Agreement and (x) the respective rights
of the Owner Trustee, as trustee and in its individual capacity, or the Owner
Participant to the proceeds of and interest on the foregoing.

        "Fair Market Renewal Term" shall have the meaning specified in Section
22.4 of the Lease.

        "Fair Market Rental Value" or "Fair Market Sales Value" with respect
to any Unit of Equipment shall mean the cash rent or cash price obtainable for
such Unit in an arm's length lease or sale between an informed and willing
lessee or purchaser under no compulsion to lease or purchase, as the case may
be, and an informed and willing lessor or seller, under no compulsion to lease
or sell, as the case may be, as the same shall be specified by agreement
between Lessor and Lessee.  If the parties are unable to agree upon a Fair
Market Rental Value and/or a Fair Market Sales Value within 30 days after
delivery of notice by Lessee pursuant to Section 22.2 of the Lease, or
otherwise where such determination is required, within a reasonable period of
time, such value shall be determined by appraisal.  Lessee will within 15 days
after such 30-day period provide Lessor the name of an appraiser that would be
satisfactory to Lessee, and Lessor and Lessee will consult with the intent of
selecting a mutually acceptable appraiser.  If a mutually acceptable appraiser
is selected, the Fair Market Rental Value or the Fair Market Sales Value, as
the case may be, shall be determined by such appraiser and Lessee shall bear
the cost thereof.  If Lessee and Lessor are unable to agree upon a single
appraiser within such 15-day period, two independent qualified appraisers, one
chosen by Lessee and one chosen by Lessor shall jointly determine such value
and Lessor shall bear the cost of the appraiser selected by Lessor and Lessee
shall bear the cost of the appraiser selected by Lessee.  If such appraisers
cannot agree on the amount of such value within 15 days of appointment, one
independent qualified appraiser shall be chosen by the American Arbitration
Association.  All three appraisers shall make a determination within a period
of 15 days following appointment, and shall promptly communicate such
determination in writing to Lessor and Lessee.  If there shall be a panel of
three appraisers, the three appraisals shall be averaged and such average shall
be the Fair Market Rental Value or Fair Market Sales Value, as the case may be.
The determination made shall be conclusively binding on both the Lessor and
Lessee.  If there shall be a panel of three appraisers, Lessee and Lessor shall
equally share the cost of the third appraiser.  If such appraisal is pursuant
to Section 6.1(e) or is in connection with the exercise of remedies set forth
in Section 15 of the Lease, Lessee shall pay the costs of such appraisal.
Notwithstanding any of the foregoing, for the purposes of Section 15 of the
Lease, the Fair Market Rental Value or the Fair Market Sales Value, as the case
may be, shall be zero with respect to any Unit if Lessor is unable to recover
possession of such Unit in accordance with the terms of paragraph (b) of
Section 15.1 of the Lease.





                                      -5-
<PAGE>   60
         "Final Prospectus" shall mean the prospectus supplement relating to
the Pass Through Certificates that was first filed pursuant to Rule 424(b)
promulgated pursuant to the Securities Act of 1933, as amended, together with
the Basic Prospectus.

         "Fixed Rate Renewal Term" shall have the meaning specified in Section
22.4(a) of the Lease.

         "FRA" shall mean the Federal Railroad Administration or any successor
thereto.

         "Functional Group" shall mean each and all of the various groups of
Units so designated in Schedule 1 to the Participation Agreement.

         "Hazardous Substances" shall mean any hazardous or toxic substances,
materials or wastes, including, but not limited to, those substances,
materials, and wastes listed in the United States Department of Transportation
Hazardous Materials Table (49 CFR 172.101) or by the Environmental Protection
Agency as hazardous substances (40 CFR part 302) and amendments thereto, or
such substances, materials and wastes which are or become regulated under any
applicable local, state or federal law or the equivalent under applicable
foreign laws including, without limitation, any materials, waste or substance
which is (a) petroleum, (b) asbestos, (c) polychlorinated biphenyls, (d)
defined as a "hazardous material," "hazardous substance" or "hazardous waste"
under applicable local, state or federal law or the equivalent under applicable
foreign laws, (e) designated as a "hazardous substance" pursuant to Section 311
of the Clean Water Act, (f) defined as "hazardous waste" pursuant to Section
1004 of the Resource Conservation and Recovery Act, or (g) defined as
"hazardous substances" pursuant to Section 101 of the Comprehensive
Environmental Response, Compensation, and Liability Act.

         "Income Tax" shall have the meaning specified in Section 7.1(l) of the
Participation Agreement.

         "Indemnified Person" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Indenture" or "Trust Indenture" shall mean the Trust Indenture and
Security Agreement (GATC Trust No. 96-1), dated as of August 28, 1996 between
the Owner Trustee, in the capacities described therein, and the Indenture
Trustee.  The term "Indenture" shall include, except where the context
otherwise requires, each Indenture Supplement entered into pursuant to the
terms of the Indenture.

         "Indenture Default" shall mean an Indenture Event of Default or an
event which with notice or the lapse of time or both would become an Indenture
Event of Default.

         "Indenture Estate" shall have the meaning specified in the Granting
Clause of the Indenture.





                                      -6-
<PAGE>   61
         "Indenture Event of Default" shall have the meaning specified in
Section 4.01 of the Indenture.

         "Indenture Investment" shall mean any obligation issued or guaranteed
by the United States of America or any of its agencies for the payment of which
the full faith and credit of the United States of America is pledged.

         "Indenture Supplement" shall mean an Indenture Supplement (GATC Trust
No. 96-1) dated the Closing Date or the date that any Replacement Unit is
subjected to the lien and security interest of the Indenture, substantially in
the form of Exhibit A to the Indenture, between the Owner Trustee, in the
capacities described therein, and the Indenture Trustee, covering the Units
delivered on the Closing Date or such Replacement Unit, as the case may be.  A
"related" Indenture Supplement, when used with respect to any Unit or Units of
Equipment, shall mean the Indenture Supplement under which such Unit or Units
of Equipment is or are included in the Indenture Estate.

         "Indenture Trustee" shall mean The First National Bank of Chicago, a
national banking association, as trustee under the Indenture and its successors
thereunder.

         "Indenture Trustee Agreements" shall mean the Operative Agreements to
which the Indenture Trustee is or will be a party.

         "Interchange Rules" shall mean the interchange rules or supplements
thereto of the Mechanical Division of the Association of American Railroads, as
the same may be in effect from time to time.

         "Investment Banker" shall mean an independent investment banking
institution of national standing appointed by Lessee or, if the Indenture
Trustee does not receive notice of such appointment at least ten days prior to
a scheduled prepayment date or if a Lease Event of Default under the applicable
Lease shall have occurred and be continuing, appointed by the Indenture
Trustee.

         "Late Rate" shall mean the lesser of 2% over the Debt Rate and the
maximum interest rate from time to time permitted by law.

         "Lease" or "Lease Agreement" or "Equipment Lease" shall mean the
Equipment Lease Agreement (GATC Trust No. 96- 1), relating to the Equipment,
dated as of August 28, 1996, between the Owner Trustee, in the capacities
described therein, as Lessor, and the Lessee.  The term "Lease" shall, except
where the context otherwise requires, include each Lease Supplement entered
into pursuant to the terms of the Lease.

         "Lease Default" shall mean a Lease Event of Default or an event which
with notice or lapse of time or both would become a Lease Event of Default.





                                      -7-
<PAGE>   62
         "Lease Event of Default" shall mean a Lease Event of Default under the
Lease as specified in Section 14 thereof.

         "Lease Supplement" shall mean a Lease Supplement (GATC Trust No.
96-1), dated the Closing Date or the date that any Replacement Unit is
subjected to the Lease, substantially in the form of Exhibit A to the Lease,
between the Lessor and the Lessee, covering the Units delivered on the Closing
Date or such Replacement Unit, as the case may be.  A "related" Lease
Supplement, when used with respect to any Unit or Units of Equipment, shall
mean the Lease Supplement under which such Unit or Units of Equipment is or are
leased.

         "Lease Term" shall mean, with respect to any Unit, the Basic Term
applicable to such Unit and any Renewal Term applicable to such Unit then in
effect.

         "Lessee" shall mean General American Transportation Corporation, a New
York corporation, and its successors and permitted assigns.

         "Lessee Agreements" shall mean the Operative Agreements to which
Lessee is or will be a party.

         "Lessor" shall have the meaning specified in the recitals to the
Lease.

         "Lessor's Liens" means any Lien affecting, on or in respect of the
Equipment, the Lease or the Trust Estate arising as a result of (i) claims
against Lessor (in its individual capacity or as Owner Trustee) or the Owner
Participant, not related to the transactions contemplated by the Operative
Agreements, or (ii) acts or omissions of the Lessor (in its individual capacity
or as Owner Trustee) or the Owner Participant not related to the transactions
contemplated by the Operative Agreements or in breach of any covenant or
agreement of such Person set forth in any of the Operative Agreements, or (iii)
taxes imposed against the Lessor (in its individual capacity or as Owner
Trustee) or the Owner Participant or the Trust Estate which are not indemnified
against by the Lessee pursuant to the Participation Agreement or under the Tax
Indemnity Agreement.

         "Lien" shall mean any mortgage, pledge, security interest, lien,
encumbrance, lease, disposition of title or other charge of any kind on
property.

         "Limited Use Property" shall have the meaning set forth in Rev. Proc.
76-30, 1976-2 C.B. 647.

         "Loan Participant" shall mean and include each registered holder from
time to time of an Equipment Note issued under the Indenture, including, so
long as it holds any Equipment Notes issued thereunder, the Pass Through
Trustee under the Pass Through Trust Agreement.

         "Majority In Interest" as of a particular date of determination shall
mean with respect to any action or decision of the holders of the Equipment
Notes, the holders of more than 50% in aggregate unpaid principal amount of the
Equipment Notes, if any, then outstanding which are





                                      -8-
<PAGE>   63
affected by such decision or action, excluding any Equipment Notes held by the
Owner Participant or the Lessee or an Affiliate of the Owner Participant or the
Lessee unless all Equipment Notes are so held.

         "Make-Whole Amount" shall mean, with respect to the principal amount
of any Equipment Note to be prepaid on any prepayment date, the amount which
the Investment Banker determines as of the third Business Day prior to such
prepayment date to equal the product obtained by multiplying (a) the excess, if
any, of (i) the sum of the present values of all the remaining scheduled
payments of principal and interest from the prepayment date to maturity of such
Equipment Note, discounted semi-annually on each August 28 and February 28 at a
rate equal to the Treasury Rate plus 0.5%, based on a 360-day year of twelve
30-day months, over (ii) the aggregate unpaid principal amount of such
Equipment Note plus any accrued but unpaid interest thereon by (b) a fraction
the numerator of which shall be the principal amount of such Equipment Note to
be prepaid on such prepayment date and the denominator of which shall be the
aggregate unpaid principal amount of such Equipment Note; provided that the
aggregate unpaid principal amount of such Equipment Note for the purpose of
clause (a)(ii) and (b) of this definition shall be determined after deducting
the principal installment, if any, due on such prepayment date.

         "Modification" shall have the meaning specified in Section 9.2 of the
Lease.

         "Net Economic Return" shall mean the pattern of earnings within a 10%
variance during any calendar year, net after-tax book yield and total after-tax
cash flow [AMSOUTH: (BUT NOT THE PATTERN OF EARNINGS)] expected by the original
Owner Participant with respect to the Equipment (both through the Early
Purchase Date and the Basic Term Expiration Date), utilizing the multiple
investment sinking fund method of analysis and the same assumptions as used by
such Owner Participant in making the computations of Basic Rent, Stipulated
Loss Value, Termination Value, Basic Term Purchase Price and Early Purchase
Price initially set forth in Schedules 3, 4, 6 and 7 to the Participation
Agreement.

         "Non-Severable Modification" shall mean any Modification that is not
readily removable without impairing the value, utility or remaining useful life
of the Equipment or any Unit immediately prior to removal of such modification,
other than in a de minimis nature.

         "Officer's Certificate" shall mean a certificate signed (i) in the
case of a corporation by the President, any Vice President, the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary of such
corporation, (ii) in the case of a partnership by the Chairman of the Board,
the President or any Vice President, the Treasurer or an Assistant Treasurer of
a corporate general partner, and (iii) in the case of a commercial bank or
trust company, the Chairman or Vice Chairman of the Executive Committee or the
Treasurer, any Trust Officer, any Vice President, any Executive or Senior or
Second or Assistant Vice President, or any other officer or assistant officer
customarily performing the functions similar to those performed by the persons
who at the time shall be such officers, or to whom any corporate trust matter
is referred because of his knowledge of and familiarity with the particular
subject.





                                      -9-
<PAGE>   64
         "Operative Agreements" shall mean the Participation Agreement, the
Bill of Sale, the Trust Agreement, the Pass Through Trust Agreement, the Pass
Through Trust Supplements, the Pass Through Certificates, the Equipment Notes,
the Lease, the Lease Supplements, the Indenture, the Indenture Supplements, the
Tax Indemnity Agreement and the Underwriting Agreement.

         "Outside Fixed Renewal Date" shall have the meaning specified in
Section 22.4(a) of the Lease.

         "Owner Participant" shall mean Dreyfus Service Corporation, a New York
corporation [AMSOUTH LEASING CORPORATION, AN ALABAMA BANKING CORPORATION], and
its successors and permitted assigns.

         "Owner Participant Agreements" shall mean the Operative Agreements to
which the Owner Participant is or will be a party.

         "Owner Trustee" shall mean First Security Bank, N.A., a national
banking association, not in its individual capacity but solely as Owner Trustee
under the Trust Agreement and its successors thereunder.

         "Owner Trustee Agreements" shall mean the Operative Agreements to
which the Owner Trustee, either in its individual or fiduciary capacity, is or
will be a party.

         "Parent" means GATX Corporation, a New York corporation, and its
successors and assigns.

         "Participants" shall mean the Loan Participant and the Owner
Participant.

         "Participation Agreement" shall mean the Participation Agreement (GATC
Trust No. 96-1) dated as of August 28, 1996, among the Lessee, the Pass Through
Trustee, the Owner Participant, the Owner Trustee and the Indenture Trustee.

         "Pass Through Certificates" shall mean the Pass Through Certificates
issued pursuant to each of the Pass Through Trust Supplements and the Pass
Through Trust Agreement.

         "Pass Through Trust Agreement" shall mean the Pass Through Trust
Agreement, dated as of August 1, 1992, between the Lessee and the Pass Through
Trustee.

         "Pass Through Trust Supplement" shall mean either of Trust Supplement
No. 6 dated as of August 28, 1996 or Trust Supplement No. 7 dated as of August
28, 1996, each between the Lessee and the Pass Through Trustee, each of which
supplements the Pass Through Trust Agreement (i) by creating a separate trust
for the holders of certain Pass Through Certificates, (ii) by authorizing the
issuance of such Pass Through Certificates and (iii) by establishing the terms
of such Pass Through Certificates.





                                      -10-
<PAGE>   65
         "Pass Through Trustee" shall mean The First National Bank of Chicago,
a national banking association, in its capacity as trustee under the Pass
Through Trust Agreement, as supplemented by the Pass Through Trust Supplements,
and each other person which may from time to time be acting as successor
trustee under the Pass Through Trust Agreement, as supplemented by the Pass
Through Trust Supplement.

         "Pass Through Trustee Agreements" shall mean the Operative Agreements
to which the Pass Through Trustee is or will be a party.

         "Permitted Liens" with respect to the Equipment and each Unit thereof
shall mean: (i) the interests of the Lessee and the Owner Trustee under the
Lease and the Lease Supplements; (ii) the interest of the Lessee and any
sublessee as provided in any sublease permitted pursuant to Section 8.3 of the
Lease; (iii) any Liens thereon for taxes, assessments, levies, fees and other
governmental and similar charges not due and payable or the amount or validity
of which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (iv) any Liens of mechanics, suppliers, materialmen, laborers,
employees, repairmen and other like Liens arising in the ordinary course of
Lessee's (or if a sublease is then in effect, any sublessee's) business
securing obligations which are not due and payable or the amount or validity of
which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (v) the Lien and security interest granted to the Indenture
Trustee under and pursuant to the Indenture, and the respective rights of the
Loan Participant, the Indenture Trustee, the Owner Participant and the Owner
Trustee under the Operative Agreements; (vi) Liens arising out of any judgment
or award against the Lessee (or any sublessee permitted pursuant to Section 8.3
of the Lease) with respect to which an appeal or proceeding for review is being
presented in good faith and for the payment of which adequate reserves have
been provided as required by generally accepted accounting principles or other
appropriate provisions have been made and with respect to which there shall
have been secured a stay of execution pending such appeal or proceeding for
review and there exists no material risk of sale, forfeiture, loss, or loss of
or interference with the use or possession of any Unit or any interest therein
or interference with the payment of Rent, and (vii) salvage rights of insurers
under insurance policies maintained pursuant to Section 12 of the Lease.

         "Permitted Subleases" shall have the meaning specified in Section 8.3
of the Lease.

         "Person" shall mean an individual, partnership, limited liability
company, corporation, trust, association or unincorporated organization, and a
government or agency or political subdivision thereof.

         "Preliminary Final Prospectus" shall mean any preliminary prospectus
supplement to the Basic Prospectus which describes the Pass Through
Certificates and the offering thereof and is used prior to the filing of the
Final Prospectus, together with the Basic Prospectus.





                                      -11-
<PAGE>   66
         "Premium Termination Date" shall mean (i) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. I, August 28,
20__, (ii) in the case of the Series of Equipment Notes designated as Series B
for Lease Supplement No. I, August 28, 20__, (iii) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. II, August 28,
20__, and (iv) in the case of the Series of Equipment Notes designated as
Series B for Lease Supplement No. II August 28, 20__.

         "Pricing Date" shall mean the date on which the Underwriting Agreement
is executed by the Lessee and the Underwriters.

         "Refunding Date" shall have the meaning specified in Section 10.2(a)
of the Participation Agreement.

         "Registration Statement" shall mean the registration statement filed
by the Lessee (File Number 33-64697), including incorporated documents,
exhibits and financial statements, as amended at the time of the Closing Date,
including any post-effective amendment thereto which has become effective prior
to the Closing Date.

         "Related Indemnitee Group" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Related Transaction" means the additional leveraged lease transaction
with respect to which the Pass Through Trustee has agreed to acquire the
equipment notes to be issued pursuant to the participation agreement dated as
of August 28, 1996 among the Lessee, the Pass Through Trustee, AmSouth Leasing
Corporation, the Owner Trustee and the Indenture Trustee.

         "Remaining Weighted Average Life" shall mean, with respect to any date
of prepayment or any date of determination of any Equipment Note, the number of
days equal to the quotient obtained by dividing (a) the sum of the products
obtained by multiplying (i) the amount of each then remaining principal payment
on such Equipment Note by (ii) the number of days from and including the
prepayment date or date of determination to but excluding the scheduled payment
date of such principal payment by (b) the unpaid principal amount of such
Equipment Note.

         "Renewal Term" shall mean, with respect to any Unit, any term in
respect of which the Lessee shall have exercised its option to renew the Lease
for such Unit pursuant to Section 22.4 thereof, including any Fixed Rate
Renewal Term or Fair Market Renewal Term.

         "Rent" shall mean all Basic Rent and Supplemental Rent.

         "Rent Payment Date" or "Payment Date" shall mean each August 28 and
February 28 of each year occurring during the Lease Term, commencing February
28, 1997, provided that if any such date shall not be a Business Day, then
"Rent Payment Date" or "Payment Date" shall mean the next succeeding Business
Day.





                                      -12-
<PAGE>   67
         "Replacement Unit" shall mean a covered hopper car or tank car, as the
case may be, which shall have been leased under the Lease pursuant to Section
11.4 of the Lease.

         "Required Modification" shall have the meaning specified in Section
9.1 of the Lease.

         "Responsible Officer" shall mean, with respect to the subject matter
of any covenant, agreement or obligation of any party contained in any
Operative Agreement, the President, or any Vice President, Assistant Vice
President, Treasurer, Assistant Treasurer or other officer, who in the normal
performance of his operational responsibility would have knowledge of such
matters and the requirements with respect thereto.

         "Scheduled Closing Date" shall have the meaning specified in Section
2.7 of the Participation Agreement.

         "Security" shall have the same meaning as in Section 2(1) of the
Securities Act of 1933, as amended.

         "Series" shall mean each of the two series of Equipment Notes for each
Lease Supplement so designated in Exhibit B to the Indenture.

         "Severable Modification" shall mean any Modification that is readily
removable without causing material damage to the Equipment or any Unit and
without diminishing the value, utility or useful life of such Unit below the
value, utility or useful life of such Unit immediately prior to such
Modification, assuming that such Unit was then in the condition required to be
maintained by the terms of the Lease, other than in a de minimis nature.

         "Special Purchase Defeasance" shall mean, with respect to any election
by Lessee to purchase Units under Section 22.1 or 22.3 of the Lease, the
deposit by Lessee with the Indenture Trustee prior to the date as of which
Lessor shall have declared the Lease to be in default as a result of a Lease
Event of Default under Section 14(c), 14(d), 14(e), 14(f) or 14(i) of the Lease
(in circumstances where such Lease Event of Default occurs after the date of
Lessee's notice to purchase under Sections 22.1 or 22.3 but before the Early
Purchase Date or the expiration of the Basic Term or any Renewal Term, as
applicable), of an amount sufficient to pay (i) the Early Purchase Price,
together with all other amounts due and owing by the Lessee under the Operative
Agreements, with respect to those Units which Lessee has elected to purchase on
the Early Purchase Date under Section 22.1 of the Lease, or (ii) the Basic Term
Purchase Price or Fair Market Sales Value, as the case may be, together with
all other amounts due and owing by the Lessee under the Operative Agreements,
with respect to those Units which Lessee has elected to purchase at the
expiration of the Basic Term or any Renewal Term, as applicable, under Section
22.3 of the Lease.  All amounts deposited by Lessee with the Indenture Trustee
in connection with a Special Purchase Defeasance shall be held and invested by
the Indenture Trustee in accordance with Section 6.04(b) of the Indenture
pending consummation of the purchase of the related Units on the Early Purchase
Date or upon the expiration of the Basic Term or the related Renewal Term, as
applicable.





                                      -13-
<PAGE>   68
         "Specified Investments" shall mean (i) direct obligations of the
United States of America and agencies thereof for which the full faith and
credit of the United States is pledged, (ii) obligations fully guaranteed by
the United States of America, (iii) certificates of deposit issued by, or
bankers' acceptances of, or time deposits with, any bank, trust company or
national banking association incorporated or doing business under the laws of
the United States of America or one of the States thereof having combined
capital and surplus and retained earnings of at least $500,000,000 (including
the Indenture Trustee or Owner Trustee if such conditions are met), and (iv)
repurchase agreements with any financial institution having a combined capital
and surplus of at least $750,000,000 fully collateralized by obligations of the
type described in clauses (i) and (iii) above; provided that if all of the
above investments are unavailable, the entire amount to be invested may be used
to purchase Federal funds from an entity described in (iii) above; and provided
further that no investment shall be eligible as a "Specified Investment" unless
the final maturity or date of return of such investment is 91 days or less from
the date of purchase thereof.

         "STB" shall mean the Surface Transportation Board of the United States
Department of Transportation or any successor thereto.

         "Stipulated Loss Value" for any Unit as of any date of determination
shall mean the amount determined by multiplying the Equipment Cost for such
Unit by the percentage set forth in Schedule 4 to the Participation Agreement
opposite the Rent Payment Date or the Determination Date, as applicable, on
which such Stipulated Loss Value is being determined for the Basic Group to
which such Unit belongs; provided that during any Renewal Term, "Stipulated
Loss Value" shall be determined as provided in Section 22.6 of the Lease.
Anything contained in the Lease or in the Participation Agreement to the
contrary notwithstanding, Stipulated Loss Value for such Unit (both before and
after any adjustment pursuant to Section 2.6 of the Participation Agreement)
will, under any circumstances and in any event, be an amount which, together
with any other amounts required to be paid by Lessee under the Lease in
connection with an Event of Loss, will be at least sufficient to pay in full as
of the date of payment thereof the aggregate unpaid principal of the Equipment
Notes issued in respect of such Unit, together with all unpaid interest and
Make-Whole Amount, if any, thereon accrued to the date on which such amount is
paid in accordance with the terms hereof and all other amounts then due to the
holders of the Equipment Notes.

         "Storage Period" shall have the meaning specified in Section 6.1(c)(i)
of the Lease.

         "Subsidiary" of any Person shall mean any corporation, association, or
other business entity of which more than 50% (by number of votes) of the voting
stock at the time outstanding shall at the time be owned, directly or
indirectly, by such Person or by any other corporation, association or trust
which is itself a Subsidiary within the meaning of this definition, or
collectively by such Person and any one or more such Subsidiaries.

         "Supplemental Rent" shall mean all amounts, liabilities and
obligations (other than Basic Rent) which the Lessee is obligated to pay under
the Operative Agreements to or on behalf of





                                      -14-
<PAGE>   69
any of the other parties thereto, including, but not limited to, Termination
Value and Stipulated Loss Value payments.

         "Taxes" shall have the meaning specified in Section 7.1(b) of the
Participation Agreement.

         "Tax Indemnitee" shall have the meaning specified in Section 7.1 of
the Lease.

         "Tax Indemnity Agreement" shall mean the Tax Indemnity Agreement dated
as of August 28, 1996 (GATC Trust No.  96-1) between the Lessee and the Owner
Participant.

         "Terminated Units" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Date" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Value" for any Unit as of any date of determination shall
mean the amount determined by multiplying the Equipment Cost for such Unit by
the percentage set forth in Schedule 4 to the Participation Agreement opposite
the Rent Payment Date or the Determination Date, as applicable, on which such
Termination Value is being determined for the Basic Group to which such Unit
belongs; provided that during any Renewal Term, "Termination Value" shall be
determined as provided in Section 22.6 of the Lease.  Anything contained in the
Lease or in the Participation Agreement to the contrary notwithstanding,
Termination Value for such Unit (both before and after any adjustment pursuant
to Section 2.6 of the Participation Agreement) will, under any circumstances
and in any event, be an amount which, together with any other amounts required
to be paid by Lessee under the Lease in connection with such termination, will
be at least sufficient to pay in full as of the date of payment thereof the
aggregate unpaid principal of the Equipment Notes issued in respect of such
Unit, together with all unpaid interest and Make-Whole Amount, if any, thereon
accrued to the date on which such amount is paid in accordance with the terms
thereof and all other amounts then due to the holders of the Equipment Notes.

         "Total Equipment Cost" shall mean the sum of the Equipment Costs for
each Unit.

         "Transaction Costs" shall have the meaning specified in Section 2.5(a)
of the Participation Agreement.

         "Transferee" shall have the meaning specified in Section 6.1(a) of the
Participation Agreement.

         "Treasury Rate" shall mean with respect to prepayment of each
Equipment Note, a per annum rate (expressed as a semiannual equivalent and as a
decimal and, in the case of United States Treasury bills, converted to a bond
equivalent yield), determined to be the per annum rate equal to the semiannual
yield to maturity for United States Treasury securities maturing on the Average
Life Date of such Equipment Note, as determined by interpolation between the
most recent weekly average yields to maturity for two series of United States
Treasury securities, (A)





                                      -15-
<PAGE>   70
one maturing as close as possible to, but earlier than, the Average Life Date
of such Equipment Note and (B) the other maturing as close as possible to, but
later than, the Average Life Date of such Equipment Note, in each case as
published in the most recent H.15(519) (or, if a weekly average yield to
maturity for United States Treasury securities maturing on the Average Life
Date of such Equipment Note is reported in the most recent H.15(519), as
published in H.15(519)).  H.15(519) means "Statistical Release H.15(519),
Selected Interest Rates," or any successor publication, published by the Board
of Governors of the Federal Reserve System.  The most recent H.15(519) means
the latest H.15(519) which is published prior to the close of business on the
third Business Day preceding the scheduled prepayment date.

         "Trust" shall have the meaning specified in the Trust Agreement.

         "Trust Agreement" shall mean that certain Trust Agreement (GATC Trust
No. 96-1), dated as of August 28, 1996, between the Owner Participant and the
Owner Trustee.

         "Trust Estate" shall have the meaning set forth in Section 2.2 of the
Trust Agreement.

         "Trustee" shall mean each of the Owner Trustee, the Indenture Trustee
or the Pass Through Trustee and "Trustees" shall mean the Owner Trustee,
Indenture Trustee and the Pass Through Trustee, collectively.

         "Underwriters" shall mean Morgan Stanley & Co. Incorporated and
Salomon Brothers Inc.

         "Underwriting Agreement" shall mean that certain Underwriting
Agreement between the Lessee and the Underwriters, pertaining to the sale of
the Pass Through Certificates.

         "Unit" shall mean each unit or item of Equipment.





                                      -16-

<PAGE>   1

                                                                     EXHIBIT 4.7




                                TRUST AGREEMENT


                          Dated as of August 28, 1996


                                    Between


           Dreyfus Service Corporation [AMSOUTH LEASING CORPORATION],
                               Owner Participant


                                      and


                           First Security Bank, N.A.,
                                 Owner Trustee



                         Covered Hoppers and Tank Cars

                              GATC Trust No. 96-1





                            
<PAGE>   2
\
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
||
<S>                  <C>                                                                                               <C>
ARTICLE I            DEFINITIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                     Section 1.1. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                     Section 1.2. Interpretation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

ARTICLE II           AUTHORITY; DECLARATION OF TRUST  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                     Section 2.1. Authority to Execute and Perform Various Documents  . . . . . . . . . . . . . . . .   1
                     Section 2.2. Declaration of Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2

ARTICLE III          DISTRIBUTIONS AND PAYMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
                     Section 3.1. Payments to the Indenture Trustee . . . . . . . . . . . . . . . . . . . . . . . . .   2
                     Section 3.2. Payments to the Owner Trustee; Other Parties  . . . . . . . . . . . . . . . . . . .   2
                     Section 3.3. Certain Distributions to the Owner Participant  . . . . . . . . . . . . . . . . . .   3
                     Section 3.4. Excepted Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
                     Section 3.5. Method of Payment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3

ARTICLE IV           CERTAIN DUTIES OF THE OWNER TRUSTEE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                     Section 4.1. Notice of Certain Events  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                     Section 4.2. Action Upon Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                     Section 4.3. Indemnification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
                     Section 4.4. No Duties Except as Specified . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                     Section 4.5. No Action Except Under Specified Agreements or Instructions . . . . . . . . . . . .   5
                     Section 4.6. Tax Returns; Records  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
                     Section 4.7. Absence of Certain Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
                     Section 4.8. Furnishing of Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6

ARTICLE V            THE OWNER TRUSTEE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
                     Section 5.1. Acceptance of Trusts and Duties . . . . . . . . . . . . . . . . . . . . . . . . . .   7
                     Section 5.2. No Representations or Warranties as to Equipment or Documents . . . . . . . . . . .   7
                     Section 5.3. No Segregation of Moneys; No Interest . . . . . . . . . . . . . . . . . . . . . . .   8
                     Section 5.4. Reliance; Advice of Counsel . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
                     Section 5.5. Not Acting in Individual Capacity . . . . . . . . . . . . . . . . . . . . . . . . .   8

ARTICLE VI           INDEMNIFICATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
                     Section 6.1. Indemnification of Trust Company  . . . . . . . . . . . . . . . . . . . . . . . . .   9
                     Section 6.2. Expenses  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
</TABLE>





                                      -i-
<PAGE>   3
<TABLE>
<S>                  <C>                                                                                               <C>
ARTICLE VII          TERMINATION OF TRUST AGREEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
                     Section 7.1. Termination of Trust Agreement  . . . . . . . . . . . . . . . . . . . . . . . . . .  10
                     Section 7.2. Termination at Option of the Owner Participant  . . . . . . . . . . . . . . . . . .  11

ARTICLE VIII         SUCCESSOR OWNER TRUSTEES, CO-OWNER TRUSTEES AND SEPARATE OWNER TRUSTEES  . . . . . . . . . . . .  11
                     Section 8.1. Resignation of the Owner Trustee; Appointment of Successor  . . . . . . . . . . . .  11
                     Section 8.2. Additional and Separate Trustees  . . . . . . . . . . . . . . . . . . . . . . . . .  13

ARTICLE IX           SUPPLEMENTS AND AMENDMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                     Section 9.1. Supplements and Amendments  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

ARTICLE X            MISCELLANEOUS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                     Section 10.1.         No Legal Title to Trust Estate in the Owner Participant  . . . . . . . . .  15
                     Section 10.2.         Sale of Accepted Equipment by the Owner Trustee is
                                           Binding  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                     Section 10.3.         Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                     Section 10.4.         Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                     Section 10.5.         Separate Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . .  16
                     Section 10.6.         Waivers, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
                     Section 10.7.         Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . . .  16
                     Section 10.8.         Transfer of Owner Participant's Interest . . . . . . . . . . . . . . . . .  16
                     Section 10.9.         Actions of the Owner Participants  . . . . . . . . . . . . . . . . . . . .  16
                     Section 10.10.        Headings; Table of Contents  . . . . . . . . . . . . . . . . . . . . . . .  16
                     Section 10.11.        Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
                     Section 10.12.        Benefit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
                     Section 10.13.        Performance by the Owner Participant . . . . . . . . . . . . . . . . . . .  17
                     Section 10.14.        Conflict with Operative Agreements . . . . . . . . . . . . . . . . . . . .  17
                     Section 10.15.        Limitation on Owner Participant's Liability. . . . . . . . . . . . . . . .  17
                     Section 10.16.        Identification of Trust  . . . . . . . . . . . . . . . . . . . . . . . . .  17
||
</TABLE>





                                     -ii-
<PAGE>   4
                                TRUST AGREEMENT

         This Trust Agreement is entered into as of August 28, 1996 between
Dreyfus Service Corporation, a New York corporation [AMSOUTH LEASING
CORPORATION, AN ALABAMA BANKING CORPORATION], (the "Owner Participant"), and
First Security Bank, N.A., a national banking association, (in its individual
capacity, "Trust Company," and otherwise not in its individual capacity but
solely as trustee hereunder, the "Owner Trustee").  In consideration of the
mutual agreements herein contained, the agreements contained in the other
Operative Agreements and the acceptance by Trust Company of the trusts hereby
created, and other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the parties hereto agree as follows:

                                   ARTICLE I
                                  DEFINITIONS

         Section 1.1.       Definitions.  The capitalized terms used in this
Trust Agreement have the meanings given in Appendix A unless otherwise defined
herein or unless the context otherwise requires.  For all purposes hereof, the
following terms shall have the following meanings:

         "Accepted Equipment" means all of the Accepted Units.

         "Accepted Unit" means each Unit that has been purchased by the Owner
Trustee pursuant to the Participation Agreement and any Replacement Unit.

         "Actual Knowledge" of Trust Company or the Owner Trustee means actual
knowledge of, including any written notices received by, a responsible officer
in the Corporate Trust Administration of Trust Company.

         Section 1.2.       Interpretation.  Unless otherwise indicated,
references in this Trust Agreement to Sections, subsections, paragraphs and
Appendices are to Sections, subsections, paragraphs and Appendices of this
Trust Agreement.  The terms "hereof," "herein," "hereby," "hereto" and
"hereunder" refer to this Trust Agreement, taken as a whole.  References to a
given agreement or instrument are references to such agreement or instrument as
originally entered into, as modified, amended, supplemented and restated
through the date as of which such reference is made.

                                   ARTICLE II
                        AUTHORITY; DECLARATION OF TRUST

         Section 2.1.       Authority to Execute and Perform Various Documents.
The Owner Participant hereby authorizes and directs the Owner Trustee to, and
the Owner Trustee agrees for the benefit of the Owner Participant that it will,
(i) execute and deliver the Participation





                            
<PAGE>   5
Agreement, (ii) on the Closing Date, upon receipt of the confirmation by the
Owner Participant pursuant to Section 2.4 of the Participation Agreement,
execute and deliver the Operative Agreements contemplated by the Participation
Agreement to be executed and delivered by the Owner Trustee on the Closing
Date, in the respective forms thereof in which delivered by the Owner
Participant to the Owner Trustee for execution and delivery, and to take the
other actions contemplated to be taken by the Owner Trustee on the Closing Date
in Section 2 of the Participation Agreement, (iii) execute and deliver any
other agreement, instrument or certificate contemplated by the Operative
Agreements as the Owner Participant from time to time may direct in writing,
(iv) subject to the terms of this Trust Agreement, exercise the rights (upon
written instructions received from the Owner Participant) and perform the
duties of the Owner Trustee under each of the documents, agreements,
instruments and certificates referred to in clauses (i) through (iii) of this
Section 2.1 as set forth in such documents, agreements, instruments and
certificates, and (v) subject to the terms of this Trust Agreement, take such
other action in connection with the foregoing as the Owner Participant may from
time to time direct in writing.

         Section 2.2.       Declaration of Trust.  The Trust Company hereby
declares that it will hold as Owner Trustee all estate, right, title and
interest of the Owner Trustee in and to the Accepted Equipment and the Owner
Trustee Agreements, and any other property contributed by the Owner Participant
pursuant to the terms of any of the Operative Agreements, including without
limitation all amounts of Rent, insurance proceeds and requisition, indemnity
or other payments of any kind, but specifically excluding Excepted Property
(collectively, the "Trust Estate"), upon the trusts set forth herein and for
the use and benefit of the Owner Participant as sole beneficiary, subject,
however, to the provisions of and the Lien created by the Indenture.

                                  ARTICLE III
                           DISTRIBUTIONS AND PAYMENTS

         Section 3.1.       Payments to the Indenture Trustee.  Until the Lien
of the Indenture shall have been discharged pursuant to the terms thereof, all
Basic Rent, Supplemental Rent, insurance proceeds and requisition or other
payments of any kind (other than payments constituting Excepted Property and
other than payments received from the Indenture Trustee) for or with respect to
any Accepted Unit payable to the Owner Trustee shall be payable directly to the
Indenture Trustee for distribution in accordance with the provisions of the
Indenture, and if any such amount or payment is received by the Owner Trustee,
such amount or payment upon receipt thereof shall be paid over to the Indenture
Trustee without deduction, set-off or adjustment of any kind for distribution
in accordance with the provisions of the Indenture.

         Section 3.2.       Payments to the Owner Trustee; Other Parties.  Any
payment of the type referred to in Section 3.1 (other than payments
constituting Excepted Property) received by the Owner Trustee after the
Indenture shall have been discharged pursuant to the terms thereof, any payment
received from the Indenture Trustee other than as specified in Section 3.4 and
any other amount received as part of the Trust Estate and for the application
or distribution of which no





                                      2
<PAGE>   6
provision is made herein shall be distributed forthwith upon receipt by the
Owner Trustee in the following order of priority: first, so much of such
payment as shall be required to reimburse the Owner Trustee for any expenses
not otherwise reimbursed as to which the Owner Trustee is entitled to be so
reimbursed pursuant to the provisions hereof shall be retained by the Owner
Trustee; second, so much of the remainder for which provision as to the
application thereof is contained in the Lease, any of the other Operative
Agreements or any of the other Owner Trustee Agreements shall be applied and
distributed in accordance with the terms of the Lease, such other Operative
Agreement or such other Owner Trustee Agreement, as the case may be; and third,
the balance, if any, shall be paid to the Owner Participant.

         Section 3.3.       Certain Distributions to the Owner Participant.
All amounts from time to time distributable by the Indenture Trustee to the
Owner Participant pursuant to the terms of the Indenture shall, if paid to the
Owner Trustee, be distributed by the Owner Trustee to the Owner Participant.

         Section 3.4.       Excepted Property.  Anything in this Trust
Agreement to the contrary notwithstanding, any amounts or payments constituting
Excepted Property received by the Owner Trustee shall be paid promptly by the
Owner Trustee to the Person to whom such amounts or payments are payable
pursuant to the terms of the Operative Agreements.

         Section 3.5.       Method of Payment.

                 (a)        All amounts payable to the Owner Participant or to
the Indenture Trustee pursuant to this Trust Agreement shall be paid by the
Owner Trustee, if to the Owner Participant, by transferring such amount in
immediately available funds to the account of the Owner Participant specified
in Schedule 2 to the Participation Agreement or, if to the Indenture Trustee,
in the manner specified in the Indenture.  The Owner Trustee shall pay such
amounts on the day received, or on the next succeeding Business Day if the
funds to be so paid shall not have been received by the Owner Trustee by 1:00
p.m. New York time, provided that the Owner Trustee shall use reasonable
efforts to invest overnight in Specified Investments at the direction and for
the benefit of the Owner Participant all funds received by it at or later than
1:00 p.m. New York time.

                 (b)        Notwithstanding the foregoing, the Owner Trustee
will pay, if so requested by the Owner Participant in writing, any or all
amounts in immediately available funds payable by the Owner Trustee hereunder
to the Owner Participant either (i) by crediting such amount or amounts to an
account or accounts maintained by the Owner Participant with Trust Company,
(ii) by payment to such account at such financial institution as the Owner
Participant may from time to time direct in writing or (iii) by mailing an
official bank check or checks in such amount or amounts payable to the Owner
Participant at such address as the Owner Participant may from time to time
designate in writing.





                                      3
<PAGE>   7
                                   ARTICLE IV
                      CERTAIN DUTIES OF THE OWNER TRUSTEE

         Section 4.1.       Notice of Certain Events.  In the event that the
Owner Trustee shall have Actual Knowledge of any Lease Default, Lease Event of
Default, Indenture Default, Indenture Event of Default or Event of Loss, the
Owner Trustee shall give prompt telephonic notice thereof (promptly confirmed
in writing) to the Owner Participant, the Lessee and the Indenture Trustee
unless such Lease Default, Lease Event of Default, Indenture Default, Indenture
Event of Default or Event of Loss, as the case may be, has been remedied before
the giving of such notice and the Owner Trustee has Actual Knowledge that such
Lease Default, Lease Event of Default, Indenture Default, Indenture Event of
Default or Event of Loss has been so remedied.  Subject to the terms of Section
4.3, the Owner Trustee shall take or refrain from taking such action with
respect thereto, not inconsistent with the provisions of the Operative
Agreements, with respect thereto as the Owner Trustee shall be instructed in
writing by the Owner Participant.

         Section 4.2.       Action Upon Instructions.  Subject to the terms of
Sections 4.1 and 4.3, upon the written instructions at any time and from time
to time of the Owner Participant, the Owner Trustee will take such of the
following actions as may be specified in such instructions: (i) give such
notice or direction or exercise such right, remedy or power under the Owner
Trustee Agreements with respect thereto or to any Accepted Equipment,
including, without limitation, the right to transfer, assign or convey the
Owner Trustee's interest in the Owner Trustee Agreements or any Accepted Unit,
or take such other action with respect to the Owner Trustee Agreements or any
Accepted Unit as shall be specified in such instructions; and (ii) after the
expiration or earlier termination of the Lease with respect to any Accepted
Unit, convey all of the Owner Trustee's right, title and interest in and to
such Accepted Unit to the Owner Participant or for such amount, on such terms
and to such purchaser or purchasers as shall be designated in such
instructions, or net lease such Accepted Unit as designated in such
instructions; provided, however, that if such instructions have not been
delivered to the Owner Trustee prior to the expiration of one year following
such expiration or earlier termination of the Lease, the Owner Trustee shall
transfer title to such right, title and interest to the Owner Participant.

         Section 4.3.       Indemnification.  The Owner Trustee shall not be
required to take or refrain from taking any action under Section 4.1 or 4.2
(other than the actions specified in the first sentence of Sections 3.1 and 4.1
and the last sentence of Section 4.4) unless the Owner Trustee shall have been
indemnified, in manner and form reasonably satisfactory to the Owner Trustee,
against any liability, fee, cost or expense (including, without limitation,
reasonable attorneys' fees) which may be incurred or charged in connection
therewith, other than any such liability, fee, cost or expense arising as a
result of any action or circumstance for which the Owner Trustee is answerable
or accountable pursuant to the third sentence of Section 5.1.  The Owner
Trustee shall not be required to take any action under any Operative Agreement
or any Owner Trustee Agreement (other than the actions specified in the first
sentence of Section 4.1





                                      4
<PAGE>   8
or in the second sentence of Section 4.4) if the Owner Trustee reasonably shall
determine, or shall have been advised by counsel, that such action is likely to
result in unindemnified personal liability to the Owner Trustee or is contrary
to the terms hereof or of any documents contemplated hereby to which the Owner
Trustee is a party, or otherwise contrary to law, and the Owner Trustee in such
case shall deliver promptly to the Owner Participant written notice of the
basis of its refusal to act.

         Section 4.4.       No Duties Except as Specified.  The Owner Trustee
shall not have any duty or obligation to manage, control, use, make any payment
in respect of, register, record, insure, inspect, sell, dispose of or otherwise
deal with any Accepted Unit or any other part of the Trust Estate, or to
otherwise take or refrain from taking any action under, or in connection with,
any Owner Trustee Agreement or any of the other Operative Agreements, except as
expressly provided by the terms of this Trust Agreement, the Indenture or the
Owner Trustee Agreements or in written instructions from the Owner Participant
received pursuant to Section 4.1 or 4.2; and no implied duties or obligations
shall be read into this Trust Agreement against the Owner Trustee.
Notwithstanding and without limiting the foregoing, Trust Company agrees that
it will promptly (without any right to indemnification hereunder) take all
action necessary to discharge any Lessor's Lien attributable to Trust Company
on any part of the Trust Estate or Indenture Estate.  Trust Company agrees to
indemnify, protect, save and keep harmless the Owner Participant from and
against any loss, cost or expense (including reasonable legal fees and
expenses) incurred by the Owner Participant as a result of the imposition or
enforcement of any such Lessor's Lien against the Accepted Units, any interest
herein or on the Trust Estate or the Indenture Estate resulting from the
Lessor's Liens attributable to Trust Company.

         Section 4.5.       No Action Except Under Specified Agreements or
Instructions.  The Owner Trustee shall have no right, power or authority to,
and the Owner Trustee agrees that it will not, manage, control, use, sell,
dispose of or otherwise deal with any Accepted Unit or any other part of the
Trust Estate except as (i) expressly provided by the terms of this Trust
Agreement, (ii) expressly required by the terms of any Owner Trustee Agreement
or (iii) expressly directed or authorized in written instructions from the
Owner Participant pursuant to Section 4.1 or 4.2.

         Section 4.6.       Tax Returns; Records.  The Owner Trustee shall be
responsible for the keeping of all appropriate books and records relating to
the receipt and disbursement of all money which it may receive or be entitled
to hereunder or under any agreement contemplated hereby.  The Owner Trustee
agrees at the expense of the Lessee to file an application with the Internal
Revenue Service for a taxpayer identification number with respect to the trust
created by this Trust Agreement.  The Owner Participant shall be responsible
for causing to be prepared all income tax returns required to be filed by the
Owner Participant.  The Owner Trustee shall be responsible for causing to be
prepared, at the request of the Owner Participant and the expense of the
Lessee, all income tax returns required to be filed with respect to the trusts
created hereby and shall execute and file such returns.  The Owner Trustee and
the Owner Participant, upon request, will furnish each other with all such
information as may be reasonably





                                      5
<PAGE>   9
required in connection with the preparation of such tax returns; provided that
the Owner Trustee shall send a completed copy of such return to the Owner
Participant not more than 60 nor less than 30 days prior to the due date of the
return (provided that the Owner Trustee shall have timely received all
necessary information to complete and deliver to the Owner Participant such
return).  The Owner Trustee shall keep copies of all returns delivered to or
filed by it.

         Section 4.7.       Absence of Certain Duties.  Except in accordance
with written instructions furnished pursuant to Sections 4.1 and 4.2, and
except as expressly provided in any Owner Trustee Agreement, and without
limiting the generality of Section 4.4, the Owner Trustee shall not have any
duty to (i) file, record or deposit any Operative Agreement or Owner Trustee
Agreement, including without limitation this Trust Agreement, or any other
document, or to maintain any such filing, recording or deposit, or to refile,
re-record or redeposit any such document, except that the Owner Trustee shall,
upon written request by the Lessee or the Owner Participant, sign and file such
documents as Lessee or the Owner Participant prepares as necessary to maintain
the filing and recordation for the Lease, any Lease Supplement, the Indenture
and any Indenture Supplement in the name of the Owner Trustee with the STB
pursuant to 49 U.S.C. Section 11301 of the Interstate Commerce Act or Registrar
General of Canada pursuant to Section 90 of the Railway Act of Canada, or as
otherwise required under applicable law, and to the extent that such documents
for that purpose are supplied by the Lessee pursuant to any of the Operative
Agreements, timely submit any and all such documents and reports with respect
to the Accepted Units which may from time to time be required by the STB, the
AAR, or any other authority having jurisdiction, (ii) obtain insurance with
respect to any Accepted Unit or to effect or maintain any such insurance, other
than to receive and promptly forward to the Owner Participant any notices,
policies, certificates or binders furnished to the Owner Trustee by the Lessee
or its insurance brokers, (iii) maintain or mark any Accepted Unit, (iv) pay or
discharge any tax, assessment or other governmental charge, or any Lien or
encumbrance of any kind, owing with respect to or assessed or levied against
any part of the Trust Estate, except as provided in Sections 4.4 or 5.1 hereof,
and Section 6.3 of the Participation Agreement (v) confirm, verify, investigate
or inquire into the failure to receive any reports or financial statements of
the Lessee, (vi) inspect the Accepted Equipment at any time, or ascertain or
inquire as to the performance or observance of any of the covenants of the
Lessee or any other Person under any Operative Agreement or Owner Trustee
Agreement with respect to any Accepted Unit or any other part of the Trust
Estate or (vii) manage, control, use, sell, dispose of or otherwise deal with
any Accepted Unit or any other part of the Trust Estate, or any part thereof,
except as provided in clauses (i), (ii) and (iii) of Section 4.5 or in Section
3.5(a).

         Section 4.8.       Furnishing of Documents.  The Owner Trustee will
furnish to the Owner Participant, promptly upon receipt thereof, duplicates or
copies of all reports, notices, requests, demands, opinions, certificates,
financial statements and any other instruments furnished to the Owner Trustee
under any Operative Agreement or any Owner Trustee Agreement, unless the Owner
Trustee shall have determined that the same already has been furnished to the
Owner Participant.





                                      6
<PAGE>   10
                                   ARTICLE V
                               THE OWNER TRUSTEE

         Section 5.1.       Acceptance of Trusts and Duties.  Trust Company
accepts the trusts hereby created and agrees to perform the same on the terms
of this Trust Agreement.  Trust Company also agrees to disburse all moneys
actually received by it constituting part of the Trust Estate pursuant to the
terms of this Trust Agreement.  Trust Company shall not be answerable or
accountable under any circumstances except (i) for its own willful misconduct
or gross negligence (including, without limitation, in connection with any
activities of the Owner Trustee in violation of Section 4.5), (ii) in the case
of the breach or inaccuracy of any of its representations or warranties
contained in any Operative Agreement given expressly in its individual capacity
and not in its capacity as a trustee hereunder, (iii) as arising from its
failure to perform obligations expressly undertaken by it in the penultimate
and last sentence of Section 4.4 hereof or expressly undertaken by it in its
individual capacity under the Participation Agreement, (iv) for any Taxes based
on or measured by any fees, commissions or compensation received by it for
acting as Owner Trustee in connection with any of the transactions contemplated
by the Operative Agreements or (v) for its failure to disburse or invest funds
in accordance with the terms hereof or the Lease or for any negligence or
willful misconduct of the Owner Trustee arising out of its obligations under
Sections 4.1, 4.6 or 8.2.

         Section 5.2.       No Representations or Warranties as to Equipment or
Documents.

                 (a)        NEITHER TRUST COMPANY NOR THE OWNER TRUSTEE MAKES
ANY REPRESENTATION OR WARRANTY, EITHER EXPRESS OR IMPLIED, AS TO THE DESIGN,
OPERATION OR CONDITION OF ANY UNIT OR ANY PART THEREOF, THE MERCHANTABILITY
THEREOF OR THE FITNESS THEREOF FOR ANY PARTICULAR PURPOSE, TITLE TO ANY UNIT OR
ANY PART THEREOF, THE QUALITY OF THE MATERIALS OR WORKMANSHIP THEREOF OR
CONFORMITY THEREOF TO SPECIFICATIONS, OR THE PRESENCE OR ABSENCE OF ANY LATENT
OR OTHER DEFECTS, WHETHER OR NOT DISCOVERABLE, except that Trust Company hereby
represents and warrants that (i) on the Closing Date for such Accepted Unit,
the Owner Trustee shall have received whatever title thereto was conveyed to it
by the Lessee and (ii) while a part of the Trust Estate, such Accepted Unit
shall be free and clear of Lessor's Liens attributable to it.

                 (b)        Neither Trust Company nor the Owner Trustee makes
any representation or warranty as to the validity or enforceability of any
Operative Agreement, or as to the correctness of any statement therein, except
to the extent that any such representation, warranty or statement is expressly
made therein or in any written certificate delivered pursuant thereto by the
Owner Trustee or Trust Company and except that Trust Company hereby represents
and warrants that this Trust Agreement has been duly executed and delivered by
Trust Company and each of the Owner Trustee Agreements has been or will be
executed and delivered by officers





                                      7
<PAGE>   11
of the Owner Trustee who are or will be duly authorized to execute and deliver
documents on its behalf, and that each of this Agreement and each of the other
Owner Trustee Agreements constitutes (assuming the due authorization,
execution, and delivery of this Agreement and each such other agreement by the
other parties thereto) the legal, valid and binding obligation of the Trust
Company (or the Owner Trustee if expressly stated therein) enforceable against
it in accordance with its terms except as limited by bankruptcy, insolvency,
reorganization or other similar laws or equitable principles of general
application to or affecting the enforcement of creditors rights generally from
time to time in effect.

         Section 5.3.       No Segregation of Moneys; No Interest.  Except as
required by Section 2.4 of the Participation Agreement, moneys received by the
Owner Trustee hereunder need not be segregated in any manner except to the
extent required by law, and such moneys may be deposited under such general
conditions as may be prescribed by law, and the Owner Trustee shall not be
liable for any interest thereon.

         Section 5.4.       Reliance; Advice of Counsel.  The Owner Trustee
shall not incur any liability to anyone in acting upon any signature,
instrument, notice, resolution, request, consent, order, certificate, report,
opinion, bond or other document or paper reasonably believed by it in good
faith to be genuine and reasonably believed by it in good faith to be signed by
the proper party or parties.  Any request, direction, order or demand of the
Owner Participant or the Lessee mentioned herein or in any other Operative
Agreement to which the Owner Trustee is a party shall be sufficiently evidenced
by an Officer's Certificate of the Owner Participant or the Lessee, as the case
may be.  The Owner Trustee may accept in good faith a certified copy of a
resolution of the Board of Directors or other governing body of any corporate
party as conclusive evidence that such resolution has been duly adopted by such
body and that the same is in full force and effect.  As to any fact or matter
the manner of ascertainment of which is not specifically prescribed herein, the
Owner Trustee may for all purposes hereof rely on an Officer's Certificate of
the relevant party as to such fact or matter, and such Officer's Certificate
shall constitute full protection to the Owner Trustee for any action taken or
omitted to be taken by it in good faith in reliance thereon.  In the
administration of the trusts hereunder, the Owner Trustee may execute any of
the trusts or powers hereof and perform its powers and duties hereunder
directly or through agents or attorneys, and may consult with counsel,
accountants and other skilled persons to be selected and employed by it (other
than persons regularly employed by it), and the Owner Trustee shall not be
liable for anything done, suffered or omitted in good faith by it in accordance
with the written advice or opinion within the scope of the competence of any
such counsel, accountants or other skilled persons and not contrary to this
Trust Agreement, except for the use of due care in the appointment of counsel,
accountants or other skilled persons.

         Section 5.5.       Not Acting in Individual Capacity.  Trust Company
is entering into this Agreement and accepting the trust created hereby in its
individual capacity.  Otherwise, except as provided in this Trust Agreement and
in the other Operative Agreements, Trust Company agrees to act solely as
trustee hereunder and not in its individual capacity; and all Persons having





                                      8
<PAGE>   12
any claim against the Owner Trustee by reason of the transactions contemplated
by the Operative Agreements or the Owner Trustee Agreements shall look only to
the Trust Estate (or a part thereof, as the case may be) for payment or
satisfaction thereof, except as specifically provided in this Trust Agreement
and except to the extent the Owner Trustee otherwise shall agree in any Owner
Trustee Agreement.

                                   ARTICLE VI
                                INDEMNIFICATION

         Section 6.1.       Indemnification of Trust Company.  The Owner
Participant agrees to assume liability for, and to indemnify and hold harmless
Trust Company against and from any and all liabilities, obligations, losses,
damages, taxes (excluding any taxes, fees or other charges payable by Trust
Company or measured by any compensation received by Trust Company for its
services hereunder), penalties, claims, actions, suits, proceedings, costs,
expenses and disbursements of any kind and nature whatsoever, including,
without limitation, the reasonable fees and expenses of counsel (collectively,
"Trust Expenses") which may be imposed on, incurred by or asserted against
Trust Company whether or not also indemnified by any other Person (provided,
however, that to the extent Trust Company shall have actually received any
payment in the nature of an indemnity payment from any such other Person
relating to a claim hereunder, Trust Company shall not be entitled to the
amount of any such payment pursuant to this Section 6.1) in any way relating to
or arising out of (i) the administration of the Trust Estate or the action or
inaction of Trust Company hereunder or under the other Operative Agreements,
(ii) any Accepted Equipment or any part thereof, (iii) the Operative Agreements
or any of them, or the enforcement by Trust Company of any of its rights under
the Operative Agreements, or (iv) the design, manufacture, financing,
refinancing, installation, acceptance, rejection, ownership, delivery,
nondelivery, lease, sublease, possession, control, use, operation, condition,
modification, servicing, maintenance, repair, improvement, replacement, sale,
return or other disposition of the Accepted Equipment, any Accepted Unit or any
part thereof including, without limitation, (A) any inadequacy or deficiency or
defect therein, including latent defects, whether or not discoverable or any
claim based on negligence or arising from any violation of law or for strict
liability in tort or any claim for patent, trademark or copyright tort or any
claim for patent, trademark or copyright infringement, and (B) any loss or
damage to property or the environment or injury or death to any Person; except
only that the Owner Participant shall not be required to indemnify Trust
Company for Trust Expenses arising or resulting from any of the matters
described in clauses (i) through (v) of the last sentence of Section 5.1;
provided that the Owner Participant shall be liable under this Section 6.1 only
to the extent that the Owner Trustee is indemnified by the Lessee pursuant to
Section 7 of the Participation Agreement (with the exception of the limitations
to Lessee's indemnification obligations set forth in Sections 7.2(d)(i),
7.2(d)(iv) to the extent relating to any such transfer by the Owner Participant
or transfer by the Owner Trustee at the direction of the Owner Participant and
7.2(d)(vi) (when the Owner Trustee is acting on instructions from the Owner
Participant) of the Participation Agreement); provided, further, that before
asserting its right to indemnification pursuant to this Section 6.1, the Owner
Trustee shall first demand its corresponding right to indemnification, if any,
pursuant to





                                      9
<PAGE>   13
Section 7 of the Participation Agreement (but need not exhaust any or all
remedies available thereunder), and the Owner Participant shall have the right
to pursue any such remedies against the Lessee which are not pursued by the
Owner Trustee.  The indemnities contained in this Section 6.1 shall survive the
termination of this Trust Agreement.  To secure the foregoing indemnities, the
Owner Trustee shall be entitled to apply any amount otherwise distributable to
the Owner Participant pursuant to Section 3.2 against any such indemnity which
has not been paid when due.  The indemnities contained in this Section 6.1
extend to Trust Company only and shall not be construed as indemnities of the
Trust Estate.  The payor of any indemnity under this Section 6.1 shall be
subrogated to any right of the Person indemnified in respect of the matter as
to which such indemnity was paid.

         Section 6.2.       Expenses.  The Owner Participant shall pay, or
reimburse the Owner Trustee for, all reasonable expenses of the Owner Trustee,
including, without limitation, the reasonable expenses and disbursements of
such agents, representatives, experts and counsel as the Owner Trustee may
employ in connection with the exercise and performance of its rights and duties
under the Operative Agreements, unless and to the extent that the Owner Trustee
otherwise receives payment or reimbursement pursuant to any Operative
Agreement, whether or not the transactions contemplated hereby are consummated;
provided that the Owner Participant shall have no obligation hereunder to the
extent Lessee is not obligated to pay such amounts pursuant to Section 2.5 of
the Participation Agreement.  The Owner Trustee agrees to look first to the
Lessee for such payment pursuant to Section 2.5 of the Participation Agreement.
Except as provided herein, the Owner Trustee and Trust Company shall have no
right to compensation with respect to the transactions contemplated by the
Operative Agreements.

                                  ARTICLE VII
                         TERMINATION OF TRUST AGREEMENT

         Section 7.1.       Termination of Trust Agreement.

                 (a)        Subject to the terms of the Participation
Agreement, the Indenture and Section 7.2, this Trust Agreement and the trusts
created hereby shall terminate and the Trust Estate shall be distributed to the
Owner Participant, and this Trust Agreement shall be of no further force or
effect, upon the earlier of (i) the sale or other final disposition by the
Owner Trustee of all property constituting part of the Trust Estate and the
final distribution by the Owner Trustee of all moneys or other property or
proceeds constituting part of the Trust Estate in accordance with the terms of
Article III and (ii) twenty-one (21) years less one day after the death of the
last survivor of all of the descendants living on the date of this Trust
Agreement of Joseph P. Kennedy, the late ambassador of the United States to
Great Britain, but if any rights, privileges or options hereunder shall be or
become valid under applicable law for a period subsequent to the twenty-first
anniversary of the death of such last survivor (or, without limiting the
generality of the foregoing, if legislation shall become effective providing
for the validity or permitting the effective grant of such rights, privileges
and options for a period in gross exceeding the period for which such rights,
privileges and options are hereinabove stated to





                                      10
<PAGE>   14
extend and be valid), then such rights, privileges or options shall not
terminate as aforesaid but shall extend to and continue in effect, but only if
such nontermination and extension shall then be valid under applicable law,
until such time as the same shall cease to be valid under applicable law.

                 (b)        Except as expressly provided in Section 7.2, the
Owner Participant shall not be entitled to revoke or terminate this Trust
Agreement or the trust created hereby.  Except as otherwise provided herein,
the Owner Participant may not withdraw any of the Trust Estate until the Lien
of the Indenture on the Trust Estate shall have been discharged pursuant to the
terms thereof.

         Section 7.2.       Termination at Option of the Owner Participant.
The provisions of Section 7.1 notwithstanding, this Trust Agreement and the
trusts created hereby shall terminate and the Trust Estate shall be distributed
to the Owner Participant, and this Trust Agreement shall be of no further force
and effect, upon the election of the Owner Participant by notice to the Owner
Trustee to revoke the trusts created hereby; provided that, in addition to the
giving of such notice, the Owner Participant, with the cooperation of the Owner
Trustee, shall execute and deliver such written agreements and instruments and
take such actions as shall be necessary in order to cause the succession of the
Owner Participant to all the rights, title, interests, duties and liabilities
of the Owner Trustee under the Operative Agreements (other than obligations
attributable to any gross negligence or willful misconduct of Trust Company or
any breach by the Owner Trustee of its obligations under the Operative
Agreements); provided, however, that until the Lien of the Indenture on the
Trust Estate shall have been discharged pursuant to the terms thereof the Owner
Participant may not revoke such trusts without the consent of the Indenture
Trustee.  The written agreements and instruments referred to in the preceding
sentence shall be reasonably satisfactory in form and substance to the Owner
Trustee and shall release the Owner Trustee from all further obligations of the
Owner Trustee hereunder and under the agreements and other instruments
mentioned in the preceding sentence.

                                  ARTICLE VIII
                  SUCCESSOR OWNER TRUSTEES, CO-OWNER TRUSTEES
                          AND SEPARATE OWNER TRUSTEES

         Section 8.1.       Resignation of the Owner Trustee; Appointment of
Successor.

                 (a)        The Owner Trustee may resign as the Owner Trustee
at any time without cause by giving at least thirty (30) days' prior written
notice to the Owner Participant, the Indenture Trustee and the Lessee, such
resignation to be effective on the acceptance of appointment by a successor to
the Owner Trustee under paragraph (b) of this Section 8.1.  In addition, the
Owner Participant at any time may remove the Owner Trustee without cause by an
instrument in writing delivered to the Owner Trustee, the Indenture Trustee and
the Lessee, such removal to be effective upon the acceptance of appointment by
a successor to the Owner Trustee under paragraph (b) of this Section 8.1.  In
case of the resignation or removal of the





                                      11
<PAGE>   15
Owner Trustee, the Owner Participant may appoint a successor to the Owner
Trustee by an instrument in writing, signed by the Owner Participant.  If a
successor to the Owner Trustee shall not have been appointed within thirty (30)
days after the giving of written notice of such resignation or the delivery of
the written instrument with respect to such removal, the Owner Trustee or the
Owner Participant may apply to any court of competent jurisdiction to appoint a
successor to the Owner Trustee to act until such time, if any, as a successor
shall have been appointed as above provided in this Section 8.1.  Any successor
to the Owner Trustee so appointed by such court shall immediately and without
further act be superseded by any successor to the Owner Trustee appointed as
above provided in this Section 8.1.

                 (b)        Any successor Owner Trustee, however appointed,
shall execute and deliver to the predecessor Owner Trustee an instrument
accepting such appointment and shall give the Owner Participant, the Indenture
Trustee and Lessee written notice of such acceptance.  Upon the execution and
delivery of such instrument, such successor Owner Trustee, without further act,
shall become vested with all the estates, properties, rights, powers, duties
and trusts of the predecessor Owner Trustee in the trusts hereunder with like
effect as if originally named a trustee herein; provided, however, that upon
the written request of such successor Owner Trustee, such predecessor Owner
Trustee shall execute and deliver an instrument transferring to such successor
Owner Trustee, upon the trusts herein expressed, all the estates, properties,
rights, powers, duties and trusts of such predecessor trustee as the Owner
Trustee hereunder, and such predecessor trustee shall duly assign, transfer,
deliver and pay over to such successor Owner Trustee all moneys or other
property then held by such predecessor trustee as the Owner Trustee upon the
trusts herein expressed.  Upon the appointment of any successor Owner Trustee
hereunder, the predecessor Owner Trustee, pursuant to written instructions of
the Owner Participant, will execute all documents and take all reasonable
action within its control in order to cause title to the Trust Estate to be
transferred to the successor Owner Trustee.

                 (c)        Any successor Owner Trustee, however appointed,
shall be a bank or trust company incorporated and doing business within the
United States of America and having a combined capital and surplus of at least
$100,000,000, if there be such an institution willing, able and legally
qualified to perform the duties of the Owner Trustee hereunder upon reasonable
or customary terms.

                 (d)        Any corporation into which the Owner Trustee may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which the Owner
Trustee shall be a party, or any corporation to which substantially all the
corporate trust business of the Owner Trustee may be transferred, shall be,
subject to compliance with the terms of paragraph (c) of this Section 8.1, the
Owner Trustee under this Trust Agreement without further act; provided, that
such corporation shall in no event be the Indenture Trustee.





                                      12
<PAGE>   16
         Section 8.2.       Additional and Separate Trustees.

                 (a)        If the Owner Trustee or the Owner Participant shall
conclude that it is necessary or prudent in order to conform to the law of any
jurisdiction in which all or any part of the Trust Estate shall be situated, or
to make or defend any claim or bring or defend any suit with respect to the
Trust Estate or any Operative Agreement, or pursuant to advice of counsel
satisfactory to it, or if the Owner Trustee shall have been instructed to do so
by the Owner Participant, the Owner Trustee shall appoint another Person to act
as additional or separate trustee for all or any part of the Trust Estate with
such property, title, right, power or duty of the Owner Trustee as the Owner
Trustee and the Owner Participant may determine.  In case any such additional
trustee or separate trustee shall resign or be removed, all the assets,
property, rights, powers or duties of such additional trustee or separate
trustee, as the case may be, so far as permitted by any applicable law, shall
vest in and be exercised by a new successor to such additional trustee,
appointed in the manner otherwise provided in this Trust Agreement.

                 (b)        In the event that either the Owner Participant or
the Owner Trustee shall determine to appoint another Person as additional or
separate trustee, the Owner Trustee and the Owner Participant shall execute and
deliver an agreement supplemental hereto, and all other instruments and
agreements necessary or proper to constitute another bank or trust company, or
one or more Persons approved by the Owner Trustee and the Owner Participant,
either to act as an additional trustee or trustees of all or any part of the
Trust Estate, jointly with the Owner Trustee, or to act as separate trustee or
trustees of all or any part of the Trust Estate, in any such case with such
powers of the Owner Trustee as may be provided in such agreement supplemental
hereto, and to vest in such bank, trust company or Person as such additional
trustee or separate trustee, as the case may be, any property, title, right or
power of the Owner Trustee deemed necessary or proper by the Owner Trustee or
the Owner Participant, subject to the remaining provisions of this Section 8.2.
The Owner Trustee may execute, deliver and perform any deed, conveyance,
assignment or other instrument in writing as may be required by an additional
trustee or separate trustee for more fully and certainly vesting in and
confirming to such person any property, title, right or power which, by the
terms of such agreement supplemental hereto, are expressed to be conveyed or
conferred to or upon such additional trustee or separate trustee, and the Owner
Participant shall, upon the Owner Trustee's request, join therein and execute,
acknowledge and deliver the same.

                 (c)        Every additional trustee and separate trustee
hereunder shall, to the extent permitted by law, be appointed to act and the
Owner Trustee shall act, subject to the following provisions and conditions:

                            (i)   all powers, duties, obligations and rights
                 conferred or imposed upon the Owner Trustee in respect of the
                 receipt, custody, investment and payment of moneys, shall be
                 exercised solely by the Owner Trustee;





                                      13
<PAGE>   17
                            (ii)  all other rights, powers, duties, and
                 obligations conferred or imposed upon the Owner Trustee shall
                 be conferred or imposed upon and exercised or performed by the
                 Owner Trustee and such additional trustee or trustees and
                 separate trustee or trustees jointly, except to the extent
                 that under any law of the jurisdiction in which any particular
                 act or acts are to be performed by the Owner Trustee shall be
                 incompetent or unqualified to perform such act or acts, in
                 which event such rights, powers, duties and obligations
                 (including the holding of title to the Trust Estate in any
                 such jurisdiction) shall be exercised and performed by such
                 additional trustee or trustees or separate trustee or
                 trustees;

                            (iii) no power hereby given to, or which
                 may be exercised by, any such additional trustee or separate
                 trustee shall be exercised hereunder by such additional
                 trustee or separate trustee except jointly with, or with the
                 consent of, the Owner Trustee; and

                            (iv)  no trustee hereunder shall be personally
                 liable by reason of any act or omission of any other trustee
                 hereunder.

                 (d)        If at any time the Owner Trustee and the Owner
Participant shall deem it no longer necessary or prudent in order to conform to
any applicable law or shall be advised by its counsel that it is no longer
necessary or prudent in the interest of the Owner Trustee and the Owner
Participant to maintain the appointment of such additional or separate trustee
as provided herein, the Owner Trustee and the Owner Participant shall execute
and deliver any agreement supplemental hereto and all other instruments and
agreements necessary or proper to remove any such additional or separate
trustee.  The Owner Participant, at any time, by an instrument in writing may
remove any separate trustee or additional trustee.

                 (e)        Any additional trustee or separate trustee may at
any time by an instrument in writing constitute the Owner Trustee its agent or
attorney-in-fact with full power and authority, to the extent which may be
authorized by applicable law, to do all acts and things and exercise all
discretion which it is authorized or permitted to do or exercise, for and in
its behalf and in its name.  In case any such additional trustee or separate
trustee shall die, become incapable of acting, resign or be removed, all the
assets, property, rights, powers, trusts, duties and obligations of such
additional trustee or separate trustee, as the case may be, so far as permitted
by law, shall vest in and be exercised by the Owner Trustee without necessity
of any act by any party and without the appointment of a new successor to such
additional or separate trustee, unless and until a successor is appointed in
the manner provided in this Section 8.2.





                                      14
<PAGE>   18
                                   ARTICLE IX
                           SUPPLEMENTS AND AMENDMENTS

         Section 9.1.       Supplements and Amendments.  Subject to Section
9.05 of the Indenture, at the written request of the Owner Participant (and
subject to the provisions of Sections 6.5 and 6.6 of the Participation
Agreement), this Trust Agreement and each other Owner Trustee Agreement shall
be amended by a written instrument signed by Trust Company and the Owner
Participant; provided, however, if in the reasonable opinion of Trust Company
any instrument required to be so executed adversely affects any right, duty or
liability of, or immunity or indemnity in favor of, Trust Company under this
Trust Agreement or any of the documents contemplated hereby to which it is a
party, or would cause or result in any conflict with or breach of any term,
condition or provision of, or default under, its charter documents or by-laws,
Trust Company in its reasonable discretion may decline to execute such
instrument, unless the Trust Company is indemnified therefor under Section 4.3,
as determined by the Trust Company in its reasonable discretion.

                                   ARTICLE X
                                 MISCELLANEOUS

         Section 10.1.      No Legal Title to Trust Estate in the Owner
Participant.  The Owner Participant shall not have legal title to any part of
the Trust Estate.  No transfer, by operation of law or otherwise, of any right,
title and interest of the Owner Participant in and to the Trust Estate or
hereunder, or insolvency, dissolution or other termination of the Owner
Participant, shall operate to terminate this Trust Agreement or the trusts
created hereby or entitle any successor or transferee to an accounting or to
the transfer to it of legal title to any part of the Trust Estate.

         Section 10.2.      Sale of Accepted Equipment by the Owner Trustee is
Binding.  Any sale, transfer or other conveyance of any Accepted Unit or part
thereof by the Owner Trustee made pursuant to the terms of this Trust Agreement
or the Lease shall bind the Owner Participant and shall be effective to
transfer or convey all right, title and interest of the Owner Trustee and the
Owner Participant in and to such Accepted Unit or part thereof, as the case may
be.  No purchaser or other grantee shall be required to inquire as to the
authorization, necessity, expediency or regularity of such sale or conveyance
or as to the application of any sale or other proceeds with respect thereto by
the Owner Trustee.

         Section 10.3.      Notices.  Unless otherwise expressly specified or
permitted by the terms hereof, all notices hereunder shall be given as provided
in Section 10.4 of the Participation Agreement.

         Section 10.4.      Severability.  If any term or provision of this
Trust Agreement is invalid or unenforceable in any jurisdiction, such term or
provision shall be ineffective to the extent of such invalidity or
unenforceability without invalidating or rendering unenforceable any remaining





                                      15
<PAGE>   19
terms and provisions hereof, and any such invalidity or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

         Section 10.5.      Separate Counterparts.  This Trust Agreement may be
executed by the parties hereto in any number of counterparts and by the parties
hereto on separate counterparts, each of which when so executed and delivered
shall be an original, and all of which shall together constitute but one and
the same instrument.

         Section 10.6.      Waivers, etc.  No term or provision hereof may be
changed, waived, discharged or terminated orally, but may be changed, waived,
discharged or terminated by an instrument in writing, and any waiver of the
terms hereof shall be effective only in the specific instance and for the
specific purpose given.

         Section 10.7.      Successors and Assigns.  This Trust Agreement,
including the terms and provisions hereof, shall be binding upon the Owner
Participant and Trust Company or the Owner Trustee, whichever is applicable
pursuant to the terms hereof, and their respective successors and assigns, and
inure to the benefit of the Owner Participant and Trust Company or the Owner
Trustee, whichever is applicable pursuant to the terms hereof, and their
respective successors and permitted assigns, all as herein provided.  Any
request, notice, direction, consent, waiver or other instrument or action by
the Owner Participant shall bind the successors and assigns of the Owner
Participant.

         Section 10.8.      Transfer of Owner Participant's Interest.  All
provisions of Section 6.1 of the Participation Agreement shall (with the same
force and effect as if set forth in full, mutatis mutandis, in this Section
10.8) be applicable to any assignment, conveyance or other transfer by the
Owner Participant of any of its right, title or interest in and to the Trust
Estate or this Trust Agreement or any other Operative Agreement.

         Section 10.9.      Actions of the Owner Participants.  If at any time
prior to the termination of this Trust Agreement there is more than one Owner
Participant, then during such time, if any action is required to be taken by
the Owner Participant, such action shall be taken by or on behalf of all Owner
Participants and whenever any direction, authorization, approval, consent,
instruction or other action is permitted to be given or taken by the Owner
Participant it shall be given or taken only upon such percentage agreement of
the Owner Participants as all Owner Participants may instruct the Owner
Trustee.

         Section 10.10.     Headings; Table of Contents.  The division of this
Trust Agreement into sections, the provision of a table of contents and the
insertion of headings are for convenience of reference only and shall not
affect the construction or interpretation hereof.

         Section 10.11.     Governing Law.  The terms of this Trust Agreement
and the rights and obligations of the parties hereto shall be governed by, and
construed in accordance with, the





                                      16
<PAGE>   20
laws of the State of Utah applicable to contracts made and to be performed
entirely within such state.

         Section 10.12.     Benefit.  Nothing herein, whether express or
implied, shall be construed to give any Person other than the Owner Trustee,
the Indenture Trustee and the Owner Participant any legal or equitable right,
remedy or claim under or in respect of this Trust Agreement.

         Section 10.13.     Performance by the Owner Participant.  Any
obligation of Trust Company or the Owner Trustee hereunder or under any other
Operative Agreement or other document contemplated hereby, may be performed by
the Owner Participant and any such performance shall not be construed as a
revocation of the trusts created hereby.

         Section 10.14.     Conflict with Operative Agreements.  If this Trust
Agreement (or any instructions given by the Owner Participant pursuant hereto)
shall require that any action be taken with respect to any matter or any other
Operative Agreement (or any instruction duly given in accordance with the terms
thereof) shall require that a different action be taken with respect to such
matter, and such actions shall be mutually exclusive, the provisions of such
other Operative Agreement, in respect thereof, shall control.

         Section 10.15.     Limitation on Owner Participant's Liability.  The
Owner Participant shall not have any liability for the performance of this
Trust Agreement, except as expressly set forth herein.

         Section 10.16.     Identification of Trust.  The trust created
hereunder may be referred to for convenience as GATC Trust No. 96-1.

         In Witness Whereof, the parties hereto have each caused this Trust
Agreement to be duly executed and delivered as of the day and year first above
written.


                                        FIRST SECURITY BANK, N.A.
                                        
                                        By:       ______________________________
                                        Name:     ______________________________
                                        Title:    ______________________________





                                      17
<PAGE>   21
                                        DREYFUS SERVICE CORPORATION
                                        [AMSOUTH LEASING CORPORATION]



                                        By:       ______________________________
                                        Name:     ______________________________
                                        Title:    ______________________________
<PAGE>   22

                                                                      Appendix A
                                                         Participation Agreement
                                                       Equipment Lease Agreement
                                          Trust Indenture and Security Agreement
                                                                 Trust Agreement
                                                           (GATC Trust No. 96-1)

                                  DEFINITIONS

General Provisions

         The following terms shall have the following meanings for all purposes
of the Operative Agreements referred to below, unless otherwise defined in an
Operative Agreement or the context thereof shall otherwise require and such
meanings shall be equally applicable to both the singular and the plural forms
of the terms herein defined.  In the case of any conflict between the
provisions of this Appendix A and the provisions of the main body of any
Operative Agreement, the provisions of the main body of such Operative
Agreement shall control the construction of such Operative Agreement.

         Unless the context otherwise requires, (i) references to agreements
shall be deemed to mean and include such agreements as the same may be amended,
supplemented and otherwise modified from time to time, and (ii) references to
parties to agreements shall be deemed to include the permitted successors and
assigns of such parties.

Defined Terms

         "AAR" shall mean the Association of American Railroads or any
successor thereto.

         "Affiliate" of any Person shall mean any other Person which directly
or indirectly controls, or is controlled by, or is under a common control with,
such Person.  The term "control" means the possession, directly or indirectly,
of the power to direct or cause the direction of the management and policies of
a Person, whether through the ownership of voting securities, by contract or
otherwise, and the terms "controlling" and "controlled" shall have meanings
correlative to the foregoing.

         "After-Tax Basis" shall mean, with respect to any payment received or
accrued by any Person, that the amount of such payment is supplemented by a
further payment or payments so that the sum of all such payments, after
reduction for all Taxes payable by such Person imposed by any taxing authority,
shall be equal to the payment due to such Person.

         "Alternative  Minimum Tax" shall mean the alternative minimum tax
imposed under Section 55 of the Code.





                                     -1-
<PAGE>   23
         "Appraisal" shall have the meaning specified in Section 4.3(a) of the
Participation Agreement.

         "Average Life Date" shall mean, with respect to an Equipment Note, the
date which follows the prepayment date or, in the case of an Equipment Note not
being prepaid, the date of such determination, by a period equal to the
Remaining Weighted Average Life of such Equipment Note.

         "Bankruptcy Code" shall mean the United States Bankruptcy Reform Act
of 1978, as amended from time to time, 11 U.S.C. Section 101 et. seq.

         "Basic Group" shall mean each of the two basic groups of Equipment so
designated in Schedule 1 to the Participation Agreement.

         "Basic Prospectus" shall mean the prospectus contained in the
Registration Statement when the most recent post- effective amendment thereto
became effective.

         "Basic Rent" shall mean, with respect to any Unit, all rent payable by
the Lessee to the Lessor pursuant to Section 3.2 of the Lease for the Basic
Term for such Unit, and all rent payable pursuant to Section 22.4 of the Lease
for any Renewal Term for such Unit.

         "Basic Term" shall have the meaning specified in Section 3.1 of the
Lease.

         "Basic Term Commencement Date" shall mean August 28, 1996.

         "Basic Term Expiration Date" shall mean (i) with respect to the Units
related to Lease Supplement No. I, August 28, 20__, and (ii) with respect to
the Units related to Lease Supplement No. II, August 28, 20__.

         "Basic Term Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 7 to the
Participation Agreement applicable to such Unit and the Equipment Cost for such
Unit.

         "Beneficial Interest" shall mean the interest of the Owner Participant
under the Trust Agreement.

         "Bill of Sale" shall mean the full warranty bill of sale, dated the
Closing Date or the date that any Replacement Unit is subjected to the Lease,
from Lessee to Owner Trustee covering the Units delivered on the Closing Date
or such Replacement Unit, as the case may be.

         "Business Day" shall mean any day other than a Saturday, Sunday or a
day on which commercial banking institutions are authorized or required by law,
regulation or executive order to be closed in New York, New York, Chicago,
Illinois, Pittsburgh, Pennsylvania, Birmingham, Alabama, the city and state in
which the principal corporate trust office of the Owner Trustee





                                      -2-
<PAGE>   24
is located, or, until the Lien of the Indenture has been discharged, the city
and state in which the principal corporate trust office of the Indenture
Trustee is located.

         "Certificateholder" means the Person in whose name a Pass Through
Certificate is registered in the register for Pass Through Certificates of a
particular series.

         "Claims" shall have the meaning specified in Section 7.2 of the 
Participation Agreement.

         "Closing Date" shall have the meaning specified in Section 2.1 of the
Participation  Agreement.

         "Code" shall mean the Internal Revenue Code of 1986, as amended from 
time to time.

         "Commitment" with respect to the Owner Participant, shall have the
meaning specified in Section 2.2(a) to the Participation Agreement and with
respect to the Loan Participant, shall have the meaning specified in Section
2.2(b) to the Participation Agreement.

         "Debt Rate" shall mean as of the date of determination, a rate equal
to the rate of interest per annum borne by the Equipment Notes then outstanding
(computed on the basis of a 360-day year of twelve 30-day months).

         [AMSOUTH:  "DEFERRED PORTION" SHALL MEAN THAT PORTION OF THE EARLY
PURCHASE PRICE, THE PAYMENT OF WHICH MAY BE DEFERRED BY THE LESSEE PAST THE
APPLICABLE EARLY PURCHASE DATE FOR SUCH UNIT OR UNITS, AS SET FORTH IN SCHEDULE
6 TO THE PARTICIPATION AGREEMENT.]

         [AMSOUTH:  "DEFERRED PORTION PAYMENT DATES" SHALL MEAN THE DEFERRED
PORTION PAYMENT DATES SPECIFIED ON SCHEDULE 6 TO THE PARTICIPATION AGREEMENT
FOR A RELATED BASIC GROUP OF UNITS.]

         "Determination Date" shall mean the 28th day of any calendar month.

         "Early Purchase Date" shall mean the early purchase date specified on
Schedule 6 to the Participation Agreement for a related Basic Group of Units.

         "Early Purchase Price" shall mean, with respect to any Unit, the
amount equal to the product of the percentage set forth in Schedule 6 to the
Participation Agreement for the Basic Group to which such Unit belongs and the
Equipment Cost for such Unit.

         "Equipment" shall mean collectively those items of railroad rolling
stock described in the Lease Supplements and the Indenture Supplements,
together with any and all accessions, additions, improvements and replacements
from time to time incorporated or installed in any item thereof which are the
property of the Owner Trustee pursuant to the terms of a Bill of Sale or the
Lease, and "Unit" shall mean individually the various items thereof.





                                      -3-
<PAGE>   25
         "Equipment Cost" shall mean, for each Unit, the purchase price
therefor paid by the Owner Trustee to the Lessee pursuant to Section 2 of the
Participation Agreement and as set forth in Schedule 1 to the Participation
Agreement with respect to such Unit.  Notwithstanding anything in the Operative
Agreements to the contrary, the Equipment Cost for any Replacement Unit shall
be deemed to be the Equipment Cost or deemed Equipment Cost of the Unit it
replaced.

         "Equipment Notes" shall mean the Equipment Notes, each to be
substantially in the form therefor set forth in Section 2.01 of the Indenture,
issued by the Owner Trustee pursuant to Section 2.02 of the Indenture, and
authenticated by the Indenture Trustee, in principal amounts, maturities and
bearing interest at the rates and payable as provided in Section 2.02 of the
Indenture and secured as provided in the Granting Clause of the Indenture, and
shall include any Equipment Notes issued in exchange therefor or replacement
thereof pursuant to Section 2.07 or 2.08 of the Indenture.  A "related"
Equipment Note, when used with respect to any Unit or Units of Equipment, shall
mean one of the Equipment Notes issued with respect to the Lease Supplement
under which such Unit or Units of Equipment is or are leased.

         "ERISA" shall mean the Employee Retirement Income Security Act of
1974, as amended from time to time, or any successor law.

         "Event of Loss" shall have the meaning specified in Section 11.1 of
the Lease.

         "Excepted Property" shall mean (i) all indemnity payments (including,
without limitation, payments pursuant to Section 7 of the Participation
Agreement and payments under the Tax Indemnity Agreement) to which the Owner
Participant, the Owner Trustee, as trustee or in its individual capacity, or
any of their respective successors, permitted assigns, directors, officers,
employees, servants and agents is entitled pursuant to the Operative
Agreements, (ii) any right, title or interest of the Owner Trustee, as trustee
or in its individual capacity, or the Owner Participant to any payment which by
the terms of Section 17 of the Lease or any corresponding payment under Section
3.3 of the Lease shall be payable to or on behalf of the Owner Trustee, as
trustee or in its individual capacity, or to the Owner Participant, as the case
may be, (iii) any insurance proceeds payable under insurance maintained by the
Owner Trustee, as trustee or in its individual capacity, or the Owner
Participant pursuant to Section 12.5 of the Lease, (iv) any insurance proceeds
payable to or on behalf of the Owner Trustee, as trustee or in its individual
capacity, or to the Owner Participant, under any public liability insurance
maintained by Lessee pursuant to Section 12 of the Lease (which shall include
the amount of any self-insured retention paid by the Lessee) or by any other
Person, (v) Transaction Costs or other amounts or expenses paid or payable to,
or for the benefit of Owner Trustee, as trustee or in its individual capacity,
or Owner Participant pursuant to the Participation Agreement or the Trust
Agreement, (vi) all right, title and interest of Owner Participant or Owner
Trustee, as trustee or in its individual capacity, in or relating to any
portion of the Units and any other property (tangible or intangible), rights,
titles or interests to the extent any of the foregoing has been released from
the Lien of the Indenture pursuant to the terms thereof, (vii) upon termination
of the Indenture pursuant to the terms thereof with respect to any Unit, all
remaining amounts which shall have been paid or are payable by Lessee and
calculated on the basis of Stipulated Loss Value,





                                      -4-
<PAGE>   26
(viii) any rights of the Owner Participant or the Owner Trustee, as trustee and
in its individual capacity, to demand, collect, sue for, or otherwise receive
and enforce payment of the foregoing amounts, (ix) any amount payable to the
Owner Participant by any Transferee as the purchase price of the Owner
Participant's interest in the Trust Estate in compliance with the terms of the
Participation Agreement and the Trust Agreement and (x) the respective rights
of the Owner Trustee, as trustee and in its individual capacity, or the Owner
Participant to the proceeds of and interest on the foregoing.

         "Fair Market Renewal Term" shall have the meaning specified in Section
22.4 of the Lease.

         "Fair Market Rental Value" or "Fair Market Sales Value" with respect
to any Unit of Equipment shall mean the cash rent or cash price obtainable for
such Unit in an arm's length lease or sale between an informed and willing
lessee or purchaser under no compulsion to lease or purchase, as the case may
be, and an informed and willing lessor or seller, under no compulsion to lease
or sell, as the case may be, as the same shall be specified by agreement
between Lessor and Lessee.  If the parties are unable to agree upon a Fair
Market Rental Value and/or a Fair Market Sales Value within 30 days after
delivery of notice by Lessee pursuant to Section 22.2 of the Lease, or
otherwise where such determination is required, within a reasonable period of
time, such value shall be determined by appraisal.  Lessee will within 15 days
after such 30-day period provide Lessor the name of an appraiser that would be
satisfactory to Lessee, and Lessor and Lessee will consult with the intent of
selecting a mutually acceptable appraiser.  If a mutually acceptable appraiser
is selected, the Fair Market Rental Value or the Fair Market Sales Value, as
the case may be, shall be determined by such appraiser and Lessee shall bear
the cost thereof.  If Lessee and Lessor are unable to agree upon a single
appraiser within such 15-day period, two independent qualified appraisers, one
chosen by Lessee and one chosen by Lessor shall jointly determine such value
and Lessor shall bear the cost of the appraiser selected by Lessor and Lessee
shall bear the cost of the appraiser selected by Lessee.  If such appraisers
cannot agree on the amount of such value within 15 days of appointment, one
independent qualified appraiser shall be chosen by the American Arbitration
Association.  All three appraisers shall make a determination within a period
of 15 days following appointment, and shall promptly communicate such
determination in writing to Lessor and Lessee.  If there shall be a panel of
three appraisers, the three appraisals shall be averaged and such average shall
be the Fair Market Rental Value or Fair Market Sales Value, as the case may be.
The determination made shall be conclusively binding on both the Lessor and
Lessee.  If there shall be a panel of three appraisers, Lessee and Lessor shall
equally share the cost of the third appraiser.  If such appraisal is pursuant
to Section 6.1(e) or is in connection with the exercise of remedies set forth
in Section 15 of the Lease, Lessee shall pay the costs of such appraisal.
Notwithstanding any of the foregoing, for the purposes of Section 15 of the
Lease, the Fair Market Rental Value or the Fair Market Sales Value, as the case
may be, shall be zero with respect to any Unit if Lessor is unable to recover
possession of such Unit in accordance with the terms of paragraph (b) of
Section 15.1 of the Lease.





                                      -5-
<PAGE>   27
         "Final Prospectus" shall mean the prospectus supplement relating to
the Pass Through Certificates that was first filed pursuant to Rule 424(b)
promulgated pursuant to the Securities Act of 1933, as amended, together with
the Basic Prospectus.

         "Fixed Rate Renewal Term" shall have the meaning specified in Section 
22.4(a) of the Lease.

         "FRA" shall mean the Federal Railroad Administration or any successor
thereto.

         "Functional Group" shall mean each and all of the various groups of
Units so designated in Schedule 1 to the Participation Agreement.

         "Hazardous Substances" shall mean any hazardous or toxic substances,
materials or wastes, including, but not limited to, those substances,
materials, and wastes listed in the United States Department of Transportation
Hazardous Materials Table (49 CFR 172.101) or by the Environmental Protection
Agency as hazardous substances (40 CFR part 302) and amendments thereto, or
such substances, materials and wastes which are or become regulated under any
applicable local, state or federal law or the equivalent under applicable
foreign laws including, without limitation, any materials, waste or substance
which is (a) petroleum, (b) asbestos, (c) polychlorinated biphenyls, (d)
defined as a "hazardous material," "hazardous substance" or "hazardous waste"
under applicable local, state or federal law or the equivalent under applicable
foreign laws, (e) designated as a "hazardous substance" pursuant to Section 311
of the Clean Water Act, (f) defined as "hazardous waste" pursuant to Section
1004 of the Resource Conservation and Recovery Act, or (g) defined as
"hazardous substances" pursuant to Section 101 of the Comprehensive
Environmental Response, Compensation, and Liability Act.

         "Income Tax" shall have the meaning specified in Section 7.1(l) of the
Participation Agreement.

         "Indemnified Person" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Indenture" or "Trust Indenture" shall mean the Trust Indenture and
Security Agreement (GATC Trust No. 96-1), dated as of August 28, 1996 between
the Owner Trustee, in the capacities described therein, and the Indenture
Trustee.  The term "Indenture" shall include, except where the context
otherwise requires, each Indenture Supplement entered into pursuant to the
terms of the Indenture.

         "Indenture Default" shall mean an Indenture Event of Default or an
event which with notice or the lapse of time or both would become an Indenture
Event of Default.

         "Indenture Estate" shall have the meaning specified in the Granting 
Clause of the Indenture.





                                      -6-
<PAGE>   28
         "Indenture Event of Default" shall have the meaning specified in
Section 4.01 of the Indenture.

         "Indenture Investment" shall mean any obligation issued or guaranteed
by the United States of America or any of its agencies for the payment of which
the full faith and credit of the United States of America is pledged.

         "Indenture Supplement" shall mean an Indenture Supplement (GATC Trust
No. 96-1) dated the Closing Date or the date that any Replacement Unit is
subjected to the lien and security interest of the Indenture, substantially in
the form of Exhibit A to the Indenture, between the Owner Trustee, in the
capacities described therein, and the Indenture Trustee, covering the Units
delivered on the Closing Date or such Replacement Unit, as the case may be.  A
"related" Indenture Supplement, when used with respect to any Unit or Units of
Equipment, shall mean the Indenture Supplement under which such Unit or Units
of Equipment is or are included in the Indenture Estate.

         "Indenture Trustee" shall mean The First National Bank of Chicago, a
national banking association, as trustee under the Indenture and its successors
thereunder.

         "Indenture Trustee Agreements" shall mean the Operative Agreements to
which the Indenture Trustee is or will be a party.

         "Interchange Rules" shall mean the interchange rules or supplements
thereto of the Mechanical Division of the Association of American Railroads, as
the same may be in effect from time to time.

         "Investment Banker" shall mean an independent investment banking
institution of national standing appointed by Lessee or, if the Indenture
Trustee does not receive notice of such appointment at least ten days prior to
a scheduled prepayment date or if a Lease Event of Default under the applicable
Lease shall have occurred and be continuing, appointed by the Indenture
Trustee.

         "Late Rate" shall mean the lesser of 2% over the Debt Rate and the
maximum interest rate from time to time permitted by law.

         "Lease" or "Lease Agreement" or "Equipment Lease" shall mean the
Equipment Lease Agreement (GATC Trust No. 96-1), relating to the Equipment,
dated as of August 28, 1996, between the Owner Trustee, in the capacities
described therein, as Lessor, and the Lessee.  The term "Lease" shall, except
where the context otherwise requires, include each Lease Supplement entered
into pursuant to the terms of the Lease.

         "Lease Default" shall mean a Lease Event of Default or an event which
with notice or lapse of time or both would become a Lease Event of Default.





                                      -7-
<PAGE>   29
         "Lease Event of Default" shall mean a Lease Event of Default under the
Lease as specified in Section 14 thereof.

         "Lease Supplement" shall mean a Lease Supplement (GATC Trust No.
96-1), dated the Closing Date or the date that any Replacement Unit is
subjected to the Lease, substantially in the form of Exhibit A to the Lease,
between the Lessor and the Lessee, covering the Units delivered on the Closing
Date or such Replacement Unit, as the case may be.  A "related" Lease
Supplement, when used with respect to any Unit or Units of Equipment, shall
mean the Lease Supplement under which such Unit or Units of Equipment is or are
leased.

         "Lease Term" shall mean, with respect to any Unit, the Basic Term
applicable to such Unit and any Renewal Term applicable to such Unit then in
effect.

         "Lessee" shall mean General American Transportation Corporation, a New
York corporation, and its successors and permitted assigns.

         "Lessee Agreements" shall mean the Operative Agreements to which
Lessee is or will be a party.

         "Lessor" shall have the meaning specified in the recitals to the
Lease.

         "Lessor's Liens" means any Lien affecting, on or in respect of the
Equipment, the Lease or the Trust Estate arising as a result of (i) claims
against Lessor (in its individual capacity or as Owner Trustee) or the Owner
Participant, not related to the transactions contemplated by the Operative
Agreements, or (ii) acts or omissions of the Lessor (in its individual capacity
or as Owner Trustee) or the Owner Participant not related to the transactions
contemplated by the Operative Agreements or in breach of any covenant or
agreement of such Person set forth in any of the Operative Agreements, or (iii)
taxes imposed against the Lessor (in its individual capacity or as Owner
Trustee) or the Owner Participant or the Trust Estate which are not indemnified
against by the Lessee pursuant to the Participation Agreement or under the Tax
Indemnity Agreement.

         "Lien" shall mean any mortgage, pledge, security interest, lien,
encumbrance, lease, disposition of title or other charge of any kind on
property.

         "Limited Use Property" shall have the meaning set forth in Rev. Proc. 
76-30, 1976-2 C.B. 647.

         "Loan Participant" shall mean and include each registered holder from
time to time of an Equipment Note issued under the Indenture, including, so
long as it holds any Equipment Notes issued thereunder, the Pass Through
Trustee under the Pass Through Trust Agreement.

         "Majority In Interest" as of a particular date of determination shall
mean with respect to any action or decision of the holders of the Equipment
Notes, the holders of more than 50% in aggregate unpaid principal amount of the
Equipment Notes, if any, then outstanding which are





                                      -8-
<PAGE>   30
affected by such decision or action, excluding any Equipment Notes held by the
Owner Participant or the Lessee or an Affiliate of the Owner Participant or the
Lessee unless all Equipment Notes are so held.

         "Make-Whole Amount" shall mean, with respect to the principal amount
of any Equipment Note to be prepaid on any prepayment date, the amount which
the Investment Banker determines as of the third Business Day prior to such
prepayment date to equal the product obtained by multiplying (a) the excess, if
any, of (i) the sum of the present values of all the remaining scheduled
payments of principal and interest from the prepayment date to maturity of such
Equipment Note, discounted semi-annually on each August 28 and February 28 at a
rate equal to the Treasury Rate plus 0.5%, based on a 360-day year of twelve
30-day months, over (ii) the aggregate unpaid principal amount of such
Equipment Note plus any accrued but unpaid interest thereon by (b) a fraction
the numerator of which shall be the principal amount of such Equipment Note to
be prepaid on such prepayment date and the denominator of which shall be the
aggregate unpaid principal amount of such Equipment Note; provided that the
aggregate unpaid principal amount of such Equipment Note for the purpose of
clause (a)(ii) and (b) of this definition shall be determined after deducting
the principal installment, if any, due on such prepayment date.

         "Modification" shall have the meaning specified in Section 9.2 of the
Lease.

         "Net Economic Return" shall mean the pattern of earnings within a 10%
variance during any calendar year, net after-tax book yield and total after-tax
cash flow [AMSOUTH: (BUT NOT THE PATTERN OF EARNINGS)] expected by the original
Owner Participant with respect to the Equipment (both through the Early
Purchase Date and the Basic Term Expiration Date), utilizing the multiple
investment sinking fund method of analysis and the same assumptions as used by
such Owner Participant in making the computations of Basic Rent, Stipulated
Loss Value, Termination Value, Basic Term Purchase Price and Early Purchase
Price initially set forth in Schedules 3, 4, 6 and 7 to the Participation
Agreement.

         "Non-Severable Modification" shall mean any Modification that is not
readily removable without impairing the value, utility or remaining useful life
of the Equipment or any Unit immediately prior to removal of such modification,
other than in a de minimis nature.

         "Officer's Certificate" shall mean a certificate signed (i) in the
case of a corporation by the President, any Vice President, the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary of such
corporation, (ii) in the case of a partnership by the Chairman of the Board,
the President or any Vice President, the Treasurer or an Assistant Treasurer of
a corporate general partner, and (iii) in the case of a commercial bank or
trust company, the Chairman or Vice Chairman of the Executive Committee or the
Treasurer, any Trust Officer, any Vice President, any Executive or Senior or
Second or Assistant Vice President, or any other officer or assistant officer
customarily performing the functions similar to those performed by the persons
who at the time shall be such officers, or to whom any corporate trust matter
is referred because of his knowledge of and familiarity with the particular
subject.





                                      -9-
<PAGE>   31
         "Operative Agreements" shall mean the Participation Agreement, the
Bill of Sale, the Trust Agreement, the Pass Through Trust Agreement, the Pass
Through Trust Supplements, the Pass Through Certificates, the Equipment Notes,
the Lease, the Lease Supplements, the Indenture, the Indenture Supplements, the
Tax Indemnity Agreement and the Underwriting Agreement.

         "Outside Fixed Renewal Date" shall have the meaning specified in
Section 22.4(a) of the Lease.

         "Owner Participant" shall mean Dreyfus Service Corporation, a New York
corporation [AMSOUTH LEASING CORPORATION, AN ALABAMA BANKING CORPORATION], and
its successors and permitted assigns.

         "Owner Participant Agreements" shall mean the Operative Agreements to
which the Owner Participant is or will be a party.

         "Owner Trustee" shall mean First Security Bank, N.A., a national
banking association, not in its individual capacity but solely as Owner Trustee
under the Trust Agreement and its successors thereunder.

         "Owner Trustee Agreements" shall mean the Operative Agreements to
which the Owner Trustee, either in its individual or fiduciary capacity, is or
will be a party.

         "Parent" means GATX Corporation, a New York corporation, and its
successors and assigns.

         "Participants" shall mean the Loan Participant and the Owner
Participant.

         "Participation Agreement" shall mean the Participation Agreement (GATC
Trust No. 96-1) dated as of August 28, 1996, among the Lessee, the Pass Through
Trustee, the Owner Participant, the Owner Trustee and the Indenture Trustee.

         "Pass Through Certificates" shall mean the Pass Through Certificates
issued pursuant to each of the Pass Through Trust Supplements and the Pass
Through Trust Agreement.

         "Pass Through Trust Agreement" shall mean the Pass Through Trust
Agreement, dated as of August 1, 1992, between the Lessee and the Pass Through
Trustee.

         "Pass Through Trust Supplement" shall mean either of Trust Supplement
No. 6 dated as of August 28, 1996 or Trust Supplement No. 7 dated as of August
28, 1996, each between the Lessee and the Pass Through Trustee, each of which
supplements the Pass Through Trust Agreement (i) by creating a separate trust
for the holders of certain Pass Through Certificates, (ii) by authorizing the
issuance of such Pass Through Certificates and (iii) by establishing the terms
of such Pass Through Certificates.





                                      -10-
<PAGE>   32
         "Pass Through Trustee" shall mean The First National Bank of Chicago,
a national banking association, in its capacity as trustee under the Pass
Through Trust Agreement, as supplemented by the Pass Through Trust Supplements,
and each other person which may from time to time be acting as successor
trustee under the Pass Through Trust Agreement, as supplemented by the Pass
Through Trust Supplement.

         "Pass Through Trustee Agreements" shall mean the Operative Agreements
to which the Pass Through Trustee is or will be a party.

         "Permitted Liens" with respect to the Equipment and each Unit thereof
shall mean: (i) the interests of the Lessee and the Owner Trustee under the
Lease and the Lease Supplements; (ii) the interest of the Lessee and any
sublessee as provided in any sublease permitted pursuant to Section 8.3 of the
Lease; (iii) any Liens thereon for taxes, assessments, levies, fees and other
governmental and similar charges not due and payable or the amount or validity
of which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (iv) any Liens of mechanics, suppliers, materialmen, laborers,
employees, repairmen and other like Liens arising in the ordinary course of
Lessee's (or if a sublease is then in effect, any sublessee's) business
securing obligations which are not due and payable or the amount or validity of
which is being contested in good faith by appropriate proceedings so long as
there exists no material risk of sale, forfeiture, loss, or loss of or
interference with use or possession of any Unit or interference with the
payment of Rent; (v) the Lien and security interest granted to the Indenture
Trustee under and pursuant to the Indenture, and the respective rights of the
Loan Participant, the Indenture Trustee, the Owner Participant and the Owner
Trustee under the Operative Agreements; (vi) Liens arising out of any judgment
or award against the Lessee (or any sublessee permitted pursuant to Section 8.3
of the Lease) with respect to which an appeal or proceeding for review is being
presented in good faith and for the payment of which adequate reserves have
been provided as required by generally accepted accounting principles or other
appropriate provisions have been made and with respect to which there shall
have been secured a stay of execution pending such appeal or proceeding for
review and there exists no material risk of sale, forfeiture, loss, or loss of
or interference with the use or possession of any Unit or any interest therein
or interference with the payment of Rent, and (vii) salvage rights of insurers
under insurance policies maintained pursuant to Section 12 of the Lease.

         "Permitted Subleases" shall have the meaning specified in Section 8.3 
of the Lease.

         "Person" shall mean an individual, partnership, limited liability
company, corporation, trust, association or unincorporated organization, and a
government or agency or political subdivision thereof.

         "Preliminary Final Prospectus" shall mean any preliminary prospectus
supplement to the Basic Prospectus which describes the Pass Through
Certificates and the offering thereof and is used prior to the filing of the
Final Prospectus, together with the Basic Prospectus.





                                      -11-
<PAGE>   33
         "Premium Termination Date" shall mean (i) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. I, August 28,
20__, (ii) in the case of the Series of Equipment Notes designated as Series B
for Lease Supplement No. I, August 28, 20__, (iii) in the case of the Series of
Equipment Notes designated as Series A for Lease Supplement No. II, August 28,
20__, and (iv) in the case of the Series of Equipment Notes designated as
Series B for Lease Supplement No. II August 28, 20__.

         "Pricing Date" shall mean the date on which the Underwriting Agreement
is executed by the Lessee and the Underwriters.

         "Refunding Date" shall have the meaning specified in Section 10.2(a)
of the Participation Agreement.

         "Registration Statement" shall mean the registration statement filed
by the Lessee (File Number 33-64697), including incorporated documents,
exhibits and financial statements, as amended at the time of the Closing Date,
including any post-effective amendment thereto which has become effective prior
to the Closing Date.

         "Related Indemnitee Group" shall have the meaning specified in Section
7.2(b) of the Participation Agreement.

         "Related Transaction" means the additional leveraged lease transaction
with respect to which the Pass Through Trustee has agreed to acquire the
equipment notes to be issued pursuant to the participation agreement dated as
of August 28, 1996 among the Lessee, the Pass Through Trustee, AmSouth Leasing
Corporation, the Owner Trustee and the Indenture Trustee.

         "Remaining Weighted Average Life" shall mean, with respect to any date
of prepayment or any date of determination of any Equipment Note, the number of
days equal to the quotient obtained by dividing (a) the sum of the products
obtained by multiplying (i) the amount of each then remaining principal payment
on such Equipment Note by (ii) the number of days from and including the
prepayment date or date of determination to but excluding the scheduled payment
date of such principal payment by (b) the unpaid principal amount of such
Equipment Note.

         "Renewal Term" shall mean, with respect to any Unit, any term in
respect of which the Lessee shall have exercised its option to renew the Lease
for such Unit pursuant to Section 22.4 thereof, including any Fixed Rate
Renewal Term or Fair Market Renewal Term.

         "Rent" shall mean all Basic Rent and Supplemental Rent.

         "Rent Payment Date" or "Payment Date" shall mean each August 28 and
February 28 of each year occurring during the Lease Term, commencing February
28, 1997, provided that if any such date shall not be a Business Day, then
"Rent Payment Date" or "Payment Date" shall mean the next succeeding Business
Day.





                                      -12-
<PAGE>   34
         "Replacement Unit" shall mean a covered hopper car or tank car, as the
case may be, which shall have been leased under the Lease pursuant to Section
11.4 of the Lease.

         "Required Modification" shall have the meaning specified in 
Section 9.1 of the Lease.

         "Responsible Officer" shall mean, with respect to the subject matter
of any covenant, agreement or obligation of any party contained in any
Operative Agreement, the President, or any Vice President, Assistant Vice
President, Treasurer, Assistant Treasurer or other officer, who in the normal
performance of his operational responsibility would have knowledge of such
matters and the requirements with respect thereto.

         "Scheduled Closing Date" shall have the meaning specified in Section
2.7 of the Participation Agreement.

         "Security" shall have the same meaning as in Section 2(1) of the
Securities Act of 1933, as amended.

         "Series" shall mean each of the two series of Equipment Notes for each
Lease Supplement so designated in Exhibit B to the Indenture.

         "Severable Modification" shall mean any Modification that is readily
removable without causing material damage to the Equipment or any Unit and
without diminishing the value, utility or useful life of such Unit below the
value, utility or useful life of such Unit immediately prior to such
Modification, assuming that such Unit was then in the condition required to be
maintained by the terms of the Lease, other than in a de minimis nature.

         "Special Purchase Defeasance" shall mean, with respect to any election
by Lessee to purchase Units under Section 22.1 or 22.3 of the Lease, the
deposit by Lessee with the Indenture Trustee prior to the date as of which
Lessor shall have declared the Lease to be in default as a result of a Lease
Event of Default under Section 14(c), 14(d), 14(e), 14(f) or 14(i) of the Lease
(in circumstances where such Lease Event of Default occurs after the date of
Lessee's notice to purchase under Sections 22.1 or 22.3 but before the Early
Purchase Date or the expiration of the Basic Term or any Renewal Term, as
applicable), of an amount sufficient to pay (i) the Early Purchase Price,
together with all other amounts due and owing by the Lessee under the Operative
Agreements, with respect to those Units which Lessee has elected to purchase on
the Early Purchase Date under Section 22.1 of the Lease, or (ii) the Basic Term
Purchase Price or Fair Market Sales Value, as the case may be, together with
all other amounts due and owing by the Lessee under the Operative Agreements,
with respect to those Units which Lessee has elected to purchase at the
expiration of the Basic Term or any Renewal Term, as applicable, under Section
22.3 of the Lease.  All amounts deposited by Lessee with the Indenture Trustee
in connection with a Special Purchase Defeasance shall be held and invested by
the Indenture Trustee in accordance with Section 6.04(b) of the Indenture
pending consummation of the purchase of the related Units on the Early Purchase
Date or upon the expiration of the Basic Term or the related Renewal Term, as
applicable.





                                      -13-
<PAGE>   35
         "Specified Investments" shall mean (i) direct obligations of the
United States of America and agencies thereof for which the full faith and
credit of the United States is pledged, (ii) obligations fully guaranteed by
the United States of America, (iii) certificates of deposit issued by, or
bankers' acceptances of, or time deposits with, any bank, trust company or
national banking association incorporated or doing business under the laws of
the United States of America or one of the States thereof having combined
capital and surplus and retained earnings of at least $500,000,000 (including
the Indenture Trustee or Owner Trustee if such conditions are met), and (iv)
repurchase agreements with any financial institution having a combined capital
and surplus of at least $750,000,000 fully collateralized by obligations of the
type described in clauses (i) and (iii) above; provided that if all of the
above investments are unavailable, the entire amount to be invested may be used
to purchase Federal funds from an entity described in (iii) above; and provided
further that no investment shall be eligible as a "Specified Investment" unless
the final maturity or date of return of such investment is 91 days or less from
the date of purchase thereof.

         "STB" shall mean the Surface Transportation Board of the United States
Department of Transportation or any successor thereto.

         "Stipulated Loss Value" for any Unit as of any date of determination
shall mean the amount determined by multiplying the Equipment Cost for such
Unit by the percentage set forth in Schedule 4 to the Participation Agreement
opposite the Rent Payment Date or the Determination Date, as applicable, on
which such Stipulated Loss Value is being determined for the Basic Group to
which such Unit belongs; provided that during any Renewal Term, "Stipulated
Loss Value" shall be determined as provided in Section 22.6 of the Lease.
Anything contained in the Lease or in the Participation Agreement to the
contrary notwithstanding, Stipulated Loss Value for such Unit (both before and
after any adjustment pursuant to Section 2.6 of the Participation Agreement)
will, under any circumstances and in any event, be an amount which, together
with any other amounts required to be paid by Lessee under the Lease in
connection with an Event of Loss, will be at least sufficient to pay in full as
of the date of payment thereof the aggregate unpaid principal of the Equipment
Notes issued in respect of such Unit, together with all unpaid interest and
Make-Whole Amount, if any, thereon accrued to the date on which such amount is
paid in accordance with the terms hereof and all other amounts then due to the
holders of the Equipment Notes.

         "Storage Period" shall have the meaning specified in Section 6.1(c)(i)
of the Lease.

         "Subsidiary" of any Person shall mean any corporation, association, or
other business entity of which more than 50% (by number of votes) of the voting
stock at the time outstanding shall at the time be owned, directly or
indirectly, by such Person or by any other corporation, association or trust
which is itself a Subsidiary within the meaning of this definition, or
collectively by such Person and any one or more such Subsidiaries.

         "Supplemental Rent" shall mean all amounts, liabilities and
obligations (other than Basic Rent) which the Lessee is obligated to pay under
the Operative Agreements to or on behalf of





                                      -14-
<PAGE>   36
any of the other parties thereto, including, but not limited to, Termination
Value and Stipulated Loss Value payments.

         "Taxes" shall have the meaning specified in Section 7.1(b) of the
Participation Agreement.

         "Tax Indemnitee" shall have the meaning specified in Section 7.1 of
the Lease.

         "Tax Indemnity Agreement" shall mean the Tax Indemnity Agreement dated
as of August 28, 1996 (GATC Trust No.  96-1) between the Lessee and the Owner
Participant.

         "Terminated Units" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Date" shall have the meaning specified in Section 10.1 of
the Lease.

         "Termination Value" for any Unit as of any date of determination shall
mean the amount determined by multiplying the Equipment Cost for such Unit by
the percentage set forth in Schedule 4 to the Participation Agreement opposite
the Rent Payment Date or the Determination Date, as applicable, on which such
Termination Value is being determined for the Basic Group to which such Unit
belongs; provided that during any Renewal Term, "Termination Value" shall be
determined as provided in Section 22.6 of the Lease.  Anything contained in the
Lease or in the Participation Agreement to the contrary notwithstanding,
Termination Value for such Unit (both before and after any adjustment pursuant
to Section 2.6 of the Participation Agreement) will, under any circumstances
and in any event, be an amount which, together with any other amounts required
to be paid by Lessee under the Lease in connection with such termination, will
be at least sufficient to pay in full as of the date of payment thereof the
aggregate unpaid principal of the Equipment Notes issued in respect of such
Unit, together with all unpaid interest and Make-Whole Amount, if any, thereon
accrued to the date on which such amount is paid in accordance with the terms
thereof and all other amounts then due to the holders of the Equipment Notes.

         "Total Equipment Cost" shall mean the sum of the Equipment Costs for
each Unit.

         "Transaction Costs" shall have the meaning specified in Section 2.5(a)
of the Participation Agreement.

         "Transferee" shall have the meaning specified in Section 6.1(a) of the
Participation Agreement.

         "Treasury Rate" shall mean with respect to prepayment of each
Equipment Note, a per annum rate (expressed as a semiannual equivalent and as a
decimal and, in the case of United States Treasury bills, converted to a bond
equivalent yield), determined to be the per annum rate equal to the semiannual
yield to maturity for United States Treasury securities maturing on the Average
Life Date of such Equipment Note, as determined by interpolation between the
most recent weekly average yields to maturity for two series of United States
Treasury securities, (A)





                                      -15-
<PAGE>   37
one maturing as close as possible to, but earlier than, the Average Life Date
of such Equipment Note and (B) the other maturing as close as possible to, but
later than, the Average Life Date of such Equipment Note, in each case as
published in the most recent H.15(519) (or, if a weekly average yield to
maturity for United States Treasury securities maturing on the Average Life
Date of such Equipment Note is reported in the most recent H.15(519), as
published in H.15(519)).  H.15(519) means "Statistical Release H.15(519),
Selected Interest Rates," or any successor publication, published by the Board
of Governors of the Federal Reserve System.  The most recent H.15(519) means
the latest H.15(519) which is published prior to the close of business on the
third Business Day preceding the scheduled prepayment date.

         "Trust" shall have the meaning specified in the Trust Agreement.

         "Trust Agreement" shall mean that certain Trust Agreement (GATC Trust
No. 96-1), dated as of August 28, 1996, between the Owner Participant and the
Owner Trustee.

         "Trust Estate" shall have the meaning set forth in Section 2.2 of the 
Trust Agreement.

         "Trustee" shall mean each of the Owner Trustee, the Indenture Trustee
or the Pass Through Trustee and "Trustees" shall mean the Owner Trustee,
Indenture Trustee and the Pass Through Trustee, collectively.

         "Underwriters" shall mean Morgan Stanley & Co. Incorporated and Salomon
Brothers Inc.

         "Underwriting Agreement" shall mean that certain Underwriting
Agreement between the Lessee and the Underwriters, pertaining to the sale of
the Pass Through Certificates.

         "Unit" shall mean each unit or item of Equipment.





                                      -16-


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