GREENTREE FLOORPLAN FUNDING CORP
POS AM, 1998-09-15
ASSET-BACKED SECURITIES
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<PAGE>
 
     
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 15, 1998
                                         
                                       REGISTRATION NOS. 333-59865-01 333-59865
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                --------------
                         
                      POST-EFFECTIVE AMENDMENT NO. 1     
                                      TO
 
                                   FORM S-1
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                                --------------
GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST
                 (ISSUER WITH RESPECT TO OFFERED CERTIFICATES)
                      GREEN TREE FLOORPLAN FUNDING CORP.
                  (ORIGINATOR OF THE TRUST DESCRIBED HEREIN)
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                                --------------
       DELAWARE                      6189                    41-1823871
   (STATE OR OTHER        (PRIMARY STANDARD INDUSTRIAL    (I.R.S. EMPLOYER   
   JURISDICTION OF        CLASSIFICATION CODE NUMBER)     IDENTIFICATION NO.)
   INCORPORATION OR
    ORGANIZATION)
 
                              500 LANDMARK TOWERS
            345 ST. PETER STREET, SAINT PAUL, MINNESOTA 55102-1639
                                (651) 293-3400
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                                --------------
                            JOEL H. GOTTESMAN, ESQ.
                             1100 LANDMARK TOWERS
            345 ST. PETER STREET, SAINT PAUL, MINNESOTA 55102-1639
                                (651) 293-3400
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
                                --------------
                                  COPIES TO:
           CHARLES F. SAWYER                      RENWICK D. MARTIN
         DORSEY & WHITNEY LLP                     BROWN & WOOD LLP
        220 SOUTH SIXTH STREET                 ONE WORLD TRADE CENTER
     MINNEAPOLIS, MINNESOTA 55402             NEW YORK, NEW YORK 10048
            (612) 343-7986                         (212) 839-5300
                                --------------
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF SECURITIES TO THE
PUBLIC: As soon as practicable after the effective date of this Registration
Statement.
 
  If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
   
  If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [X] Registration Nos. 333-59865 and 333-59865-01     
 
  If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]
       
       
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
       
<PAGE>
 
                                   PART II.
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
<TABLE>
   <S>                                                             <C>
   SEC registration fee........................................... $136,438.00
   Blue Sky fees and expenses.....................................   10,000.00*
   Accountant's fees and expenses.................................   30,000.00*
   Attorney's fees and expenses...................................   75,000.00*
   Trustee's fees and expenses....................................   15,000.00*
   Printing and engraving expenses................................  150,000.00*
   Rating Agency fees.............................................  150,000.00*
   Miscellaneous..................................................    8,562.00*
                                                                   -----------
     Total........................................................ $575,000.00*
                                                                   ===========
</TABLE>
- -------
   * Estimated
       
  For a description of additional terms concerning the sales of securities
listed above, see Annex B to the Prospectus forming part of this registration
statement.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
  (a) Exhibits:
 
<TABLE>   
  <C>        <S>
        *1.1 Underwriting Agreement
      ***3.1 Certificate of Incorporation of Green Tree Floorplan Funding Corp.
      ***3.2 Bylaws of Green Tree Floorplan Funding Corp.
     ****4.1 Pooling and Servicing Agreement dated December 1, 1995
        *4.2 Series 1998-2 Supplement to the Pooling and Servicing Agreement
              dated as of August 1, 1998
     ****4.3 Receivables Purchase Agreement dated December 1, 1995
       **4.4 Amendment No. 1 to the Pooling and Servicing Agreement dated as of
              March 11, 1998
   ******4.5 Series 1998-A Supplement to the Pooling and Servicing Agreement
              dated as of August 1, 1998
   ******5.1 Opinion and consent of Dorsey & Whitney LLP as to legality
   ******8.1 Opinion and consent of Dorsey & Whitney LLP as to tax matters
  ******23.1 Consent of Dorsey & Whitney LLP (included as part of Exhibit 5.1)
  ******23.2 Consent of Dorsey & Whitney LLP (included as part of Exhibit 8.1)
   *****24.1 Power of attorney from officers and directors of the Registrants
              (Included at II-2)
</TABLE>    
- -------
   
     *Filed herewith.     
   
    **Incorporated by reference to the corresponding exhibit to Post Effective
    Amendment No. 1 to the Registration Statement on Form S-1, Registration
    No. 333-47533, filed April 15, 1998.     
   
   ***Incorporated by reference to the corresponding exhibit numbers in
    Amendment No. 1 to the Company's Registration Statement on Form S-1,
    Registration No. 33-62433, filed November 8, 1995.     
   
  ****Incorporated by reference to the corresponding exhibit in the Company's
    Registration Statement on Form S-1, Registration No. 333-15285, filed
    October 31, 1996.     
   
 *****Previously filed in the Company's Registration Statement on Form S-1,
    Registration Nos. 333-59865 and 333-59865-01, filed July 24, 1998.     
   
******Previously filed in Amendment No. 1 to the Company's Registration
    Statement on Form S-1, Registration Nos. 333-59865 and 333-59865-01, filed
    August 17, 1998.     
 
  (b) Financial Statements:
 
    Not Applicable
       
                                     II-1
<PAGE>
 
       
       
                                  SIGNATURES
   
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
HAS DULY CAUSED THIS POST-EFFECTIVE AMENDMENT NO. 1 TO THE REGISTRATION
STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY
AUTHORIZED, IN THE CITY OF SAINT PAUL, STATE OF MINNESOTA, ON THE 15TH DAY OF
SEPTEMBER, 1998.     
 
 
                                      Green Tree Floorplan Funding Corp.
 
                                                 /s/ Phyllis A. Knight
                                      By ______________________________________
                                             PHYLLIS A. KNIGHT
                                         Senior Vice President and
                                                 Treasurer
 
                               POWER OF ATTORNEY
   
  Pursuant to the requirements of the Securities Act, this Post-Effective
Amendment No. 1 to the Registration Statement has been signed by the following
persons in the capacities and on the date indicated.     
 
 
            SIGNATURE                      TITLE              DATE
 
                *                   President and            
- ----------------------------------   Director             September 15,
         RICHARD G. EVANS                                     1998     
 
 
                *                   Senior Vice              
- ----------------------------------   President and        September 15,
        PHYLLIS A. KNIGHT            Treasurer                1998     
                                     (Principal
                                     Financial Officer
                                     and Principal
                                     Accounting
                                     Officer)
 
 
                *                   Senior Vice              
- ----------------------------------   President and        September 15,
        JOEL H. GOTTESMAN            Director                 1998     
 
                *                   Director                 
- ----------------------------------                        September 15,
          PAUL A. BOYUM                                       1998     
 
                *                   Director                 
- ----------------------------------                        September 15,
          GARY P. MILLS                                       1998     
 
 
 
 
*By     /s/ Phyllis A. Knight
  -------------------------------
          PHYLLIS A. KNIGHT
           Attorney-in-fact
 
                                     II-2
<PAGE>
 
                                  SIGNATURES
   
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
HAS DULY CAUSED THIS POST-EFFECTIVE AMENDMENT NO. 1 TO THE REGISTRATION
STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY
AUTHORIZED, IN THE CITY OF SAINT PAUL, STATE OF MINNESOTA, ON THE 15TH DAY OF
SEPTEMBER, 1998.     
 
 
                                          Green Tree Floorplan Receivables
                                           Master Trust
 
                                          By Green Tree Floorplan Funding
                                           Corp.
 
                                                   /s/ Phyllis A. Knight
                                          By __________________________________
                                                   PHYLLIS A. KNIGHT
                                               Senior Vice President and
                                                       Treasurer
 
                                     II-3
<PAGE>
 
                               INDEX TO EXHIBITS
 
                                                                           PAGE
 
 
<TABLE>   
  <C>        <S>                                           <C>
        *1.1 Underwriting Agreement                        Electronically filed
      ***3.1 Certificate of Incorporation of Green Tree
              Floorplan Funding Corp.
      ***3.2 Bylaws of Green Tree Floorplan Funding
              Corp.
     ****4.1 Pooling and Servicing Agreement dated
              December 1, 1995
        *4.2 Series 1998-2 Supplement to the Pooling and   Electronically filed
              Servicing Agreement dated as of August 1,
              1998
     ****4.3 Receivables Purchase Agreement dated
              December 1, 1995
       **4.4 Amendment No. 1 to the Pooling and
              Servicing Agreement dated as of March 11,
              1998
   ******4.5 Series 1998-A Supplement to the Pooling and   Electronically filed
              Servicing Agreement dated as of August 1,
              1998
   ******5.1 Opinion and consent of Dorsey & Whitney LLP   Electronically filed
              as to legality
   ******8.1 Opinion and consent of Dorsey & Whitney LLP   Electronically filed
              as to tax matters
  ******23.1 Consent of Dorsey & Whitney LLP (included     Electronically filed
              as part of Exhibit 5.1)
  ******23.2 Consent of Dorsey & Whitney LLP (included     Electronically filed
              as part of Exhibit 8.1)
   *****24.1 Power of attorney from officers and
              directors of the Registrants (Included at
              II-2)
</TABLE>    
- --------
   
     *Filed herewith.     
   
    **Incorporated by reference to the corresponding exhibit to Post Effective
     Amendment No. 1 to the Registration Statement on Form S-1, Registration
     No. 333-47533, filed April 15, 1998.     
   
   ***Incorporated by reference to the corresponding exhibit numbers in
     Amendment No. 1 to the Company's Registration Statement on Form S-1
     Registration No. 33-62433, filed November 8, 1995.     
   
  ****Incorporated by reference to the corresponding exhibit in the Company's
     Registration Statement on Form S-1, Registration No. 333-15285, filed
     October 31, 1996.     
   
 *****Previously filed in the Company's Registration Statement on Form S-1,
     Registration Nos. 333-59865 and 333-59865-01, filed July 24, 1998.     
   
******Previously filed in Amendment No. 1 to the Company's Registration
     Statement on Form S-1, Registration Nos. 333-59865 and 333-59865-01,
     filed August 17, 1998.     
 
  (b) Financial Statements:
 
    Not Applicable

<PAGE>
 
                                                                     Exhibit 1.1


                                                                  EXECUTION COPY



                                  $440,000,000
            (Floating Rate) Floorplan Receivable Trust Certificates,
                             Series 1998-2, Class A

                                       and

                                   $22,500,000
            (Floating Rate) Floorplan Receivable Trust Certificates,
                             Series 1998-2, Class B


                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST


                             UNDERWRITING AGREEMENT



                                                                 August 20, 1998


J.P. Morgan Securities Inc.
60 Wall Street
New York, NY  10260

Merrill Lynch & Co.
Merrill Lynch, Pierce, Fenner & Smith
  Incorporated
World Financial Center, North Tower
New York, NY 10281

Dear Sirs:

         Green Tree Floorplan Funding Corp. ("GTFFC") is a Delaware corporation
with its principal place of business in Saint Paul, Minnesota. GTFFC has filed a
Registration Statement on Form S-1 (hereinafter referred to as the "Registration
Statement") relating to $440,000,000 (Floating Rate) Floorplan Receivable Trust
Certificates, Series 1998-2, Class A and $22,500,000 (Floating Rate) Floorplan
Receivable Trust Certificates, Series 1998-2, Class B (the "Offered
Certificates") evidencing interests in Green Tree Floorplan Receivables Master
Trust (the "Trust"). The Offered Certificates will be issued pursuant to a
pooling and servicing agreement (the "Pooling and Servicing Agreement") dated as
of December 1, 1995 among GTFFC, as transferor, Green Tree Financial
Corporation, as servicer ("Green Tree" or the "Servicer"), and Norwest Bank
Minnesota, National Association, as trustee (the "Trustee") and pursuant to a
1998-2 Series Supple-
<PAGE>
 
ment to the Pooling and Servicing Agreement (the "Series Supplement"), dated as
of August 1, 1998 among GTFFC, as transferor, Green Tree, as Servicer, and the
Trustee, as trustee. The Pooling and Servicing Agreement, as supplemented by the
Series Supplement, is hereinafter referred to as the "Pooling and Servicing
Agreement." $21,250,000 principal amount of Class C Certificates (the "Class C
Certificates"), $16,250,000 principal amount of Class D Certificates (the "Class
D Certificates") and the Exchangeable Transferor's Certificate (together with
the Offered Certificates, the Class C Certificates and the Class D Certificates,
the "Certificates") will also be issued pursuant to the Pooling and Servicing
Agreement. The assets of the Trust will consist of (i) all wholesale receivables
(the "Receivables") generated from time to time in a portfolio of revolving
financing arrangements between Green Tree and certain dealers in consumer and
commercial products (the "Accounts") satisfying certain criteria described in
the Prospectus, (ii) all funds collected from Obligors in respect of the
Receivables, (iii) all right, title, and interest of GTFFC in, to, and under a
receivables purchase agreement (the "Purchase Agreement"), dated as of December
1, 1995 between GTFFC and Green Tree, (iv) all funds on deposit in the Trust
Accounts, (v) Recoveries, (vi) an assignment of a security interest in the
Collateral Security, (vii) GTFFC's rights under all Floorplan Agreements, and
(viii) proceeds of the foregoing. The Receivables will be purchased from Green
Tree by GTFFC pursuant to the Purchase Agreement and thereafter transferred to
the Trust. The forms of the Pooling and Servicing Agreement and the Series
Supplement have been filed as exhibits to the Registration Statement.
Capitalized terms used but not defined herein shall have the meanings given to
them in the Pooling and Servicing Agreement and the Purchase Agreement
(together, the "Designated Agreements").

         The Certificates are more fully described in a Registration Statement
that GTFFC has furnished to you. The terms "you" or "Underwriters" as used
herein, unless the context otherwise requires, shall mean you, acting severally
and not jointly under this Agreement. The term "Representative" refers to J.P.
Morgan Securities Inc. acting as Representative of the Underwriters.

         The offering of the Offered Certificates will be made through you.
GTFFC and Green Tree will also enter into an agreement (the "Terms Agreement")
providing for the sale of such Offered Certificates to, and the purchase thereof
by, you, severally and not jointly. The Terms Agreement shall specify, among
other things, the price or prices at which the Offered Certificates are to be
purchased by the Underwriters from the Trust and the initial public offering
price or prices or the method by which the price or prices at which the Offered
Certificates are to be sold will be determined. The Terms


                                       2
<PAGE>
 
Agreement, which shall be substantially in the form of Exhibit A hereto, may
take the form of an exchange of any standard form of written telecommunication
between you and GTFFC. The offering of the Offered Certificates will be governed
by this Agreement, as supplemented by the Terms Agreement.

         GTFFC has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-1 (Nos. 333-59865-01 and
333-59865) and a related preliminary prospectus for the registration of the
Offered Certificates under the Securities Act of 1933 (the "1933 Act"), and has
filed, and proposes to file, such amendments thereto as may have been required
to the date hereof pursuant to the 1933 Act and the rules of the Commission
thereunder (the "Regulations"). The registration statement (including the
prospectus constituting a part thereof and the information, if any, deemed to be
part thereof pursuant to Rule 430A(b) of the Regulations) in the form in which
it became effective under the Act on August 19, 1998 (the "Effective Date"),
including the exhibits thereto, is referred to herein as the "Registration
Statement," and the prospectus dated August 20, 1998 in the form in which it was
most recently filed with the Commission (including the information, if any,
deemed to be part thereof pursuant to Rule 430A(b) of the Regulations) is
referred to herein as the "Prospectus", except that if any revised prospectus
shall be provided to you by GTFFC for use in connection with the offering of the
Offered Certificates which differs from the Prospectus on file at the Commission
at the time the Registration Statement becomes effective (whether or not such
revised prospectus is required to be filed by GTFFC pursuant to Rule 424(b) of
the Regulations), the term "Prospectus" shall refer to such revised prospectus
from and after the time it is first provided to you for such use.

         GTFFC understands that you propose to make a public offering of the
Offered Certificates as soon as you deem advisable after this Agreement and the
Terms Agreement have been executed and delivered; provided that the Class A
Certificates may be sold to a single trust.

         SECTION 1. Representations and Warranties. Each of GTFFC and Green Tree
represents and warrants to you as of the date hereof, as of the date of the
Terms Agreement (the "Representation Date") and as of the Closing Time, (as
defined below) as follows:

                  (a) The Registration Statement and the Prospectus do, on the
         Effective Date and on the date hereof, and as of the Representation
         Date will, comply in all material respects with the requirements of the
         1933 Act and the Regulations. The Registration Statement, on the
         Effective Date and on the


                                        3
<PAGE>
 
         date hereof, did not and does not, and as of the Representation Date
         and the Closing Time will not, contain any untrue statement of a
         material fact or omit to state any material fact required to be stated
         therein or necessary to make the statements therein not misleading. The
         Prospectus, as amended or supplemented on the Effective Date and on the
         date hereof, did not and does not, and as amended or supplemented as of
         the Representation Date and the Closing Time will not, contain any
         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; provided,
         however, that the representations and warranties in this subsection
         shall not apply to statements in, or omissions from, the Registration
         Statement or Prospectus made in reliance upon and in conformity with
         information furnished to GTFFC in writing by any Underwriter through
         the Representative expressly for use in the Registration Statement or
         Prospectus. There are no contracts or documents of GTFFC which are
         required to be filed as exhibits to the Registration Statement pursuant
         to the 1933 Act or the Regulations which have not been so filed or
         incorporated by reference therein.

                  (b) Each of GTFFC and Green Tree has been duly incorporated
         and is validly existing as a corporation in good standing under the
         laws of the state of Delaware, with corporate power and authority 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 Designated Agreements and the
         Terms Agreement as each of GTFFC and Green Tree may be a party to; and
         each of GTFFC and Green Tree is duly qualified as a foreign corporation
         to transact business and is in good standing in each jurisdiction in
         which the ownership or lease of its properties or the conduct of its
         business under the Designated Agreements requires such qualification.

                  (c) Neither GTFFC nor Green Tree is in violation of its
         certificate of incorporation or by-laws or is in default in the
         performance or observance of any material obligation, agreement,
         covenant or condition contained in any contract, indenture, mortgage,
         loan agreement, note, lease or other instrument to which it is a party
         or by which it or its properties may be bound, which default might
         result in any material adverse change in its financial condition,
         earnings, affairs or business or which may materially and adversely
         affect the properties or assets thereof.



                                        4
<PAGE>
 
                  (d) The execution and delivery of this Agreement, the Terms
         Agreement and the Designated Agreements by GTFFC and Green Tree are
         within the corporate power of GTFFC and Green Tree, respectively, and
         have been duly authorized by all necessary corporate action on the part
         of GTFFC and Green Tree, respectively; and neither the issuance and
         sale of the Offered Certificates to the Underwriters, nor the execution
         and delivery of this Agreement, the Terms Agreement or the Designated
         Agreements by GTFFC or Green Tree, nor the consummation by GTFFC or
         Green Tree of any of the transactions therein contemplated, nor
         compliance by GTFFC or Green Tree with the provisions hereof or
         thereof, will materially conflict with or result in a material breach
         of, or constitute a material default under, any of the provisions of
         any law, governmental rule, regulation, judgment, decree or order
         binding on GTFFC or Green Tree or their respective properties or the
         certificate of incorporation or by-laws of GTFFC or Green Tree, or any
         of the provisions of any indenture, mortgage, contract or other
         instrument to which GTFFC or Green Tree is a party or by which each is
         bound or result in the creation or imposition of any lien, charge or
         encumbrance upon any of their respective properties pursuant to the
         terms of any such indenture, mortgage, contract or other instrument.

                  (e) This Agreement has been, and the Terms Agreement when
         executed and delivered as contemplated hereby and thereby will have
         been, duly authorized, executed and delivered by each of GTFFC and
         Green Tree, and each constitutes, or will constitute when so executed
         and delivered, a legal, valid and binding instrument enforceable
         against GTFFC and Green Tree in accordance with its terms, subject (i)
         to applicable bankruptcy, reorganization, insolvency, moratorium or
         other similar laws affecting creditors' rights generally, (ii) as to
         enforceability, to general principles of equity (regardless of whether
         enforcement is sought in a proceeding in equity or at law) and (iii) as
         to enforceability with respect to rights of indemnity thereunder, to
         limitations of public policy under securities laws.

                  (f) The Designated Agreements, when executed and delivered as
         contemplated hereby and thereby, will have been duly authorized,
         executed and delivered by each of GTFFC and Green Tree, and will
         constitute, when so executed and delivered, a legal, valid and binding
         agreements, enforceable against GTFFC and Green Tree in accordance with
         their respective terms, subject (i) to applicable bankruptcy,
         reorganization, insolvency, moratorium or other similar laws affecting
         creditors' rights generally and (ii)




                                        5
<PAGE>
 
         as to enforceability, to general principles of equity (regardless of
         whether enforcement is sought in a proceeding in equity or at law).

                  (g) As of the Closing Time, the Certificates will have been
         duly and validly authorized, and, when executed and authenticated as
         specified in the Pooling and Servicing Agreement, will be validly
         issued and outstanding and will be entitled to the benefits of the
         Pooling and Servicing Agreement, and will be binding obligations of the
         Trust to the extent provided in the Pooling and Servicing Agreement.

                  (h) No filing or registration with, notice to or consent,
         approval, authorization or order of any court or governmental authority
         or agency is required for the consummation by GTFFC or Green Tree of
         the transactions contemplated by this Agreement, any of the Designated
         Agreements or the Terms Agreement, except such as may be required under
         the 1933 Act, the Regulations, or state securities or Blue Sky laws.

                  (i) There are no proceedings or investigations pending or, to
         the best knowledge of GTFFC or Green Tree, threatened against GTFFC or
         Green Tree before any governmental authority (i) asserting the
         invalidity of any Designated Agreement or of this Agreement, (ii)
         seeking to prevent the consummation of any of the transactions
         contemplated thereby, (iii) seeking any determination or ruling that
         would materially and adversely affect the performance by GTFFC or Green
         Tree of its obligations thereunder or the ability of Green Tree to
         originate Receivables, (iv) seeking any determination or ruling that
         would materially and adversely affect the validity or enforceability
         thereof or (v) seeking to affect adversely the tax attributes of the
         Trust.

                  (j) Each of GTFFC and Green Tree possesses all material
         licenses, certificates, authorities or permits issued by the
         appropriate state, federal or foreign regulatory agencies or bodies
         necessary to conduct the business now operated by it or as described in
         the Prospectus and has not received any notice of proceedings relating
         to the revocation or modification of any such license, certificate,
         authority or permit which, singly or in the aggregate, if the subject
         of an unfavorable decision, ruling or finding, would materially and
         adversely affect the conduct of the business, operations, financial
         condition or income of GTFFC or Green Tree, respectively.



                                        6
<PAGE>
 
                  (k) Neither GTFFC, Green Tree nor the Trust will be subject to
         registration as an "investment company" under the Investment Company
         Act of 1940, as amended (the "1940 Act").

                  (l) The Certificates and the Designated Agreements conform in
         all material respects to the descriptions thereof contained in the
         Prospectus.

                  (m) At the Closing Time, the Offered Certificates shall have
         received the certificate ratings specified in the Terms Agreement.

                  (n) At the Closing Time, each of the representations and
         warranties of GTFFC and Green Tree set forth in any of the Designated
         Agreements will be true and correct.

         SECTION 2. Purchase and Sale. The commitment of the Underwriters to
purchase the Offered Certificates pursuant to the Terms Agreement shall be
deemed to have been made on the basis of the representations and warranties
herein contained and shall be subject to the terms and conditions herein set
forth.

         Payment of the purchase price for, and delivery of, the Offered
Certificates to be purchased by you shall be made at the office of Dorsey &
Whitney LLP, 220 South Sixth Street, Minneapolis, Minnesota 55402, or at such
other place as shall be agreed upon by you and GTFFC, at such time or date as
shall be agreed upon by you and GTFFC and Green Tree in the Terms Agreement
(such time and date being referred to as the "Closing Time"). Payment of the
purchase price for the Offered Certificates shall be made to or at the direction
of GTFFC, in immediately available Federal funds wired to such bank as may be
designated by GTFFC. The Offered Certificates shall be in such denominations
specified by the Representative and registered in the name of Cede & Co., unless
the Representative shall otherwise specify in writing at least two business days
prior to the Closing Time. The Offered Certificates, which may be in temporary
form, will be made available for examination and packaging by you no later than
12:00 noon on the first business day prior to the Closing Time.

         SECTION 3. Covenants of GTFFC and Green Tree. GTFFC and Green Tree
covenant with you as follows:

                  (a) Immediately following the execution of this Agreement and
         the Terms Agreement, GTFFC will prepare the Prospectus setting forth
         the principal amount of the Offered Certificates, the price at which
         the Offered Certificates are to be purchased by you, either the initial
         public offering price or the method by which the price at which the




                                        7
<PAGE>
 
         Offered Certificates are to be sold will be determined, the selling
         concession(s) and reallowance(s), if any, and such other information as
         you and GTFFC deem appropriate in connection with the offering of the
         Offered Certificates. GTFFC will, to the extent required by the
         Regulations, promptly transmit copies of the Prospectus to the
         Commission for filing pursuant to Rule 424 under the 1933 Act and will
         furnish to you as many copies of the Prospectus as you shall reasonably
         request.

                  (b) If at any time when the Prospectus is required by the 1933
         Act to be delivered in connection with sales of the Offered
         Certificates by you, any event shall occur or condition exist as a
         result of which it is necessary, in the opinion of your counsel,
         counsel for GTFFC, or otherwise, to further amend or supplement the
         Prospectus in order that the Prospectus will not include an untrue
         statement of a material fact or omit to state any material fact
         necessary to make the statements therein, in the light of circumstances
         existing at the time it is delivered to a purchaser, not misleading or
         if it shall be necessary, in the opinion of any such counsel or
         otherwise, at any such time to amend or supplement the Registration
         Statement or the Prospectus in order to comply with the requirements of
         the 1933 Act or the Regulations thereunder, GTFFC will promptly prepare
         and will (1) file with the Commission such amendment or supplement as
         may be necessary to correct such untrue statement or omission or to
         make the Registration Statement comply with such requirements and (2)
         within two business days will furnish you with as many copies of the
         Prospectus, as so amended or supplemented, as you shall reasonably
         request.

                  (c) GTFFC will give you reasonable notice of any intention to
         file any amendment to the Registration Statement or any amendment or
         supplement to the Prospectus, whether pursuant to the 1933 Act or
         otherwise (other than reports to be filed pursuant to the Securities
         Exchange Act of 1934, as amended (the "1934 Act")), and GTFFC will
         furnish you with copies of any such amendment or supplement or other
         documents proposed to be filed a reasonable time in advance of filing,
         and will not file any such amendment or supplement or other documents
         in a form to which you or your counsel shall object.

                  (d) GTFFC will notify you immediately, and confirm the notice
         in writing (i) of the effectiveness of any amendment to the
         Registration Statement, (ii) of the mailing or the delivery to the
         Commission for filing of any supplement to the Prospectus or any
         document, other than reports to be filed pursuant to the 1934 Act,
         (iii) of the receipt of any




                                        8
<PAGE>
 
         comments from the Commission with respect to the Registration Statement
         or the Prospectus, (iv) of any request by the Commission for any
         amendment to the Registration Statement or any amendment or supplement
         to the Prospectus or for additional information, and (v) of the
         issuance by the Commission of any stop order suspending the
         effectiveness of the Registration Statement or suspension of the
         qualification of the Certificates or the initiation of any proceedings
         for that purpose. GTFFC will make every reasonable effort to prevent
         the issuance of any such stop order and, if any such stop order is
         issued, to obtain the lifting thereof at the earliest possible moment.

                  (e) GTFFC will deliver to you as many signed and as many
         conformed copies of the Registration Statement (as originally filed)
         and of each amendment thereto (including exhibits filed therewith or
         incorporated by reference therein) as you may reasonably request.

                  (f) GTFFC will endeavor, in cooperation with you, to qualify
         the Certificates for offering and sale under the applicable securities
         laws of such states and other jurisdictions of the United States as you
         may designate, and will maintain or cause to be maintained such
         qualifications in effect for as long as may be required for the
         distribution of the Certificates. GTFFC will file or cause the filing
         of such statements and reports as may be required by the laws of each
         jurisdiction in which the Certificates have been qualified as above
         provided.

                  (g) The Servicer will file the Settlement Statement on Form
         8-K for a period of twelve months following the applicable Closing
         Time.

         SECTION 4. Conditions of Underwriter's Obligations. The obligations of
the Underwriters to purchase the Offered Certificates pursuant to the Terms
Agreement are subject to the accuracy of the representations and warranties on
the part of GTFFC and Green Tree herein contained, to the accuracy of the
statements of officers of GTFFC and Green Tree made pursuant hereto, to the
performance by each of GTFFC and Green Tree of all of its obligations hereunder
and to the following further conditions:

         (a) The Registration Statement shall have become effective not later
than 4:00 p.m., New York time, on the day following the date of this Agreement
or such later date as shall have been consented to by the Representative; and at
the Closing Time (i) no stop order suspending the effectiveness of the
Registration Statement shall have been issued or proceedings therefor ini-




                                        9
<PAGE>
 
tiated or threatened by the Commission, (ii) the Offered Certificates shall have
received the ratings specified in the Terms Agreement, and (iii) there shall not
have come to your attention any facts that would cause you to believe that the
Prospectus, at the time it was required to be delivered to a purchaser of the
Offered Certificates, contained an untrue statement of a material fact or
omitted to state a material fact necessary in order to make the statements
therein, in light of the circumstances existing at such time, not misleading. If
GTFFC has elected to rely upon Rule 430A of the Regulations, the price of the
Offered Certificates and any price-related information previously omitted from
the effective Registration Statement pursuant to such Rule 430A shall have been
transmitted to the Commission for filing pursuant to Rule 424(b) of the
Regulations within the prescribed time period, and prior to Closing Time GTFFC
shall have provided evidence satisfactory to the Representative of such timely
filing, or a post-effective amendment providing such information shall have been
promptly filed and declared effective in accordance with the requirements of
Rule 430A of the Regulations.

         (b) At or prior to the Closing Time you shall have received:

         (1) The favorable opinion (the "Underwriter Opinion"), dated as of the
Closing Time, of Dorsey & Whitney LLP, special counsel for GTFFC and Green Tree,
in form and substance satisfactory to you and your counsel, to the effect that:

                                  (i) Each of GTFFC and Green Tree has been duly
                  organized and is validly existing as a corporation in good
                  standing under the laws of the State of Delaware.

                                 (ii) The execution and delivery by each of
                  GTFFC and Green Tree of this Agreement, the Terms Agreement,
                  the Purchase Agreement and the Pooling and Servicing Agreement
                  and the signing of the Registration Statement by GTFFC are
                  within the corporate power of GTFFC and Green Tree,
                  respectively, and each has been duly authorized by all
                  necessary corporate action on the part of each of GTFFC and
                  Green Tree.

                                (iii) This Agreement and the applicable Terms
                  Agreement have been duly authorized, executed and delivered by
                  each of GTFFC and Green Tree, and each is a valid and binding
                  obligation of each of GTFFC and Green Tree enforceable against
                  GTFFC and Green Tree in accordance with its terms, except that
                  (A) such enforcement may be subject to applicable bankruptcy,
                  insolvency, reorganization, moratorium or other similar laws
                  now or hereafter in effect relating to creditors'




                                       10
<PAGE>
 
                  or secured parties' rights generally, (B) such enforcement may
                  be limited by general principles of equity, including (without
                  limitation) concepts of materiality, reasonableness, good
                  faith and fair dealing, and other similar doctrines affecting
                  the enforceability of agreements generally (regardless of
                  whether enforcement is sought in a proceeding in equity or at
                  law), and (C) the enforceability as to rights to indemnity
                  thereunder is subject to the effect of federal and state
                  securities laws and public policy relating thereto.

                                 (iv) The Designated Agreements have been duly
                  authorized, executed and delivered by GTFFC and Green Tree,
                  and are the valid and binding obligations of GTFFC and Green
                  Tree enforceable against GTFFC and Green Tree in accordance
                  with their respective terms, except that (A) such enforcement
                  may be subject to bankruptcy, insolvency, reorganization,
                  moratorium or other similar laws now or hereafter in effect
                  relating to creditors' rights generally and (B) such
                  enforcement may be limited by general principles of equity
                  (regardless of whether enforcement is sought in a proceeding
                  in equity or at law).

                                  (v) None of the transfer of the Receivables to
                  the Trust, the issue and sale of the Certificates or the
                  consummation of the transactions contemplated herein nor the
                  fulfillment of the terms hereof or of the Designated
                  Agreements will, to the best of such counsel's knowledge,
                  conflict with or constitute a breach of, or default under, any
                  contract, indenture, mortgage, loan agreement, note, lease or
                  other instrument to which GTFFC or Green Tree is a party or by
                  which either of them may be bound or to which the property or
                  assets of either of them are subject (which contracts,
                  indentures, mortgages, loan agreements, notes, leases and
                  other such instruments have been identified by GTFFC and Green
                  Tree to such counsel), nor will such action result in any
                  violation of the provisions of the certificate of
                  incorporation or by-laws of GTFFC or Green Tree or, to the
                  best of such counsel's knowledge, any order or regulation
                  known to such counsel to be applicable to GTFFC or Green Tree
                  of any state or federal court, regulatory body, administrative
                  agency, governmental body or arbitrator having jurisdiction
                  over GTFFC or Green Tree.

                                 (vi) The Certificates have been duly authorized
                  and, when executed and authenticated as specified in the
                  Pooling and Servicing Agreement and delivered and,




                                       11
<PAGE>
 
                  in the case of the Offered Certificates, paid for pursuant to
                  this Agreement and the Terms Agreement, will be duly issued
                  and entitled to the benefits of the Pooling and Servicing
                  Agreement.

                                (vii) The Receivables are either "chattel
                  paper", "accounts" or "general intangibles" under the UCC. The
                  Purchase Agreement creates, in favor of GTFFC, a valid
                  security interest (as such term is defined in Section 1-201 of
                  the UCC) in the Receivables now existing and hereafter created
                  that are either chattel paper or accounts, which security
                  interest, if characterized as a transfer for security, will
                  secure the "Secured Obligations" (as defined in the Pooling
                  and Servicing Agreement) and, in the case of Receivables that
                  are general intangibles, is effective to transfer Green Tree's
                  ownership interest in such Receivables to GTFFC. The Pooling
                  and Servicing Agreement creates, in favor of the Trustee for
                  the benefit of the Certificateholders, a valid security
                  interest (as such term is defined in Section 1-201 of the UCC)
                  in the Receivables now existing and hereafter created, which
                  security interest, if characterized as a transfer for
                  security, will secure the "Secured Obligations" (as defined in
                  the Pooling and Servicing Agreement), and, in the case of
                  Receivables that are general intangibles, is effective to
                  transfer GTFFC's ownership interest in such Receivables to the
                  Trustee. The perfection and the effect of perfection or
                  nonperfection of the ownership or security interests in the
                  Receivables created pursuant to the Purchase Agreement or the
                  Pooling and Servicing Agreement will be governed by the laws
                  of the State of Minnesota. The UCC-1 financing statements are
                  in appropriate form for filing with the Secretary of State of
                  Minnesota. Upon the filing of the UCC-1 financing statements
                  in the office of the Secretary of State of Minnesota, GTFFC
                  will have a perfected ownership interest in the Receivables,
                  which ownership interest shall have priority over any other
                  security interest in the Receivables, and the Trustee will
                  have a perfected ownership or security interest in the
                  Receivables, which ownership or security interest shall have
                  priority over any other security interest in the Receivables.
                  In rendering such opinion, such counsel may take customary
                  exceptions acceptable to you.

                               (viii) To the best of such counsel's knowledge,
                  no filing or registration with or notice to or consent,
                  approval, authorization or order of any Minnesota or federal
                  court or governmental authority or agency is




                                       12
<PAGE>
 
                  required to be obtained by GTFFC or Green Tree for the
                  consummation by GTFFC or Green Tree of the transactions
                  contemplated by this Agreement, the Terms Agreement or the
                  Designated Agreements, except such as may be required under
                  the 1933 Act or the Regulations, or state securities or Blue
                  Sky laws.

                                 (ix) The Registration Statement is effective
                  under the 1933 Act and, to the best of such counsel's
                  knowledge and information, no stop order suspending the
                  effectiveness of the Registration Statement has been issued
                  under the 1933 Act or proceedings therefor initiated or
                  threatened by the Commission.

                                  (x) The Pooling and Servicing Agreement is not
                  required to be qualified under the Trust Indenture Act of
                  1939, as amended.

                                 (xi) To the best of such counsel's knowledge,
                  there are no contracts or documents which are required to be
                  filed as exhibits to the Registration Statement pursuant to
                  the 1933 Act or the Regulations thereunder which have not been
                  so filed or incorporated by reference.

                                (xii) The statements in the Prospectus under the
                  heading "Certain Federal Income Tax Consequences," to the
                  extent that they constitute statements of law or legal
                  conclusions as to the likely outcome of material issues under
                  the federal income tax laws, have been prepared or reviewed by
                  such counsel and are correct in all material respects.

                               (xiii) The Trust created by the Pooling and
                  Servicing Agreement is not, and will not as a result of the
                  offer and sale of the Offered Certificates as contemplated in
                  the Prospectus and in this Agreement become, an "investment
                  company" as such term is defined in the 1940 Act.

                                (xiv) The statements in the Prospectus under the
                  caption "Description of the Certificates," insofar as such
                  statements purport to summarize certain terms of the
                  Certificates and the Pooling and Servicing Agreement,
                  constitute a fair and accurate summary of such documents.

                                 (xv) The statements in the Prospectus under the
                  headings "Risk Factors--Transfer of the Receivables;
                  Insolvency Risk Considerations," "Certain Legal Aspects




                                       13
<PAGE>
 
                  of the Receivables--Certain Matters Relating to Bankruptcy"
                  and "Employee Benefit Plan Considerations," to the extent that
                  they constitute statements of law or legal conclusions with
                  respect thereto, have been reviewed by such counsel and are
                  correct in all material respects.

                                (xvi) The Certificates, the Designated
                  Agreements and the Underwriting Agreement conform in all
                  material respects to the descriptions thereof contained in the
                  Prospectus.

                               (xvii) The Registration Statement and the
                  Prospectus (other than the financial statements and other
                  financial, statistical and numerical information included
                  therein, as to which no opinion need be rendered) as of their
                  respective effective or issue dates, complied as to form in
                  all material respects with the requirements of the 1933 Act
                  and the Regulations thereunder.

                              (xviii) The execution, delivery and performance by
                  GTFFC or Green Tree of the Designated Agreements do not
                  require the consent or approval of, the giving of notice to,
                  the registration with, or the taking of any other action in
                  respect of any federal, state or other governmental agency or
                  authority which has not previously been effected.

                                (xix) To such counsel's knowledge, there are no
                  pending or overtly threatened lawsuits or claims against GTFFC
                  or Green Tree or relating to the transactions contemplated by
                  this Agreement or the Designated Agreements which, if
                  adversely determined, would have a materially adverse effect
                  on the transactions contemplated by this Agreement and the
                  Designated Agreements.

         Such counsel shall deliver to you such additional opinions addressing
the transfer by Green Tree to GTFFC and the transfer by GTFFC to the Trust of
each of its right, title and interest in and to the Receivables and other
property included in the Trust on the Closing Time as may be reasonably required
by the Rating Agencies rating the Offered Certificates.

         Such counsel shall state that it has participated in conferences with
officers and other representatives of GTFFC and Green Tree, your counsel,
representatives of the independent accountants for GTFFC and Green Tree and you
at which the contents of the Registration Statement and the Prospectus were




                                       14
<PAGE>
 
discussed and, although such counsel is not passing upon and does not assume
responsibility for, the factual accuracy, completeness or fairness of the
statements contained in the Registration Statement or the Prospectus (except as
stated in paragraphs (xii), (xiv), (xv) and (xvi) above) and has made no
independent check or verification thereof for the purpose of rendering this
opinion, on the basis of the foregoing, nothing has come to their attention that
leads such counsel to believe that the Registration Statement, when it became
effective, contained any 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 that the Registration Statement and the
Prospectus on the date of this Agreement and the Terms Agreement contained, and
the Prospectus at Closing Time contains, any untrue statement of a material fact
or omitted or omits 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, except that such counsel need express no view with respect
to the financial statements, schedules and other financial, statistical and
numerical data included in or incorporated by reference into the Registration
Statement or the Prospectus.

         Such counsel may state that they are admitted to practice only in the
State of Minnesota, that they are not admitted to the Bar in any other State and
are not experts in the law of any other State and to the extent that the
foregoing opinions concern the laws of any other State such counsel may rely
upon the opinion of counsel satisfactory to you and admitted to practice in such
jurisdiction. Any opinions relied upon by such counsel as aforesaid shall be
addressed to you and shall be delivered together with the opinion of such
counsel, which shall state that such counsel believes that their reliance
thereon is justified.

                  (2) The favorable opinion, dated as of the applicable Closing
         Time, of Joel H. Gottesman, Senior Vice President and General Counsel
         to Green Tree, as Servicer of the Receivables, in form and substance
         satisfactory to you and your counsel, to the effect that:

                                  (i) There are no pending or, to his knowledge,
                  threatened litigation or administrative proceeding of or
                  before any court, tribunal or governmental agency, authority
                  or body or any arbitrator which, if adversely determined,
                  would have a material adverse effect on the financial
                  condition of GTFFC or Green Tree.

                                 (ii) Each of GTFFC and Green Tree is qualified
                  to do business, and is in good standing, as a foreign
                  corporation in each U.S. jurisdiction in which the




                                       15
<PAGE>
 
                  character of the business owned or leased by it makes such
                  qualification necessary, except where the failure to be so
                  qualified would not have a material adverse effect on the
                  financial condition of Green Tree.

                                (iii) Each of GTFFC and Green Tree possesses all
                  material licenses, certificates, authorities or permits issued
                  by the appropriate state or federal regulatory agencies or
                  bodies necessary to conduct the business now conducted by it
                  and as described in the Prospectus, except to the extent that
                  the failure to have such licenses, certificates, authorities
                  or permits does not have a material adverse effect on the
                  Receivables or the Certificates or the financial condition of
                  GTFFC or Green Tree, and neither GTFFC nor Green Tree has
                  received any notice of proceedings relating to the revocation
                  or modification of any such license, certificate, authority or
                  permit which, singly or in the aggregate, if the subject of an
                  unfavorable decision, ruling or finding, would materially and
                  adversely affect the conduct of its business, operations or
                  financial condition.

                                 (iv) At the time of the transfer of the
                  Receivables to GTFFC, Green Tree owned the Receivables free
                  and clear of any lien, security interest, charge or other
                  interests of others, except such liens as are permitted under
                  the Pooling and Servicing Agreement.

                  (3) The favorable opinion of counsel to the Trustee, dated as
         of the Closing Time, addressed to you and in form and scope
         satisfactory to your counsel, to the effect that:

                                  (i) The Pooling and Servicing Agreement has
                  been duly authorized, executed and delivered by the Trustee
                  and is enforceable against the Trustee in accordance with its
                  terms, subject to customary and usual exceptions.

                                 (ii) The Trustee has full power and authority
                  to execute and deliver the Pooling and Servicing Agreement and
                  to perform its obligations thereunder.

                                (iii) To the best of such counsel's knowledge,
                  there are no actions, proceedings or investigations pending or
                  threatened against or affecting the Trustee before or by any
                  court, arbitrator, administrative agency or other governmental
                  authority which, if adversely decided, would materially and
                  adversely affect the ability of the Trustee to carry out the




                                       16
<PAGE>
 
                  transactions contemplated in the Pooling and Servicing
                  Agreement.

                                 (iv) No consent, approval or authorization of,
                  or registration, declaration or filing with, any court or
                  governmental agency or body of the jurisdiction of
                  incorporation of the Trustee is required for the execution,
                  delivery or performance by the Trustee of the Pooling and
                  Servicing Agreement.

         In rendering such opinion, such counsel may rely, as to matters of
fact, to the extent deemed proper and stated therein, on certificates of
responsible officers of the Trustee or public officials.

                  (4) The favorable opinion, dated as of the Closing Time, of
         counsel for the Underwriters with respect to the issue and sale of the
         Certificates, the Registration Statement, this Agreement, the
         Prospectus and other related matters as you may require.

         (c) You shall have received from Dorsey & Whitney LLP, special counsel
for GTFFC, an opinion, dated as of the Closing Time and satisfactory in form and
substance to the Representative and to counsel to the Underwriters, to the
effect that the Offered Certificates will be characterized for Minnesota income
and franchise tax purposes as indebtedness secured by the Receivables and
Certificateholders not otherwise subject to taxation in Minnesota will not be
subject to tax in respect of the Offered Certificates.

         (d) At the Closing Time you shall have received a certificate of the
President or a Vice President of each of GTFFC and Green Tree, dated as of such
Closing Time, to the effect that (i) the representations and warranties of each
of GTFFC and Green Tree contained in Section 1 are true and correct with the
same force and effect as though such Closing Time were the Representation Date;
(ii) GTFFC or Green Tree, as applicable, has complied in all material respects
with all the agreements and satisfied all the conditions on its part to be
performed or satisfied under this Agreement at or prior to the Closing Time;
(iii) no stop order suspending the effectiveness of the Registration Statement
has been issued and no proceedings for that purpose have been initiated or, to
GTFFC's or Green Tree's knowledge, threatened by the Commission as of the
Closing Time; and (iv) nothing has come to such person's attention that would
lead such person to believe that the Prospectus contains an untrue statement of
a material fact or omits 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.




                                       17
<PAGE>
 
         (e) You shall have received from KPMG Peat Marwick LLP, or other
independent certified public accountants acceptable to you, a letter, dated as
of the Closing Time, delivered at such time, in the form heretofore agreed to.

         (f) At the Closing Time you shall have received, addressed to you, any
additional opinions delivered by counsel pursuant to the request of the Rating
Agencies rating the Offered Certificates.

         (g) The Representative shall have received facsimile confirmation from
a filing service that (i) a copy of the UCC-1 financing statement on Form UCC-1
has been filed with the Secretary of State of the State of Minnesota with
respect to the transfer of the Receivables by Green Tree to GTFFC pursuant to
the Purchase Agreement, identifying the Receivables as collateral and naming
Green Tree as debtor and GTFFC as the secured party and (ii) a copy of the UCC-1
financing statement on Form UCC-1 has been filed with the Secretary of State of
the State of Minnesota with respect to the transfer of the Receivables by GTFFC
to the Trustee pursuant to the Pooling and Servicing Agreement, identifying the
Receivables as collateral and naming GTFFC as debtor and the Trustee as the
secured party.

         (h) At the Closing Time, counsel for the Underwriters shall have been
furnished with such documents and opinions as they reasonably may require for
the purpose of enabling them to pass upon the issuance and sale of the Offered
Certificates as herein contemplated and the related proceedings or in order to
evidence the accuracy and completeness of any of the representations and
warranties, or the fulfillment of any of the conditions herein contained; and
all proceedings taken by GTFFC and Green Tree in connection with the issuance
and sale of the Certificates as herein contemplated shall be satisfactory in
form and substance to you and counsel for the Underwriters.

         (i) As of the Closing Time, each of the Designated Agreements will have
been duly authorized, executed and delivered by, and will constitute a legal,
valid and binding obligation of, and will be enforceable against each of GTFFC
and Green Tree, in accordance with its terms, subject to applicable bankruptcy,
reorganization, insolvency, moratorium or other similar laws affecting
creditors' rights generally, and as to enforceability, to general principles of
equity (regardless of whether enforcement is sought in a proceeding in equity or
at law).

         (j) At the Closing Time, Standard & Poor's Ratings Services, A Division
of The McGraw-Hill Companies, Inc. shall have delivered a letter to GTFFC
stating that the Class A Certificates are rated "AAA" and the Class B
Certificates are




                                       18
<PAGE>
 
rated "A" and Moody's Investor Service, Inc. shall have delivered a letter to
GTFFC stating that the Class A Certificates are rated "Aaa" and the Class B
Certificates are rated "A3" and Fitch IBCA, Inc. shall have delivered a letter
to GTFFC stating that the Class A Certificates are rated "AAA" and the Class B
Certificates are rated "AA-."

         In addition to the above conditions, Green Tree and GTFFC understand
that Green Tree and Morgan Guaranty Trust Company of New York ("Morgan") are
parties to the 1992 ISDA Master Agreement (Multi-currency Cross-border) and the
confirmation thereunder that relates to the Series 1998-A Certificates and the
Series 1995-1 Certificates, dated August 3, 1998 (the "Green Tree Swap
Agreement"). Green Tree and GTFFC agree that, pursuant to the Green Tree Swap
Agreement, Morgan will be permitted to retain proceeds from the issuance of the
Offered Certificates if Green Tree fails to satisfy any of its obligations under
the Green Tree Swap Agreement.

         If any condition specified in this Section shall not have been
fulfilled when and as required to be fulfilled, this Agreement and the Terms
Agreement may be terminated by you by notice to GTFFC at any time at or prior to
the Closing Time, and such termination shall be without liability of any party
to any other party except as provided in Section 5.

         SECTION 5. Payment of Expenses. Green Tree will pay all expenses
incident to the performance of the obligations of GTFFC or Green Tree under this
Agreement, including without limitation those related to (i) the filing of the
Registration Statement and all amendments thereto, (ii) the printing and
delivery to the Underwriters, in such quantities as you may reasonably request,
of copies of this Agreement, the Terms Agreement, any agreements among
underwriters and selling agreements and the Underwriters' questionnaires and
powers of attorney, (iii) the preparation, issuance and delivery of the Offered
Certificates to the Underwriters, (iv) the fees and disbursements of GTFFC's and
Green Tree's counsel and accountants, (v) the qualification of the Offered
Certificates under securities and Blue Sky laws and the determination of the
eligibility of the Offered Certificates for investment in accordance with the
provisions of Section 3(g), including filing fees, and the fees and
disbursements of your counsel in connection therewith and in connection with the
preparation of any Blue Sky Survey and Legal Investment Survey, (vi) the
printing and delivery to the Underwriters, in such quantities as you may
reasonably request, hereinafter stated, of copies of the Registration Statement
and Prospectus and all amendments and supplements thereto, and of any Blue Sky
Survey and Legal Investment Survey, (vii) the printing and delivery to the
Underwriters, in such quantities as you may reasonably




                                       19
<PAGE>
 
request, of copies of the Pooling and Servicing Agreement, (viii) the fees
charged by the Rating Agencies for rating the Offered Certificates, (ix) the
fees and expenses incurred in connection with the listing of the Offered
Certificates on any securities exchange, (x) the fees and expenses, if any,
incurred with respect to the National Association of Securities Dealers, Inc.,
including the fees and disbursements of counsel for you in connection therewith
and (xi) the fees and expenses of the Trustee and its counsel.

         If this Agreement and the Terms Agreement is terminated by you in
accordance with the provisions of Section 4 or Section 9(i) hereof, Green Tree
shall reimburse you for all reasonable out-of-pocket expenses, including the
reasonable fees and disbursements of counsel for the Underwriters.

         SECTION 6. Indemnification. (a) GTFFC and Green Tree, jointly and
severally, agree to indemnify and hold harmless each Underwriter and each
person, if any, who controls any Underwriter within the meaning of Section 15 of
the 1933 Act as follows:

                  (i) against any and all loss, liability, claim, damage and 
expense whatsoever, as incurred, arising out of any untrue statement or alleged
untrue statement of a material fact contained in the Registration Statement (or
any amendment thereto), or the omission or alleged omission therefrom of a
material fact required to be stated therein or necessary to make the statements
therein not misleading or arising out of any untrue statement or alleged untrue
statement of a material fact contained in the Prospectus (or any amendment or
supplement thereto) or the omission or alleged omission therefrom of a material
fact necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading, unless such untrue
statement or omission or alleged untrue statement or omission was made in
reliance upon and in conformity with written information furnished to GTFFC by
any Underwriter through the Representative expressly for use in the Registration
Statement (or any amendment thereto) or the Prospectus (or any amendment or
supplement thereto);

                  (ii) against any and all loss, liability, claim, damage and 
expense whatsoever, as incurred, to the extent of the aggregate amount paid in
settlement of any litigation, or investigation or proceeding by any governmental
agency or body, commenced or threatened, or of any claim whatsoever based upon
any such untrue statement or omission, (A) if such settlement is effected with
the written consent of GTFFC, or (B) if such settlement is effected without the
written consent of GTFFC more than 30 days after receipt by GTFFC of a notice
from the Underwriters, substantially reflecting the proposed terms of such




                                       20
<PAGE>
 
settlement, to which GTFFC has not responded prior to the date
such settlement is effected; and

                  (iii) against any and all expenses whatsoever (including the
fees and disbursements of counsel chosen by you), reasonably incurred in
investigating, preparing to defend or defending against any litigation,
investigation or proceeding by any governmental agency or body commenced or
threatened, or any claim whatsoever based upon any such untrue statement or
omission, to the extent that any such expense is not paid under (i) or (ii)
above, which expenses shall be reimbursed as they are incurred.

         This indemnity agreement will be in addition to any liability which
either GTFFC or Green Tree may otherwise have.

         (b) Each Underwriter severally agrees to indemnify and hold harmless
each of GTFFC and Green Tree, each director of GTFFC and Green Tree, each of
GTFFC's officers who signed the Registration Statement, and each person, if any,
who controls either GTFFC or Green Tree within the meaning of Section 15 of the
1933 Act against any and all loss, liability, claim, damage and expense
described in the indemnity contained in subsection (a) of this Section, but only
with respect to untrue statements or omissions or alleged untrue statements or
omissions, made in the Registration Statement (or any amendment thereto) or the
Prospectus (or any amendment or supplement thereto) in reliance upon and in
conformity with written information furnished to GTFFC by any Underwriter
through the Representative expressly for use in the Registration Statement (or
any amendment thereto) or the Prospectus (or any amendment or supplement
thereto). This indemnity agreement will be in addition to any liability that
such Underwriter may otherwise have.

         (c) Each indemnified party shall give prompt notice to each
indemnifying party of any action commenced against it with respect to which
indemnity may be sought hereunder, although failure to so notify an indemnifying
party shall not relieve it from any liability that it may have otherwise than on
account of this indemnity agreement. An indemnifying party may participate at
its own expense in the defense of such action. In no event shall the
indemnifying parties be liable for the fees and expenses of more than one
counsel (in addition to local counsel) for all indemnified parties in connection
with any one action or separate but similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances.

         SECTION 7.  Contribution.  In order to provide for just and
equitable contribution in circumstances in which the indemnity
agreement provided for in Section 6 hereof is for any reason held




                                       21
<PAGE>
 
to be unenforceable by the indemnified parties although applicable in accordance
with its terms, GTFFC and Green Tree on the one hand, and the Underwriters on
the other, shall contribute to the aggregate losses, liabilities, claims,
damages and expenses of the nature contemplated by said indemnity agreement
incurred by GTFFC and Green Tree and one or more of the Underwriters (i) in such
proportion as shall be appropriate to reflect the relative benefit received by
the Underwriters, as represented by the percentage that the Underwriting
discount or discounts on the cover of the Prospectus bears to the initial public
offering price or prices as set forth thereon, and GTFFC and Green Tree, as
applicable, shall be responsible for the balance; or (ii) if the allocation
provided by clause (i) above is not permitted by applicable law, in such
proportion as is appropriate to reflect not only the benefit referred to in
clause (i) above but also the relative fault of GTFFC and Green Tree, as
applicable, on the one hand and the Underwriters on the other with respect to
statements or omissions which resulted in such loss, claim, damage or liability,
or action in respect thereof, as well as any other relevant equitable
considerations, provided, however, that no person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent
misrepresentation and, provided further, no Underwriter shall be required to
contribute any amount in excess of the amount by which the total price of the
Offered Certificates purchased by such Underwriter pursuant to the Terms
Agreement exceeds the amount of any damages which such Underwriter has otherwise
paid or become liable to pay by reason of any untrue or alleged untrue statement
or omission or alleged omission. For purposes of this Section, each person, if
any, who controls any Underwriter within the meaning of Section 15 of the 1933
Act shall have the same rights to contribution as the Underwriters and each
director of GTFFC and Green Tree, each officer of GTFFC who signed the
Registration Statement, and each person, if any, who controls GTFFC or Green
Tree within the meaning of Section 15 of the 1933 Act shall have the same rights
to contribution as GTFFC and Green Tree.

         SECTION 8. Representations, Warranties and Agreements to survive
Delivery. All representations, warranties and agreements contained in this
Agreement, or contained in certificates of Officers of GTFFC or Green Tree
submitted pursuant hereto, shall remain operative and in full force and effect,
regardless of any termination of this Agreement, or any investigation made by or
on behalf of the Underwriters or controlling person thereof, or by or on behalf
of GTFFC or Green Tree and shall survive delivery of any Offered Certificates to
the Underwriters.





                                       22
<PAGE>
 
         SECTION 9. Termination of Agreement. The Representative may terminate
this Agreement and the Terms Agreement, immediately upon notice to GTFFC, at any
time at or prior to the Closing Time (i) if there has been, since the date of
the Terms Agreement or since the respective dates as of which information is
given in the Registration Statement or the Prospectus, any change, or any
development involving a prospective change in, or affecting, the condition,
financial or otherwise, earnings, affairs or business of GTFFC or Green Tree
whether or not arising in the ordinary course of business, which in your
judgment would materially impair the market for, or the investment quality of,
the Offered Certificates, or (ii) if there has occurred any material adverse
change in the financial markets in the United States or if there has occurred
any outbreak of hostilities or other calamity or crisis the effect of which on
the financial markets of the United States is such as to make it, in the
judgment of the Representative, impracticable to market the Offered Certificates
or enforce contracts for the sale of the Offered Certificates, or (iii) if
trading in any securities of Green Tree has been suspended or limited by the
Commission or the New York Stock Exchange, or if trading generally on either the
New York Stock Exchange or the American Stock Exchange has been suspended, or
minimum or maximum prices for securities have been required, by either of said
exchanges or by order of the Commission or any other governmental authority, or
if a banking moratorium has been declared by either Federal, Minnesota or New
York authorities. In the event of any such termination, (A) the covenants set
forth in Section 3 with respect to the offering of the Offered Certificates
shall remain in effect so long as the Underwriters own any Offered Certificates
purchased pursuant to the Terms Agreement, and (B) the covenant set forth in
Section 3(c), the provisions of Section 5, the indemnity agreement set forth in
Section 6, the contribution provisions set forth in Section 7, and the
provisions of Sections 8 and 13 shall remain in effect.

         SECTION 10. Default by One or More of the Underwriters. If one or more
of the Underwriters participating in the offering of the Offered Certificates
shall fail at the Closing Time to pur- chase the Offered Certificates which it
or they are obligated to purchase hereunder and under the Terms Agreement (the
"Defaulted Certificates"), then the Representative shall have the right, within
24 hours thereafter, to make arrangements for one or more of the non-defaulting
Underwriters, or any other underwriters, to purchase all, but not less than all,
of the Defaulted Certificates in such amounts as may be agreed upon and upon the
terms herein set forth. If, however, you have not completed such arrangements
within such 24-hour period, then:

                  (1) if the aggregate principal amount of Defaulted
         Certificates does not exceed 10% of the aggregate principal




                                       23
<PAGE>
 
         amount of the Offered Certificates to be purchased pursuant to such
         Terms Agreement, the non-defaulting Underwriters shall be obligated to
         purchase the full amount thereof in the proportions that their
         respective underwriting obligations hereunder bear to the underwriting
         obligations of all such non-defaulting Underwriters, or

                  (2) if the aggregate principal amount of Defaulted
         Certificates exceeds 10% of the aggregate principal amount of the
         Certificates to be purchased pursuant to such Terms Agreement, the
         Terms Agreement shall terminate, without any liability on the part of
         any non-defaulting Underwriters.

         No action taken pursuant to this Section shall relieve any defaulting
Underwriters from liability with respect to any default of such Underwriters
under this Agreement and the Terms Agreement.

         In the event of a default by any Underwriters as set forth in this
Section, either the Representative or GTFFC shall have the right to postpone the
Closing Time for a period of time not exceeding seven days in order that any
required changes in the Registration Statement or Prospectus or in any other
documents or arrangements may be effected.

         SECTION 11. Notices. 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 the
Underwriters shall be directed to you at the respective addresses set forth on
the first page hereof, attention of the Syndicate Department. Notices to GTFFC
shall be directed to Green Tree Floorplan Funding Corp., 500 Landmark Towers,
345 St. Peter Street, Saint Paul, Minnesota, 55102-1639, Attention of the
Secretary, with a copy to the Treasurer. Notices to Green Tree shall be directed
to Green Tree Financial Corporation, 1100 Landmark Towers, 345 St. Peter Street,
Saint Paul, Minnesota 55102-1639, attention of the Secretary, with a copy to the
Treasurer.

         SECTION 12. Parties. This Agreement and the Terms Agreement shall inure
to the benefit of and be binding upon you, GTFFC, Green Tree and each
Underwriter who becomes a party to this Agreement and the Terms Agreement, and
their respective successors. Nothing expressed or mentioned in this Agreement or
the Terms Agreement is intended or shall be construed to give any person, firm
or corporation, other than the parties hereto or thereto and their respective
successors and the controlling persons and officers and directors referred to in
Sections 6 and 7, and their heirs and legal representatives any legal or
equitable right, remedy or claim under or with respect to this




                                       24
<PAGE>
 
Agreement or the Terms Agreement or any provision herein or therein contained.
This Agreement and the Terms Agreement and all conditions and provisions hereof
or thereof are intended to be for the sole and exclusive benefit of the parties
and their respective successors and said controlling persons and officers and
directors and their heirs and legal representatives (to the extent of their
rights as specified herein and therein) and for the benefit of no other person,
firm or corporation. No purchaser of Offered Certificates from any Underwriter
shall be deemed to be a successor by reason merely of such purchase.

         SECTION 13.  Governing Law and Time.  This Agreement and the
Terms Agreement shall be governed by the laws of the State of New
York.  Specified times of day refer to New York City time.

         SECTION 14. Counterparts. This Agreement and the Terms Agreement may be
executed in counterparts, each of which shall constitute an original of any
party whose signature appears on it, and all of which shall together constitute
a single instrument.

         SECTION 15. Representations and Warranties of the Underwriters. Each of
the Underwriters represents and warrants as of the date hereof, as of the
Representation Date and as of the Closing Time as follows:

                  (a) Such Underwriter has not offered or sold and, prior to the
         expiry of the period of six months from the Closing Date, such
         Underwriter will not offer or sell any Class A or Class B Certificates
         to persons in the United Kingdom, except to persons whose ordinary
         activities involve them in acquiring, holding, managing or disposing of
         investments (as principal or agent) for the purposes of their
         businesses or otherwise in circumstances which have not resulted and
         will not result in an offer to the public in the United Kingdom within
         the meaning of the Public Offers of Securities Regulation 1998;

                  (b) Such Underwriter has complied and will comply with all
         applicable provisions of the Financial Services Act 1986 with respect
         to anything done by it in relation to the Class A or Class B
         Certificates in, from or otherwise involving the United Kingdom; and

                  (c) Such Underwriter has only issued or passed on and will
         only issue or pass on in the United Kingdom any document received by it
         in connection with the issue of the Class A or Class B Certificates to
         a person who is of a kind described in Article 11(3) of the Financial
         Services Act 1986 (Investment Advertisements) (Exemptions) Order 1995,
         or




                                       25
<PAGE>
 
         is a person to whom such document may otherwise lawfully be
         issued or passed on.





                                       26
<PAGE>
 
         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to us a counterpart hereof, whereupon this
instrument along with all counterparts will become a binding agreement between
you, GTFFC and Green Tree in accordance with its terms.

                                    Very truly yours,

                                    GREEN TREE FLOORPLAN FUNDING CORP.


                                    By /s/ Phyllis A. Knight        
                                      --------------------------------
                                      Name: Phyllis A. Knight
                                      Title: Senior Vice President and Treasurer

                                    GREEN TREE FINANCIAL CORPORATION


                                    By /s/ Phyllis A. Knight
                                      --------------------------------
                                      Name: Phyllis A. Knight
                                      Title: Senior Vice President and Treasurer




CONFIRMED AND ACCEPTED, as of the date first above written:

J.P. MORGAN SECURITIES INC.


By /s/ Robert W. Flanigan
  ------------------------------
  Name: Robert W. Flanigan
  Title: Vice President



Merrill Lynch & Co.
Merrill Lynch, Pierce, Fenner & Smith
  Incorporated


By /s/ Andrew Peisch
  ------------------------------
  Name: Andrew Peisch
  Title: Director







                                       27
<PAGE>
 
                                                                       EXHIBIT A

                                  $440,000,000
            (Floating Rate) Floorplan Receivable Trust Certificates,
                             Series 1998-2, Class A

                                       and

                                   $22,500,000
            (Floating Rate) Floorplan Receivable Trust Certificates,
                             Series 1998-2, Class B


                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST

                             FORM OF TERMS AGREEMENT


                                                          Dated: August 20, 1998


To:  Green Tree Financial Corporation, ("GreenTree"),
     Green Tree Floorplan Funding Corp. ("GTFFC")

Re:  Underwriting Agreement dated August 20, 1998

Terms of the Certificates:

               Original
               Principal                   Certificate
                Amount                        Rate
                ------                        ----

Class A        $440,000,000            the lesser of (i) one-
                                       month LIBOR determined as
                                       of the second LIBOR
                                       business day prior to the
                                       relevant Interest Accrual
                                       Period plus 0.055% per
                                       annum or (ii) the Net
                                       Receivables Rate

Class B        $ 22,500,000            the lesser of (i) one-
                                       month LIBOR determined as
                                       of the second LIBOR
                                       business day prior to the
                                       relevant Interest Accrual
                                       Period plus 0.225% per
                                       annum or (ii) the Net
                                       Receivables Rate

                                        1
<PAGE>
 
Servicer:
- ---------

         Green Tree Financial Corporation (in such capacity, the
"Servicer")

Purchase Price:
- ---------------

         The purchase price payable by the Underwriters for the Class A
Certificates is 99.651563% of the principal amount of the Class A Certificates
plus accrued interest, if any, at the Class A Certificate Rate from September
14, 1998. J.P. Morgan Securities Inc. shall purchase $220,000,000 principal
amount of the Class A Certificates and Merrill Lynch, Pierce, Fenner & Smith
Incorporated shall purchase $220,000,000 principal amount of the Class A
Certificates.

         The purchase price payable by J.P. Morgan for the Class B Certificates
is 99.547656% of the principal amount of the Class B Certificates plus accrued
interest, if any, at the Class B Certificate Rate from September 14, 1998. J.P.
Morgan shall purchase $11,250,000 principal amount of the Class B Certificates
and Merrill Lynch, Pierce, Fenner & Smith Incorporated shall purchase
$11,250,000 principal amount of the Class B Certificates.

Underwriting Commission:
- ------------------------

         Notwithstanding anything to the contrary in the Underwriting Agreement,
no additional underwriting commission shall be payable by GTFFC to the
Underwriters in connection with the purchase of the Offered Certificates.

         Public Offering price (exclusive of any accrued interest) at which the
Underwriters will initially sell the Offered Certificates:

                     Class A            99.851563%
                     Class B            99.847656%

Closing Date and Location:
- --------------------------

         On or about September 14, 1998, offices of Dorsey & Whitney LLP, 220
South Sixth Street, Minneapolis, Minnesota 55402.

                                        2
<PAGE>
 
         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to us a counterpart hereof, whereupon this
instrument along with all counterparts will become a binding agreement between
you, GTFFC and Green Tree in accordance with its terms.

                                     J.P. MORGAN SECURITIES INC.


                                     By /s/ Robert W. Flanigan
                                       --------------------------------
                                       Name: Robert W. Flanigan
                                       Title: Vice President



                                     MERRILL LYNCH & CO.
                                     MERRILL LYNCH, PIERCE, FENNER & SMITH
                                             INCORPORATED


                                     By /s/ Andrew Peisch
                                       --------------------------------
                                       Name: Andrew Peisch
                                       Title: Director



ACCEPTED:

GREEN TREE FINANCIAL CORPORATION

By: /s/ Phyllis A. Knight
   -------------------------------
   Name: Phyllis A. Knight
   Title: Senior Vice President and Treasurer

GREEN TREE FLOORPLAN FUNDING CORP.

By: /s/ Phyllis A. Knight
   -------------------------------
   Name: Phyllis A. Knight
   Title: Senior Vice President and Treasurer


                                        3

<PAGE>
 
                                                                     Exhibit 4.2

                       GREEN TREE FLOORPLAN FUNDING CORP.

                                   Transferor

                        GREEN TREE FINANCIAL CORPORATION

                                    Servicer

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                     Trustee

                on behalf of the Series 1998-2 Certificateholders

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

                            SERIES 1998-2 SUPPLEMENT

                           Dated as of August 1, 1998

                                       to

                         POOLING AND SERVICING AGREEMENT

                          Dated as of December 1, 1995

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

                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST

              $440,000,000 Floating Rate Floorplan Receivable Trust
                      Certificates, Series 1998-2, Class A

              $22,500,000 Floating Rate Floorplan Receivable Trust
                      Certificates, Series 1998-2, Class B

              $21,250,000 Floating Rate Floorplan Receivable Trust
                      Certificates, Series 1998-2, Class C

              $16,250,000 Floating Rate Floorplan Receivable Trust
                      Certificates, Series 1998-2, Class D
<PAGE>
 
                                TABLE OF CONTENTS


                                                                          Page
                                                                          ----

SECTION 1. Designation.................................................     1

SECTION 2. Definitions.................................................     1

SECTION 3. Optional Repurchase.........................................    19

SECTION 4. Delivery and Payment for the Series 1998-2 Certificates.....    19

SECTION 5. Form of Delivery of Series 1998-2 Certificates..............    20

SECTION 6. Article IV of Agreement.....................................    20

                                   ARTICLE IV

                        Rights of Certificateholders and
                        --------------------------------
                    Allocation and Application of Collections
                    -----------------------------------------

         Section 4.4   Rights of Certificateholders....................... 20
         Section 4.5   Collections and Allocation; Payments on
                       Exchangeable Transferor Certificate................ 21
         Section 4.6   Determination of Monthly Interest for the Series
                       1998-2 Certificates................................ 22
         Section 4.7   Determination of Principal Amounts................. 24
         Section 4.8   Shared Principal Collections....................... 26
         Section 4.9   Application of Funds on Deposit in the Collection
                       Account for the Certificates....................... 27
         Section 4.10  Coverage of Required Amount for the Series 1998-2
                       Certificates....................................... 34
         Section 4.11  Payment of Certificate Interest.................... 35
         Section 4.12  Payment of Certificate Principal................... 35
         Section 4.13  Investor Charge-Off................................ 36
         Section 4.14  Reallocated Principal Collections for the Series
                       1998-2 Certificates................................ 37
         Section 4.15  Determination of LIBOR............................. 38
         Section 4.16  Determination of Accumulation Period Length........ 39
         Section 4.17  Pre-Funding Account................................ 39
         Section 4.18  Increases in Invested Amount....................... 40

                                      - i -
                                                                          
<PAGE>
 
SECTION 7. Article V of the Agreement..................................    41

                                    ARTICLE V

            Distributions and Reports to Investor Certificateholders
            --------------------------------------------------------

         Section 5.1   Distributions...................................    41
         Section 5.2   Certificateholders' Statement...................    43

SECTION 8. Series 1998-2 Pay Out Events................................    45

SECTION 9. Series 1998-2 Termination...................................    45

SECTION 10.Legends; Transfer and Exchange; Restrictions on Transfer
           of Series 1998-2 Certificates; Tax Treatment................    46

SECTION 11.Additional Restrictions on Transfers of Class C Certificates;
           Withholding Requirements; Tax Treatment.....................    49

SECTION 12.Ratification of Agreement...................................    53

SECTION 13.Counterparts................................................    53

SECTION 14.Governing Law...............................................    53

SECTION 15.Instructions in Writing.....................................    53


EXHIBITS

EXHIBIT A  Form of Class A Investor Certificate

EXHIBIT B  Form of Class B Investor Certificate

EXHIBIT C  Form of Class C Investor Certificate

EXHIBIT D  Form of Class D Investor Certificate

EXHIBIT E  Form of Monthly Certificateholder's Statement

EXHIBIT F  Form of Representation Letter and Certification


                            - ii -
           
<PAGE>
 
         SERIES 1998-2 SUPPLEMENT, dated as of August 1, 1998 (the "Series
Supplement") by and among GREEN TREE FLOORPLAN FUNDING CORP., a corporation
organized and existing under the laws of the State of Delaware, as Transferor
(the "Transferor"), GREEN TREE FINANCIAL CORPORATION, a corporation organized
and existing under the laws of Delaware, as Servicer (the "Servicer"), and
NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION, a national banking association, as
trustee (together with its successors in trust thereunder as provided in the
Agreement referred to below, the "Trustee"), under the Pooling and Servicing
Agreement dated as of December 1, 1995 and amended by Amendment No. 1 thereto
dated as of March 11, 1998 (as amended and supplemented, the "Agreement") among
the Transferor, the Servicer and the Trustee.

         Section 6.9 of the Agreement provides, among other things, that the
Transferor and the Trustee may at any time and from time to time enter into a
supplement to the Agreement for the purpose of authorizing the issuance by the
Trustee to the Transferor, for execution and redelivery to the Trustee for
authentication, of one or more Series of Certificates.

         Pursuant to this Series Supplement, the Transferor and the Trustee
shall create a new Series of Investor Certificates and shall specify the
Principal Terms thereof.

         SECTION 1. Designation. There is hereby created a Series of Investor
Certificates to be issued pursuant to the Agreement and this Series Supplement
to be known generally as the "Series 1998-2 Certificates." The Series 1998-2
Certificates shall be issued in four Classes, which shall be designated
generally as the Floating Rate Floorplan Receivable Trust Certificates, Series
1998-2, Class A (the "Class A Certificates"), the Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class B (the "Class B
Certificates"), the Floating Rate Floorplan Receivable Trust Certificates,
Series 1998-2, Class C (the "Class C Certificates") and the Floating Rate
Floorplan Receivable Trust Certificates, Series 1998-2, Class D (the "Class D
Certificates"). The Series 1998-2 Certificates shall be paired with the Series
1995-1 Certificates, in the manner and to the extent provided herein.

         SECTION 2. Definitions. In the event that any term or provision
contained herein shall conflict with or be inconsistent with any provision
contained in the Agreement, the terms and provisions of this Series Supplement
shall govern with respect to the Series 1998-2 Certificates. All Article,
Section or subsection references herein shall mean Article, Section or
subsections of the Agreement, as amended or supplemented by this Series
Supplement, except as otherwise provided herein. All capitalized terms not
otherwise defined herein are defined in the Agreement. Each capitalized term
defined herein shall relate only to the Series 1998-2 Certificates and no other
Series of Certificates issued by the Trust.

         "ABC Fixed/Floating Allocation Percentage" means, (i) for any Business
Day on which the Pre-Allocated Invested Amount is greater than zero, zero, and
(ii) for any

<PAGE>
 
Business Day on which the Pre-Allocated Invested Amount is zero, the percentage
equivalent of a fraction, the numerator of which is the sum of the Class A
Invested Amount, the Class B Invested Amount and the Class C Invested Amount at
the end of the last day of the Revolving Period and the denominator of which is
the greater of (a) the sum of the aggregate amount of the Pool Balance and the
amount on deposit in the Excess Funding Account at the end of the preceding
Business Day and (b) the sum of the numerators used to calculate the allocation
percentages with respect to Principal Collections for all Series.

         "ABC Investor Default Amount" means, for any Business Day, an amount
equal to the product of (a) the sum of the Class A Floating Allocation
Percentage, the Class B Floating Allocation Percentage and the Class C Floating
Allocation Percentage applicable on such Business Day and (b) the aggregate
principal amount (exclusive of the portion thereof allocable to the Discount
Factor, if any) of Defaulted Receivables identified since the prior reporting
date.

         "Accumulation Period Commencement Date" means the first day of the
December 2001 Monthly Period if the Accumulation Period Length is four months,
the first day of the January 2002 Monthly Period if the Accumulation Period
Length is three months, the first day of the February 2002 Monthly Period if the
Accumulation Period Length is two months, and the first day of the March 2002
Monthly Period if the Accumulation Period Length is one month; provided,
however, if the Accumulation Period Length has been determined to be less than
four months and, after such determination, any outstanding Series enters into an
early amortization period, the Accumulation Period Commencement Date shall be
the earlier of (x) the date on which such other outstanding Series entered its
early amortization period and (y) the Accumulation Period Commencement Date as
previously determined.

         "Accumulation Period Length" means the one, two, three or four month(s)
period determined on November 13, 2001, and shall be calculated as the product,
rounded upwards to the nearest integer, of (a) four and (b) a fraction, the
numerator of which is the Invested Amount as of November 13, 2001 (after giving
effect to all changes therein on such date) and the denominator of which is the
sum of such Invested Amount and the invested amounts as of November 13, 2001
(after giving effect to all changes therein on such date) of all other
outstanding Series whose respective revolving periods are not scheduled to end
before the last day of the March 2002 Monthly Period.

         "Accumulation Shortfall" means, for the succeeding Monthly Period, the
amount by which the Controlled Deposit Amount exceeds the amount deposited in
the Principal Account for any Monthly Period.

         "Additional Class D Invested Amount" means any increase in the Class D
Invested Amount agreed to in connection with an increase by the Transferor in
any of the percentages used to calculate the Overconcentration Amounts.


                                      - 2 -
<PAGE>
 
         "Additional Interest" means, at any time of determination, the sum of
Class A Additional Interest, Class B Additional Interest, Class C Additional
Interest and Class D Additional Interest.

         "Base Rate" means the sum of (i) the weighted average of the Class A
Certificate Rate, the Class B Certificate Rate, the Class C Certificate Rate and
the Class D Certificate Rate, plus (ii) 2% per annum.

         "Carryover Class A Interest" means (a) any Class A Monthly Interest due
but not paid on any previous Distribution Date plus (b) any Class A Additional
Interest.

         "Carryover Class B Interest" means (a) any Class B Monthly Interest due
but not paid on any previous Distribution Date plus (b) any Class B Additional
Interest.

         "Carryover Class C Interest" means (a) any Class C Monthly Interest due
but not paid on any previous Distribution Date plus (b) any Class C Additional
Interest.

         "Carryover Class D Interest" means (a) any Class D Monthly Interest due
but not paid on any previous Distribution Date plus (b) any Class D Additional
Interest.

         "Cash Equivalents" mean, unless otherwise provided in this Series
Supplement, (a) negotiable instruments or securities represented by instruments
in bearer or registered form which evidence (i) obligations of or fully
guaranteed by the United States of America; (ii) time deposits, promissory
notes, or certificates of deposit of any depositary institution or trust
company; provided, however, that at the time of the Trust's investment or
contractual commitment to invest therein, the certificates of deposit or
short-term deposits of such depositary institution or trust company shall have a
credit rating from Standard & Poor's of A-1+, from Moody's of P-1 and from Fitch
of F-1+ if rated by Fitch; (iii) commercial paper having, at the time of the
Trust's investment or contractual commitment to invest therein, a rating from
Standard & Poor's of A-1+, from Moody's of P-1 and from Fitch of F-1+ if rated
by Fitch; (iv) banker's acceptances issued by any depositary institution or
trust company described in clause (a)(ii) above; and (v) investments in money
market funds rated AAA-m or AAA-mg by Standard & Poor's, Aaa by Moody's and AAA
by Fitch if rated by Fitch or otherwise approved in writing by Moody's, Standard
& Poor's and Fitch; (b) time deposits and demand deposits in the name of the
Trust or the Trustee in any depositary institution or trust company referred to
in clause (a)(ii) above; (c) securities not represented by an instrument that
are registered in the name of the Trustee or its nominee (which may not be Green
Tree or an Affiliate) upon books maintained for that purpose by or on behalf of
the issuer thereof and identified on books maintained for that purpose by the
Trustee as held for the benefit of the Trust or the Certificateholders, and
consisting of (x) shares of an open end diversified investment company which is
registered under the Investment Company Act which (i) invests its assets
exclusively in obligations of or guaranteed by the United States of America or
any instrumentality or agency thereof having in each instance a final maturity
date of less than one year from

                                      - 3 -
<PAGE>
 
their date of purchase or other Cash Equivalents, (ii) guarantees to maintain a
constant net asset value per share, (iii) has aggregate net assets of not less
than $100,000,000 on the date of purchase of such shares and (iv) which each
Rating Agency designates in writing will not result in a withdrawal or
downgrading of its then current rating of any Series rated by it or (y)
Eurodollar time deposits of a depository institution or trust company that are
rated A-1+ by Standard & Poor's, P-1 by Moody's and F-1+ by Fitch if rated by
Fitch; provided, however, that at the time of the Trust's investment or
contractual commitment to invest therein, the Eurodollar deposits of such
depositary institution or trust company shall have a credit rating from Standard
& Poor's of A-1+, from Moody's of P-1 and from Fitch of F-1+ if rated by Fitch;
and (d) any other investment if each Rating Agency confirms in writing that such
investment will not adversely affect its then current rating of the Investor
Certificates.

         "Class A Additional Interest" shall have the meaning specified in
subsection 4.6(a).

         "Class A Certificate Rate" means, with respect to any Interest Accrual
Period, the lesser of (i) the applicable LIBOR plus .055% per annum or (ii) the
applicable Net Receivables Rate.

         "Class A Certificateholder" means the Person in whose name a Class A
Certificate is registered in the Certificate Register.

         "Class A Certificateholders' Interest" means the portion of the Series
1998-2 Certificateholder's Interest evidenced by the Class A Certificates.

         "Class A Certificates" means any of the certificates executed by the
Transferor and authenticated by or on behalf of the Trustee, substantially in
the form of Exhibit A hereto.

         "Class A Fixed/Floating Allocation Percentage" means, (i) with respect
to any Business Day on which the Pre-Allocated Invested Amount is greater than
zero, zero, and (ii) for any Business Day on which the Pre-Allocated Invested
Amount is zero, the percentage equivalent of a fraction, the numerator of which
is the Class A Invested Amount at the end of the last day of the Revolving
Period and the denominator of which is the greater of (a) the sum of the Pool
Balance and the amount on deposit in the Excess Funding Account at the end of
the preceding Business Day and (b) the sum of the numerators used to calculate
the allocation percentages with respect to Principal Collections for all Series.

         "Class A Floating Allocation Percentage" means, with respect to any
Business Day, the percentage equivalent of a fraction, the numerator of which is
the Class A Invested Amount as of the end of the preceding Business Day and the
denominator of which is the greater of (a) the sum of the Pool Balance and the
amount on deposit in the Excess Funding Account as of the end of the preceding
Business Day and (b) the sum of

                                      - 4 -
<PAGE>
 
the numerators used to calculate the allocation percentages with respect to
Principal Collections for all Series.

         "Class A Initial Invested Amount" means the aggregate initial principal
amount of the Class A Certificates, which is $440,000,000.

         "Class A Interest Shortfall" shall have the meaning specified in
subsection 4.6(a).

         "Class A Invested Amount" means an amount equal to (a) the initial
principal balance of the Class A Certificates less the Class A Percentage of the
initial deposit to the Pre-Funding Account plus the Class A Percentage of any
withdrawals from the Pre-Funding Account pursuant to Section 4.18 (i) during the
Funding Period, in connection with the addition of Receivables to the Trust or
payment of principal to the Series 1995- 1 Certificates or (ii) at the end of
the Funding Period, for deposit into the Excess Funding Account, minus (b) the
aggregate amount of principal payments (except principal payments made from the
Pre-Funding Account) made to Class A Certificateholders prior to such date,
minus (c) the aggregate amount of Class A Investor Charge-Offs for all prior
Determination Dates, and plus (d) the aggregate amount allocated and available
on all prior Business Days pursuant to subsection 4.9(a)(vi) (including amounts
applied pursuant to such subsection but funded pursuant to Section 4.10(a) and
(b) and Section 4.14(a), (b) and (c)) for the purpose of reimbursing amounts
deducted pursuant to the foregoing clause (c).

         "Class A Investor Charge-Off" shall have the meaning specified in
subsection 4.13(d).

         "Class A Monthly Interest" means the interest distributable in respect
of the Class A Certificates as calculated in accordance with subsection 4.6(a).

         "Class A Percentage" means the percentage derived from the fraction,
the numerator of which is the Class A Initial Invested Amount and the
denominator of which is the sum of the Class A Initial Invested Amount, the
Class B Initial Invested Amount and the Class C Initial Invested Amount.

         "Class A Pre-Funded Amount" means the product of the Pre-Funded Amount
and the Class A Percentage.

         "Class A Principal" means the principal distributable in respect of the
Class A Certificates as calculated in accordance with subsection 4.7(a).

         "Class A Required Amount" means the amount determined by the Servicer
on each Business Day in a Monthly Period equal to the excess, if any, of (x) the
sum of (i) Class A Monthly Interest for the prior Monthly Period, (ii) any Class
A Monthly Interest due but not paid on any previous Distribution Date plus any
Class A Additional Interest previously due but not paid to the Class A
Certificateholders on a

                                      - 5 -
<PAGE>
 
prior Distribution Date, (iii) if Green Tree or an Affiliate of Green Tree is no
longer the Servicer, the Class A Floating Allocation Percentage of the Servicing
Fee for the prior Monthly Period and (iv) the Class A Floating Allocation
Percentage of the Investor Default Amount, to the extent not previously paid,
for any Business Day in the prior Monthly Period over (y) the Series Available
Interest Collections plus any Excess Interest Collections from other Series
allocated with respect to the amounts described in clauses (x)(i) through (iv).

         "Class A Scheduled Payment Date" means the Distribution Date in April
2002.

         "Class B Additional Interest" shall have the meaning specified in
subsection 4.6(b).

         "Class B Certificate Rate" means, with respect to any Interest Accrual
Period, the lesser of (i) the applicable LIBOR plus .225% per annum or (ii) the
applicable Net Receivables Rate.

         "Class B Certificateholder" means the Person in whose name a Class B
Certificate is registered in the Certificate Register.

         "Class B Certificateholders' Interest" means the portion of the Series
1998-2 Certificateholders' Interest evidenced by the Class B Certificates.

         "Class B Certificates" means any of the certificates executed by the
Transferor and authenticated by or on behalf of the Trustee, substantially in
the form of Exhibit B hereto.

         "Class B Daily Principal Amount" shall have the meaning specified in
subsection 4.9(c)(ii).

         "Class B Fixed/Floating Allocation Percentage" means, (i) with respect
to any Business Day on which the Pre-Allocated Invested Amount is greater than
zero, zero, and (ii) for any Business Day on which the Pre-Allocated Invested
Amount is zero, the percentage equivalent of a fraction, the numerator of which
is the Class B Invested Amount at the end of the last day of the Revolving
Period and the denominator of which is the greater of (a) the sum of the Pool
Balance and the amount on deposit in the Excess Funding Account at the end of
the preceding Business Day and (b) the sum of the numerators used to calculate
the allocation percentages with respect to Principal Collections for all Series.

         "Class B Floating Allocation Percentage" means, with respect to any
Business Day, the percentage equivalent of a fraction, the numerator of which is
the Class B Invested Amount as of the end of the preceding Business Day and the
denominator of which is the greater of (a) the sum of the Pool Balance and the
amount on deposit in the Excess Funding Account as of the end of the preceding
Business Day and (b) the sum of

                                      - 6 -
<PAGE>
 
the numerators used to calculate the allocation percentages with respect to
Principal Collections for all Series.

         "Class B Initial Invested Amount" means the aggregate initial principal
amount of the Class B Certificates, which is $22,500,000.

         "Class B Interest Shortfall" shall have the meaning specified in
subsection 4.6(b).

         "Class B Invested Amount" for any date means an amount equal to (a) the
initial principal balance of the Class B Certificates less the Class B
Percentage of the initial deposit to the Pre-Funding Account plus the Class B
Percentage of any withdrawals from the Pre-Funding Account pursuant to Section
4.18 (i) during the Funding Period, in connection with the addition of
Receivables to the Trust or payment of principal to the Series 1995-1
Certificates or (ii) at the end of the Funding Period, for deposit into the
Excess Funding Account minus (b) the aggregate amount of principal payments
(except principal payments made from the Pre-Funding Account) made to Class B
Certificateholders prior to such date, minus (c) the aggregate amount of the
Class B Investor Charge-Offs for all prior Determination Dates equal to the
amount by which the Class B Invested Amount has been reduced to fund the
Investor Default Amounts on all prior Determination Dates pursuant to Section
4.13(c), minus (d) the aggregate amount of Reallocated Class B Principal
Collections for which neither the Class D Invested Amount nor the Class C
Invested Amount has been reduced for all prior Distribution Dates, and plus (e)
the aggregate amount allocated and available on all prior Business Days pursuant
to subsection 4.9(a)(viii) (including amounts applied pursuant to such
subsection but funded pursuant to Section 4.10(a) and (b) and Section 4.14(a)
and (b)) for the purpose of reimbursing amounts deducted pursuant to the
foregoing clauses (c) and (d).

         "Class B Investor Charge-Off" shall have the meaning specified in
subsection 4.13(c).

         "Class B Monthly Interest" means the interest distributable in respect
of the Class B Certificates as calculated in accordance with subsection 4.6(b).

         "Class B Percentage" means the percentage derived from the fraction the
numerator of which is the Class B Initial Invested Amount and the denominator of
which is the sum of the Class A Initial Invested Amount, the Class B Initial
Invested Amount and the Class C Initial Invested Amount.

         "Class B Pre-Funded Amount" means the product of the Pre-Funded Amount
and the Class B Percentage.

         "Class B Principal" means the principal distributable in respect of the
Class B Certificates as calculated in accordance with subsection 4.7(b).


                                      - 7 -
<PAGE>
 
         "Class B Principal Commencement Date" means the earliest of (a) the
Class B Scheduled Payment Date, (b) the Distribution Date during the Early
Amortization Period on which the Class A Invested Amount is paid in full or, if
there are no Principal Collections allocable to the Series 1998-2 Investor
Certificates remaining after payments have been made to the Class A Certificates
on such Distribution Date, the Distribution Date following the Distribution Date
on which the Class A Invested Amount is paid in full and (c) the Distribution
Date following a sale or repurchase of the Receivables as set forth in Sections
2.4(d), 9.2, 10.2, 12.1 or 12.2 of the Agreement and Section 3 of this Series
Supplement.

         "Class B Required Amount" means the amount determined by the Servicer
on each Business Day in a Monthly Period equal to the excess, if any, of (x) the
sum of (i) Class B Monthly Interest for the prior Monthly Period, (ii) any Class
B Monthly Interest due but not paid on any previous Distribution Date plus any
Class B Additional Interest previously due but not paid to the Class B
Certificateholders on a prior Distribution Date, (iii) if Green Tree or an
Affiliate of Green Tree is no longer the Servicer, the Class B Floating
Allocation Percentage of the Servicing Fee for the prior Monthly Period and (iv)
the Class B Floating Allocation Percentage of the Investor Default Amount, to
the extent not previously paid, for any Business Day in the prior Monthly Period
over (y) the Series Available Interest Collections plus any Excess Interest
Collections from other Series allocated with respect to the amounts described in
clauses (x)(i) through (iv).

         "Class B Scheduled Payment Date" means the Distribution Date in May
2002.

         "Class C Additional Interest" shall have the meaning specified in
subsection 4.6(c).

         "Class C Certificate Rate" means, with respect to any Interest Accrual
Period, the lesser of (i) the applicable LIBOR plus .70% per annum or (ii) the
applicable Net Receivables Rate.

         "Class C Certificateholder" means the Person in whose name a Class C
Certificate is registered in the Certificate Register.

         "Class C Certificateholders' Interest" means the portion of the Series
1998-2 Certificateholders' Interest evidenced by the Class C Certificates.

         "Class C Certificates" means any of the certificates executed by the
Transferor and authenticated by or on behalf of the Trustee, substantially in
the form of Exhibit C hereto.

         "Class C Daily Principal Amount" shall have the meaning specified in
subsection 4.9(c)(iii).


                                      - 8 -
<PAGE>
 
         "Class C Fixed/Floating Allocation Percentage" means, (i) with respect
to any Business Day on which the Pre-Allocated Invested Amount is greater than
zero, zero, and (ii) for any Business Day on which the Pre-Allocated Invested
Amount is zero, the percentage equivalent of a fraction, the numerator of which
is the Class C Invested Amount at the end of the last day of the Revolving
Period and the denominator of which is the greater of (a) the sum of the Pool
Balance and the amount on deposit in the Excess Funding Account at the end of
the preceding Business Day and (b) the sum of the numerators used to calculate
the allocation percentages with respect to Principal Collections for all Series.

         "Class C Floating Allocation Percentage" means, with respect to any
Business Day, the percentage equivalent of a fraction, the numerator of which is
the Class C Invested Amount as of the end of the preceding Business Day and the
denominator of which is the greater of (a) the sum of the Pool Balance and the
amount on deposit in the Excess Funding Account as of the end of the preceding
Business Day and (b) the sum of the numerators used to calculate the allocation
percentages with respect to Principal Collections for all Series.

         "Class C Initial Invested Amount" means the aggregate initial principal
amount of the Class C Certificates, which is $21,250,000.

         "Class C Interest Shortfall" shall have the meaning specified in
subsection 4.6(c).

         "Class C Invested Amount" for any date means an amount equal to (a) the
initial principal balance of the Class C Certificates less the Class C
Percentage of the initial deposit to the Pre-Funding Account plus the Class C
Percentage of any withdrawals from the Pre-Funding Account pursuant to Section
4.18 (i) during the Funding Period, in connection with the addition of
Receivables to the Trust or payment of principal on the Series 1995-1
Certificates or (ii) at the end of the Funding Period, for deposit into the
Excess Funding Account, minus (b) the aggregate amount of principal payments
(except principal payments made from the Pre-Funding Account) made to Class C
Certificateholders prior to such date, minus (c) the aggregate amount of the
Class C Investor Charge-Offs for all prior Distribution Dates equal to the
amount by which the Class C Invested Amount has been reduced to fund the
Investor Default Amounts on all prior Distribution Dates pursuant to Section
4.13(b), minus (d) the aggregate amount of Reallocated Class C Principal
Collections for which the Class D Invested Amount has not been reduced for all
prior Distribution Dates (provided that the Class C Invested Amount may not be
reduced below zero), and plus (e) the aggregate amount allocated and available
on all prior Business Days pursuant to subsection 4.9(a)(ix) (including amounts
applied pursuant to such subsection but funded pursuant to Section 4.10(a) and
(b) and Section 4.14(a) for the purpose of reimbursing amounts deducted pursuant
to the foregoing clauses (c) and (d).

         "Class C Investor Charge-Off" shall have the meaning specified in
subsection 4.13(b).

                                      - 9 -
<PAGE>
 
         "Class C Monthly Interest" means the interest distributable in respect
of the Class C Certificates as calculated in accordance with subsection 4.6(c).

         "Class C Percentage" means the percentage derived from the fraction the
numerator of which is the Class C Invested Initial Amount and the denominator of
which is the sum of the Class A Initial Invested Amount, the Class B Initial
Invested Amount and the Class C Initial Invested Amount.

         "Class C Pre-Funded Amount" means the product of the Pre-Funded Amount
and the Class C Percentage.

         "Class C Principal" means the principal distributable in respect of the
Class C Certificates as calculated in accordance with Section 4.7(c).

         "Class C Principal Commencement Date" means the earlier of (a) the
Distribution Date on which the Class B Invested Amount is paid in full or, if
there are no Principal Collections allocable to the Series 1998-2 Investor
Certificates remaining after payments have been made to the Class B Certificates
on such Distribution Date, the Distribution Date following the Distribution Date
on which the Class B Invested Amount is paid in full and (b) the Distribution
Date following a sale or repurchase of the Receivables as set forth in the
Pooling and Servicing Agreement and the 1998-2 Series Supplement.

         "Class C Required Amount" means the amount determined by the Servicer
on each Business Day in a Monthly Period equal to the excess, if any, of (x) the
sum of (i) if the Class A Certificates and Class B Certificates have been
reduced to zero, interest accrued on the Class C Certificates for the prior
Monthly Period, (ii) if the Class A Certificates and Class B Certificates have
been reduced to zero, any interest due on the Class C Certificates but not paid
on any previous Distribution Date plus any Class C Additional Interest
previously due but not paid to the Class C Certificateholders on a prior
Distribution Date, (iii) if Green Tree or an Affiliate of Green Tree is no
longer the Servicer, the Class C Floating Allocation Percentage of the Servicing
Fee for the prior Monthly Period and (iv) the Class C Floating Allocation
Percentage of the Investor Default Amount, to the extent not previously paid,
for any Business Day in the prior Monthly Period over (y) the Series Available
Interest Collections plus any Excess Interest Collections from other Series
allocated with respect to the amounts described in clauses (x)(i) through (iv).

         "Class D Additional Interest" shall have the meaning specified in
subsection 4.6(d).

         "Class D Certificate Rate" means, with respect to any Interest Accrual
Period, the lesser of (i) the applicable LIBOR plus .70% per annum or (ii) the
applicable Net Receivables Rate.


                                     - 10 -
<PAGE>
 
         "Class D Certificateholder" means the person in whose name a Class D
Certificate is registered in the Certificate Register.

         "Class D Certificateholders' Interest" means the portion of the Series
1998-2 Certificateholders' Interest evidenced by the Class D Certificates.

         "Class D Certificates" means any of the certificates executed by the
Transferor and authenticated by or on behalf of the Trustee, substantially in
the form of Exhibit D hereto.

         "Class D Fixed/Floating Allocation Percentage" means, (i) with respect
to any Business Day on which the Pre-Allocated Invested Amount is greater than
zero, zero, and (ii) for any Business Day on which the Pre-Allocated Invested
Amount is zero, the percentage equivalent of a fraction, the numerator of which
is the Class D Invested Amount at the end of the last day of the Revolving
Period and the denominator of which is the greater of (a) the sum of the Pool
Balance and the amount on deposit in the Excess Funding Account as of the end of
the preceding Business Day and (b) the sum of the numerators used to calculate
the allocation percentages with respect to Principal Collections for all Series.

         "Class D Floating Allocation Percentage" means, with respect to any
Business Day, the percentage equivalent of a fraction, the numerator of which is
the Class D Invested Amount as of the end of the preceding Business Day and the
denominator of which is the greater of (a) the sum of the Pool Balance and the
amount on deposit in the Excess Funding Account at the end of the preceding
Business Day and (b) the sum of the numerators used to calculate the allocation
percentages with respect to Principal Collections for all Series.

         "Class D Incremental Invested Amount" means, for any Monthly Period,
the product of (a) a fraction, the numerator of which the Invested Amount
(exclusive of the Class D Incremental Invested Amount) on the last day of the
immediately preceding Monthly Period and the denominator of which is the Pool
Balance on such last day, times (b) the Overconcentration Amount for the
Distribution Date related to such Monthly Period.

         "Class D Initial Invested Amount" means the aggregate initial principal
amount of the Class D Certificates (exclusive of the Class D Incremental
Invested Amount), which is $16,250,000.

         "Class D Invested Amount" means an amount equal to (a) the Class D
Initial Invested Amount, plus (b) the Class D Incremental Invested Amount for
the related Monthly Period, plus (c) any Additional Class D Invested Amount,
minus (d) the aggregate amount of principal payments made to Class D
Certificateholders prior to such date, minus (e) the aggregate amount of Class D
Investor Charge-Offs for all prior Distribution Dates equal to the amount by
which the Class D Invested Amount has been

                                     - 11 -
<PAGE>
 
reduced to fund Investor Default Amounts on all prior Distribution Dates
pursuant to Section 4.13(a), minus (f) the aggregate amount of Reallocated Class
D Principal Collections for all prior Distribution Dates, plus (g) the aggregate
amount allocated and available on all prior Business Days pursuant to subsection
4.9(a)(x) (including amounts applied pursuant to such subsection but funded
pursuant to Section 4.10(a) and (b)) for the purpose of reimbursing amounts
deducted pursuant to the foregoing clauses (e) and plus (f).

         "Class D Investor Charge-Off" shall have the meaning specified in
subsection 4.13(a).

         "Class D Investor Default Amount" means the portion of all Defaulted
Receivables in an amount equal to the product of (a) the Class D Floating
Allocation Percentage and (b) the aggregate principal amount (exclusive of the
portion thereof allocable to the Discount Factor, if any) of Defaulted
Receivables identified since the prior reporting date.

         "Class D Principal" means the principal distributable in respect of the
Class D Certificates as calculated in accordance with subsection 4.7(d).

         "Class D Principal Payment Commencement Date" means the earlier of (a)
the Distribution Date on which the Class C Invested Amount is paid in full or,
if there are no Principal Collections allocable to the Series 1998-2 Investor
Certificates remaining after payments have been made to the Class C Certificates
on such Distribution Date, the Distribution Date following the Distribution Date
on which the Class C Invested Amount is paid in full and (b) the Distribution
Date following a sale or repurchase of the Receivables as set forth in Pooling
and Servicing Agreement and the 1998-2 Series Supplement.

         "Class D Subaccount" means a subaccount of the Excess Funding Account,
into which Principal Collections allocable to Class D Certificates will be
deposited during any Early Amortization Period.

         "Controlled Accumulation Amount" means the quotient derived from
dividing the Class A Invested Amount as of the Distribution Date in November
2001 (after giving effect to any changes therein on such date) by the
Accumulation Period Length.

         "Controlled Accumulation Period" means, with respect to the Series
1998-2 Certificates, unless a Pay Out Event shall have occurred with respect to
such Series prior thereto, the period commencing on the Accumulation Period
Commencement Date and ending upon the earliest to occur of (i) the commencement
of the Early Amortization Period, (ii) payment in full to the Investor
Certificateholders of the Invested Amount, and (iii) the Series 1998-2
Termination Date.


                                     - 12 -
<PAGE>
 
         "Controlled Deposit Amount" means, for any Monthly Period, the sum of
the (i) Controlled Accumulation Amount for such Monthly Period plus (ii) the
Accumulation Shortfall for the related Monthly Period.

         "Distribution Date" means the 13th day of each month, or if such day is
not a Business Day, the next succeeding Business Day, beginning October 13,
1998.

         "Early Amortization Period" means the period beginning on the earlier
of (a) the first day of the Monthly Period preceding the Initial Principal
Payment Date and (b) the date that a Pay Out Event occurs, and ending on the
earlier of (i) the date on which the Class A Invested Amount, the Class B
Invested Amount, the Class C Invested Amount and the Class D Invested Amount
have been paid in full and (ii) the Series 1998-2 Termination Date.

         "Enhancement" means, with respect to the Class A Certificates, the
subordination of the Class B Invested Amount, the Class C Invested Amount and
the Class D Invested Amount, with respect to the Class B Certificates, the
subordination of the Class C Invested Amount and the Class D Invested Amount,
and with respect to the Class C Certificates, the subordination of the Class D
Invested Amount.

         "Excess Interest Collections" means, with respect to any Business Day,
as the context requires, either (x) the amount described in subsection
4.9(a)(xiv) allocated to the Series 1998-2 Certificates but available to cover
shortfalls in amounts paid from Interest Collections for other Series, if any,
or (y) the aggregate amount of Interest Collections allocable to other Series in
excess of the amounts necessary to make required payments with respect to such
Series, if any, and available to cover shortfalls with respect to the Series
1998-2 Certificates.

         "Fixed/Floating Allocation Percentage" means, (i) for any Business Day
on which the Pre-Allocated Invested Amount is greater than zero, zero, and (ii)
for any Business Day on which the Pre-Allocated Invested Amount is zero, the
percentage equivalent of a fraction, the numerator of which is the Class A
Invested Amount, the Class B Invested Amount, the Class C Invested Amount or the
Class D Invested Amount, respectively, at the end of the last day of the
Revolving Period and the denominator of which is the greater of (a) the Pool
Balance (plus amounts, if any, on deposit in the Excess Funding Account) at the
end of the preceding Business Day and (b) the sum of the numerators used to
calculate allocation percentages with respect to Principal Collections for all
Series.

         "Floating Allocation Percentage" means for any Business Day, the sum of
the Class A Floating Allocation Percentage, the Class B Floating Allocation
Percentage, the Class C Floating Allocation Percentage and the Class D Floating
Allocation Percentage.

         "Full Invested Amount" shall mean $500,000,000.


                                     - 13 -
<PAGE>
 
         "Funding Period" shall mean the period from and including the Series
1998-2 Issuance Date to but excluding the earlier of (x) the first day for which
the Invested Amount equals the Full Invested Amount; (y) the first day on which
a Pay Out Event is deemed to occur and (z) the first day of the March 1999
Monthly Period.

         "Initial Invested Amount" means the aggregate initial principal amount
of the Investor Certificates of Series 1998-2 less the Initial Pre-Funded
Amount, or $500,000,000; provided, however, that for purposes of calculating the
Minimum Aggregate Principal Receivables, the Initial Invested Amount of Series
1998-2 shall be deemed to be zero until the Pre-Allocated Invested Amount equals
zero.

         "Initial Pre-Funded Amount" shall mean $0.

         "Initial Principal Payment Date" means initially the April 2001
Distribution Date, but will successively and automatically be extended to the
next Distribution Date after the then-current Initial Principal Payment Date
unless the Servicer elects not to so extend; provided, however, that the Initial
Principal Payment Date may not be later than the Class A Scheduled Payment Date.

         "Interest Accrual Period" means, with respect to a Distribution Date,
the period from and including the preceding Distribution Date (or, in the case
of the first Distribution Date, from and including the Series 1998-2 Issuance
Date) to but excluding such Distribution Date.

         "Invested Amount" means, when used with respect to any Business Day, an
amount equal to the sum of (a) the Class A Invested Amount as of such Business
Day, (b) the Class B Invested Amount as of such Business Day, (c) the Class C
Invested Amount as of such Business Day and (d) the Class D Invested Amount as
of such Business Day.

         "Investor Certificateholder" means the Holder of record of an Investor
Certificate of Series 1998-2.

         "Investor Certificates" means the Class A Certificates, the Class B
Certificates, the Class C Certificates and the Class D Certificates.

         "Investor Charge-Off" means the sum of the Class A Investor Charge-Off,
the Class B Investor Charge-Off, the Class C Investor Charge-Off and the Class D
Investor Charge-Off.

         "Investor Default Amount" means, with respect to each Business Day, an
amount equal to the product of the Floating Allocation Percentage applicable for
such Business Day and the principal amount (exclusive of the portion thereof
allocable to the Discount Factor, if any) of Defaulted Receivables identified
since the prior Business Day.


                                     - 14 -
<PAGE>
 
         "Investor Percentage" means for any Business Day, (a) with respect to
Interest Receivables and Defaulted Receivables at any time or Principal
Receivables during the Revolving Period, the Floating Allocation Percentage and
(b) with respect to Principal Receivables during the Controlled Accumulation
Period or Early Amortization Period, the Fixed/Floating Allocation Percentage.

         "LIBOR" means, for any Interest Accrual Period, the London interbank
offered quotations for one-month Dollar deposits on the related LIBOR
Determination Date determined by the Trustee in accordance with the provisions
of Section 4.15.

         "LIBOR Determination Date" means, for any Interest Accrual Period
following the initial Interest Accrual Period, the second Business Day prior to
the commencement of the second and each subsequent Interest Accrual Period. With
respect to the initial Interest Accrual Period, the Trustee will determine LIBOR
on September 10, 1998 for the period from September 14, 1998 up to but excluding
October 13, 1998. For purposes of this definition, the term "Business Day" means
any day on which banks in London and New York are open for the transaction of
international business.

         "Minimum Aggregate Principal Receivables" means the sum of all
numerators used to calculate the allocation percentages with respect to
Principal Collections for all Series.

         "Minimum Transferor Interest" means, as of any date of determination,
the sum of the product for each Series of (i) the Minimum Transferor Percentage
for such Series, times (ii) the Invested Amount for such Series.

         "Minimum Transferor Percentage" is 4% with respect to the Series 1998-2
Certificates.

         "Monthly Payment Rate" means, for any Monthly Period, the percentage
equivalent of a fraction, the numerator of which is the aggregate of the
Receivables balances (without deducting therefrom the discount portion, if any)
collected during such Monthly Period and the denominator of which is the average
daily aggregate Receivables balance (without deducting therefrom the discount
portion, if any) for such Monthly Period.

         "Monthly Period" shall have the meaning specified in the Agreement,
except that the first Monthly Period with respect to the Series 1998-2
Certificates shall begin on and include September 14, 1998.

         "Monthly Servicing Fee" means the portion of the servicing fee
allocable to the Series 1998-2 Certificateholders' Interest during each Monthly
Period, which will be equal to one-twelfth of the product of (x) the Servicing
Fee Rate per annum and (y) the Invested Amount on the first day of such Monthly
Period or, in the case of the first Distribution Date, the initial principal
amount of the Series 1998-2 Certificates.

                                     - 15 -
<PAGE>
 
         "Negative Carry Amount" means, for any Business Day, to the extent that
any amounts are on deposit in the Excess Funding Account or the Pre-Funding
Account on such Business Day, an amount equal to the excess of (x) the product
of (a) the Base Rate, (b) the aggregate amount on deposit in the Excess Funding
Account and the Pre-Funding Account and (c) the number of days elapsed since the
previous Business Day divided by the actual number of days in such year over (y)
the aggregate amount of all earnings since the previous Business Day available
from the Cash Equivalents in which funds on deposit in the Excess Funding
Account and the Pre-Funding Account are invested.

         "Net Receivables Rate" means, for any Distribution Date, the sum of (i)
the weighted average of the interest rates borne by the Receivables during the
second preceding Monthly Period (because interest payments on the Receivables at
such rates will be due and payable in the Monthly Period preceding such
Distribution Date), plus (ii) the product of (x) the Monthly Payment Rate for
the Monthly Period preceding such Distribution Date, the (y) Discount Factor, if
any, for such Distribution Date, and (z) twelve, less 2% per annum, unless the
Servicing Fee has been waived for such Monthly Period.

         "Paying Agent" means, for the Series 1998-2 Certificates, Norwest Bank
Minnesota, National Association and Banque Generale du Luxembourg.

         "Period Length Determination Date" means the Determination Date
immediately preceding the November 2001 Distribution Date and each Determination
Date thereafter until the Controlled Accumulation Period commences.

         "Pre-Allocated Invested Amount" means, on any date, (a) the amount of
principal paid on the Series 1995-1 Certificates on the September 1998
Distribution Date, plus the aggregate amount of principal paid to the Series
1995-1 Certificateholders on each subsequent Distribution Date, plus the
aggregate amount deposited in the Principal Account for Series 1995-1 but not
yet paid to the Series 1995-1 Certificateholders, or (b) on and after the date
the amount described in (a) is equal to $460,000,000, zero.

         "Pre-Funded Amount" shall mean (a) the Initial Pre-Funded Amount, minus
(b) the amount of any increases in the Invested Amount during the Funding Period
pursuant to Section 4.18, minus (c) the amount of any principal losses on funds
on deposit in the Pre-Funding Account and minus (d) the amount withdrawn from
the Pre-Funding Account and deposited in the Excess Funding Account pursuant to
Section 4.17(b).

         "Pre-Funding Account" means the account established and maintained
pursuant to subsection 4.17(a).


                                     - 16 -
<PAGE>
 
         "Principal Funding Investment Shortfall" means, for any day, the
difference between the amount of interest actually earned on investments in the
Principal Account on any day and the amount of interest that would have been
earned on such investments at the Base Rate for such day.

         "Principal Investment Proceeds" means investment earnings (net of
investment losses and expenses) on funds on deposit in the Principal Account
during the Controlled Accumulation Period.

         "Principal Shortfalls" means the amounts representing scheduled or
permitted principal distributions to certificateholders and deposits to
principal funding accounts, if any, for any Series that have not been covered
out of the Principal Collections allocable to such Series and certain other
amounts.

         "Product Line Overconcentration" on any Distribution Date means the
excess of (a) the aggregate of all amounts of Principal Receivables in the
Accounts that represent financing for a single product line (other than
Asset-Based Receivables and Receivables that represent financing for
manufactured housing) on the last day of the Monthly Period immediately
preceding such Distribution Date over (b) 5% for marine products, 25% for
recreational vehicles, and 5% for any other products in total, of the total
Principal Receivables on the last day of such immediately preceding Monthly
Period. Notwithstanding the above, in the case of each such Overconcentration,
the percentage in clause (b) for such Overconcentration may be increased or
decreased by the Transferor, without the consent of any Certificateholder, to a
level acceptable to each Rating Agency without any reduction or withdrawal of
its rating of any Certificates rated by it (but which may involve an adjustment,
upward or downward, of certain Invested Amounts).

         "Purchase Agreement" means the Receivables Purchase Agreement dated as
of December 1, 1995, between the Transferor and Green Tree Financial
Corporation.

         "Qualified Institution" means a depository institution or trust
company, which may include the Trustee, organized under the laws of the United
States or any one of the states thereof, which at all items has a certificate of
deposit rating of P-1 by Moody's, of A-1+ by Standard & Poor's, of F-1+ by Fitch
if rated by Fitch or long-term unsecured debt obligation (other than such
obligation the rating of which is based on collateral or on the credit of a
person other than such institution or trust company) rating of Aaa by Moody's,
of AAA by Standard & Poor's, and of AAA by Fitch if rated by Fitch and deposit
insurance provided by the FDIC, or a depository institution, which may include
the Trustee, which is acceptable to the Rating Agencies; provided, however, that
no such rating shall be required of an institution which shall have corporate
trust powers and which maintains the Collection Account, any principal account,
any interest funding account or any other account maintained for the benefit of
Certificateholders as a fully segregated trust account with the trust department
of such institution which is rated at least Baa3 by Moody's

                                     - 17 -
<PAGE>
 
         "Rating Agency" means each of Standard & Poor's Rating Services, a
Division of The McGraw-Hill Companies, Inc. ("Standard & Poor's"), Moody's
Investors Service, Inc. ("Moody's") and Fitch IBCA, Inc. ("Fitch").

         "Reallocated Class B Principal Collections" shall have the meaning
specified in subsection 4.14(c).

         "Reallocated Class C Principal Collections" shall have the meaning
specified in subsection 4.14(b).

         "Reallocated Class D Principal Collections" shall have the meaning
specified in subsection 4.14(a).

         "Reallocated Principal Collections" means the sum of Reallocated Class
B Principal Collections, Reallocated Class C Principal Collections and
Reallocated Class D Principal Collections.

         "Reference Banks" shall mean three major banks in the London interbank
market selected by the Servicer to determine and provide LIBOR on the basis of
quotations of the offered rates for one-month United States dollar deposits
following the LIBOR Determination Date.

         "Required Amount" shall have the meaning specified in Section 4.10.

         "Revolving Period" with respect to Series 1998-2 means the period from
and including the Series 1998-2 Issuance Date to, but not including, the
earliest of (a) if the Initial Principal Payment Date is not extended, the
Monthly Period preceding the Initial Principal Payment Date, (b) the
commencement of the Controlled Accumulation Period and (c) the occurrence of a
Pay Out Event.

         "Series 1998-2" means the Series of the Green Tree Floorplan
Receivables Master Trust represented by the Series 1998-2 Certificates.

         "Series 1998-2 Certificateholder" means the holder of record of any
Series 1998-2 Certificate.

         "Series 1998-2 Certificateholders' Interest" shall have the meaning
specified in Section 4.4.

         "Series 1998-2 Issuance Date" means September 14, 1998.

         "Series 1998-2 Pay Out Event" shall have the meaning specified in
Section 8 of this Series Supplement.


                                     - 18 -
<PAGE>
 
         "Series 1998-2 Termination Date" means the earlier of (i) the date in
which the final distribution of principal and interest on the Series 1998-2
Certificates is made and (ii) the April 2004 Distribution Date.

         "Series Available Interest Collections" shall have the meaning
specified in Section 4.9(a).

         "Servicing Fee Rate" means 2.00% per annum.

         "Shared Principal Collections" means, as the context requires, either
(a) the amount allocated to the Series 1998-2 Investor Certificates which, in
accordance with subsections 4.9(b) and 4.9(c)(v) of the Agreement, may be
applied in accordance with Section 4.3(e) of the Agreement or (b) the amounts
allocated to the investor certificates (other than Transferor Retained
Certificates) of other Series which the applicable Supplements for such Series
specify are to be treated as "Shared Principal Collections" and which may be
applied as principal with respect to the Series 1998-2 Certificates.

         "Targeted Holder" shall mean each holder of a right to receive interest
or principal with respect to the Class C Certificates (or other interests in the
Trust), other than Certificates (or other such interests) with respect to which
an opinion is rendered that such Certificates (or other such interests) will be
treated as debt for federal income tax purposes, and any holder of a right to
receive any amount in respect of the Exchangeable Transferor Certificate;
provided, that any Person holding more than one interest each of which would
cause such Person to be a Targeted Holder shall be treated as a single Targeted
Holder.

         "Termination Payment Date" means the earlier of the first Distribution
Date following the liquidation or sale of the Receivables as a result of an
Insolvency Event and the occurrence of the Series 1998-2 Termination Date.

         "Transfer" shall have the meaning specified in subsection 11(a) of this
Series Supplement.

         "Transferor Interest Collections" means, on any Business Day, the
product of (a) the Interest Collections, (b) the Transferor Percentage and (c)
the Series Allocation Percentage for such Business Day.

         "Transferor Retained Certificates" means, with respect to Series
1998-2, the Class D Certificates, which the Transferor retains, but only to the
extent that and for so long as the Transferor is the Holder of such
Certificates.

         "Trust Accounts" means the Interest Funding Account, the Principal
Account, the Distribution Account, the Collection Account, the Excess Funding
Account, the Pre-Funding Account and the Class D Subaccount of the Excess
Funding Account.


                                     - 19 -
<PAGE>
 
         SECTION 3. Optional Repurchase. The Series 1998-2 Certificates shall be
subject to termination by the Transferor at its option, in accordance with the
terms specified in subsection 12.2(a) of the Agreement, on any Distribution Date
on or after the Distribution Date on which the sum of the Class A Invested
Amount, the Class B Invested Amount and the Class C Invested Amount is reduced
to an amount less than or equal to 10% of the sum of the Class A Initial
Invested Amount, the Class B Initial Invested Amount and the Class C Initial
Invested Amount. The deposit required in connection with any such termination
and final distribution shall be equal to the sum of the Class A Invested Amount,
the Class B Invested Amount and the Class C Invested Amount plus accrued and
unpaid interest on the Class A Certificates, Class B Certificates and Class C
Certificates through the day prior to the Distribution Date on which the final
distribution occurs.

         SECTION 4. Delivery and Payment for the Series 1998-2 Certificates. The
Transferor shall execute and deliver the Series 1998-2 Certificates to the
Trustee for authentication in accordance with Section 6.1 of the Agreement. The
Trustee shall deliver the Series 1998-2 Certificates to or upon the order of the
Transferor when authenticated in accordance with Section 6.2 of the Agreement.
It is a condition to the issuance of the Class A Certificates that they be rated
"AAA" by Standard & Poor's, "Aaa" by Moody's and "AAA" by Fitch. It is a
condition to the issuance of the Class B Certificates that they be rated at
least "A" by Standard & Poor's, "A3" by Moody's and "AA-" by Fitch. It is a
condition to the issuance of the Class C Certificates that they be rated at
least "BBB" by Fitch.

         SECTION 5. Form of Delivery of Series 1998-2 Certificates. The Class A
Certificates, the Class B Certificates, the Class C Certificates and the Class D
Certificates shall be delivered as Registered Certificates as provided in
Section 6.1 of the Agreement. The Class C Certificates and the Class D
Certificates shall not be represented by Book-Entry Certificates pursuant to
Section 6.10.

         SECTION 6. Article IV of Agreement. Sections 4.1, 4.2 and 4.3 of the
Agreement shall read in their entirety as provided in the Agreement. Article IV
of the Agreement (except for Sections 4.1, 4.2 and 4.3 thereof) shall read in
its entirety as follows and shall be applicable only to the Series 1998-2
Certificates:

                                   ARTICLE IV

                        RIGHTS OF CERTIFICATEHOLDERS AND
                    ALLOCATION AND APPLICATION OF COLLECTIONS

         Section 4.4 Rights of Certificateholders. The Series 1998-2
Certificates shall represent undivided interests in the Trust, consisting of the
right to receive, to the extent necessary to make the required payments with
respect to such Series 1998-2 Certificates at the times and in the amounts
specified in this Agreement, (a) the Floating Allocation Percentage and the
Fixed/Floating Allocation Percentage (as applicable from

                                     - 20 -
<PAGE>
 
time to time) of Collections available in the Collection Account, (b) funds
allocable to the Series 1998-2 Certificates on deposit in the Excess Funding
Account, the Class D Subaccount of the Excess Funding Account and the
Pre-Funding Account and (c) funds on deposit in the Interest Funding Account,
the Principal Account and the Distribution Account (for such Series, the "Series
1998-2 Certificateholders' Interest"). The Class B Invested Amount, the Class C
Invested Amount and the Class D Invested Amount shall be subordinated to the
Class A Certificates, the Class C Invested Amount and the Class D Invested
Amount shall be subordinated to the Class B Certificates, and the Class D
Invested Amount shall be subordinated to the Class C Certificates, in each case
to the extent provided in this Article IV. The Class B Certificates will not
have the right to receive payments of principal until the Class A Invested
Amount has been paid in full. The Class C Certificates will not have the right
to receive payments of principal until the Class A Invested Amount and the Class
B Invested Amount have been paid in full. The Class D Certificates will not have
the right to receive payments of principal until the Class A Invested Amount,
the Class B Invested Amount and the Class C Invested Amount have been paid in
full.

         Section 4.5 Collections and Allocation; Payments on Exchangeable
Transferor Certificate.

         (a) Collections. The Servicer will apply or will instruct the Trustee
to apply all funds on deposit in the Collection Account and the Excess Funding
Account (including the Class D Subaccount) allocable to the Series 1998-2
Certificates, and all funds on deposit in the Interest Funding Account, the
Principal Account, the Distribution Account and the Pre-Funding Account
maintained for this Series, as described in this Article IV.

         (b) Payments to the Holder of the Exchangeable Transferor Certificate.
On each Business Day, the Servicer shall determine whether a Pay Out Event is
deemed to have occurred with respect to the Series 1998-2 Certificates, and the
Servicer shall allocate and pay Collections in accordance with the Daily Report
with respect to such Business Day to the Holder of the Exchangeable Transferor
Certificate as follows:

                  (i) For each Business Day with respect to the Revolving
         Period, in addition to amounts allocated and paid to the Holder of the
         Exchangeable Transferor Certificate or pursuant to subsection 4.3(b) of
         the Agreement, an amount equal (x) to the product of the Class D
         Floating Allocation Percentage and the amount of Principal Collections
         on such Business Day, minus (y) the Reallocated Class D Principal
         Collections;

                  (ii) For each Business Day with respect to the Controlled
         Accumulation Period or Early Amortization Period, prior to the Business
         Day on which an amount equal to the Class C Invested Amount has been
         deposited in the Principal Account to be applied to the payment of
         Class C Principal, in addition to amounts allocated and paid to the
         Holder of the Exchangeable Transferor

                                     - 21 -
<PAGE>
 
         Certificate pursuant to subsection 4.3(b) of the Agreement, an amount
         equal to (x) the product of the Class D Fixed/Floating Allocation
         Percentage and the amount of Principal Collections on such Business Day
         minus (y) the Reallocated Class D Principal Collections; provided that
         if such Business Day is in the Early Amortization Period, such amount
         shall instead be deposited in the Class D Subaccount; and

                  (iii) For each Business Day on and after the day on which
         Principal Collections are being deposited in the Principal Account
         pursuant to Section 4.9(c)(iv), the amount of payments of Principal
         Collections made to the Holder of the Exchangeable Transferor
         Certificate shall be determined only as provided in subsection 4.3(b)
         of the Agreement.

         Notwithstanding the foregoing, amounts payable to the Transferor
pursuant to subsection 4.5(b)(i) or (ii) shall instead be deposited in the
Excess Funding Account to the extent necessary to prevent the Transferor
Interest from being less than the Minimum Transferor Interest.

         The allocations to be made pursuant to this subsection 4.5(b) also
apply to deposits into the Collection Account that are treated as Collections,
including payment of the reassignment price pursuant to Sections 2.4(c) and (d)
of the Agreement and proceeds from the sale, disposition or liquidation of the
Receivables pursuant to Section 9.2, 10.2, 12.1 or 12.2 of the Agreement and
Section 3 of this Series Supplement. Such deposits to be treated as Collections
will be allocated as Interest Receivables or Principal Receivables as provided
in the Agreement.

         Section 4.6 Determination of Monthly Interest for the Series 1998-2
Certificates.

         (a) The amount of monthly interest (the "Class A Monthly Interest")
allocable to the Class A Certificates with respect to any Interest Accrual
Period shall be an amount equal to the product of (i) the Class A Certificate
Rate, (ii) a fraction, the numerator of which is the actual number of days in
such Interest Accrual Period and the denominator of which is 360 and (iii) the
outstanding principal balance of the Class A Certificates at the close of
business on the first day of such Interest Accrual Period or, with respect to
the first Distribution Date, the initial outstanding principal balance of the
Class A Certificates.

         On the Determination Date preceding each Distribution Date, the
Servicer shall determine an amount (the "Class A Interest Shortfall") equal to
the excess, if any, of (x) the Class A Monthly Interest for the Interest Accrual
Period applicable to the Distribution Date over (y) the amount available to be
paid to the Class A Certificateholders in respect of interest on such
Distribution Date. If there is a Class A Interest Shortfall with respect to any
Distribution Date, an additional amount ("Class A Additional Interest") shall be
payable as provided herein with respect to the Class A Certificates on each
Distribution Date following such Distribution Date, to and

                                     - 22 -
<PAGE>
 
including the Distribution Date on which such Class A Interest Shortfall is paid
to Class A Certificateholders, equal to the product of (i) the Class A
Certificate Rate, (ii) such Class A Interest Shortfall remaining unpaid and
(iii) a fraction, the numerator of which is the actual number of days in the
related Interest Accrual Period and the denominator of which is 360.
Notwithstanding anything to the contrary herein, Class A Additional Interest
shall be payable or distributed to Class A Certificateholders only to the extent
permitted by applicable law.

         (b) The amount of monthly interest (the "Class B Monthly Interest")
allocable to the Class B Certificates with respect to any Interest Accrual
Period shall be an amount equal to the product of (i) the Class B Certificate
Rate, (ii) the actual number of days in such Interest Accrual Period divided by
360 and (iii) with respect to the Funding Period, the outstanding principal
balance of the Class B Certificates at the close of business on the first day of
such Interest Accrual Period (or, with respect to the first Distribution Date,
the initial outstanding principal balance of the Class B Certificates) and,
after the Funding Period, the Class B Invested Amount at the close of business
on the first day of such Interest Accrual Period.

         On the Determination Date preceding each Distribution Date, the
Servicer shall determine an amount (the "Class B Interest Shortfall") equal to
the excess, if any, of (x) the Class B Monthly Interest for the Interest Accrual
Period applicable to the Distribution Date over (y) the amount available to be
paid to the Class B Certificateholders in respect of interest on such
Distribution Date. If there is a Class B Interest Shortfall with respect to any
Distribution Date, an additional amount ("Class B Additional Interest") shall be
payable as provided herein with respect to the Class B Certificates on each
Distribution Date following such Distribution Date, to and including the
Distribution Date on which such Class B Interest Shortfall is paid to Class B
Certificateholders, equal to the product of (i) the Class B Certificate Rate,
(ii) such Class B Interest Shortfall remaining unpaid and (iii) a fraction, the
numerator of which is the actual number of days in the related Interest Accrual
Period and the denominator of which is 360. Notwithstanding anything to the
contrary herein, Class B Additional Interest shall be payable or distributed to
Class B Certificateholders only to the extent permitted by applicable law.

         (c) The amount of monthly interest (the "Class C Monthly Interest")
allocable to the Class C Certificates with respect to any Interest Accrual
Period shall be an amount equal to the product of (i) the Class C Certificate
Rate, (ii) the actual number of days in such Interest Accrual Period divided by
360 and (iii) with respect to the Funding Period, the outstanding principal
balance of the Class C Certificates at the close of business on the first day of
such Interest Accrual Period (or, with respect to the first Distribution Date,
the initial outstanding principal balance of the Class C Certificates) and,
after the Funding Period, the Class C Invested Amount at the close of business
on the first day of such Interest Accrual Period.


                                     - 23 -
<PAGE>
 
         On the Determination Date preceding each Distribution Date, the
Servicer shall determine an amount (the "Class C Interest Shortfall") equal to
the excess, if any, of (x) the Class C Monthly Interest for the Interest Accrual
Period applicable to the Distribution Date over (y) the amount available to be
paid to the Class C Certificateholders in respect of interest on such
Distribution Date. If there is a Class C Interest Shortfall with respect to any
Distribution Date, an additional amount ("Class C Additional Interest") shall be
payable as provided herein with respect to the Class C Certificates on each
Distribution Date following such Distribution Date, to and including the
Distribution Date on which such Class C Interest Shortfall is paid to Class C
Certificateholders, equal to the product of (i) the Class C Certificate Rate,
(ii) such Class C Interest Shortfall remaining unpaid and (iii) a fraction, the
numerator of which is the actual number of days in the related Interest Accrual
Period and the denominator of which is 360. Notwithstanding anything to the
contrary herein, Class C Additional Interest shall be payable or distributed to
Class C Certificateholders only to the extent permitted by applicable law.

         (d) The amount of monthly interest (the "Class D Monthly Interest")
allocable to the Class D Certificates with respect to any Interest Accrual
Period shall be an amount equal to the product of (i) the Class D Certificate
Rate, (ii) the actual number of days in such Interest Accrual Period divided by
360 and (iii) with respect to the Funding Period, the outstanding principal
balance of the Class D Certificates at the close of business on the first day of
such Interest Accrual Period (or, with respect to the first Distribution Date,
the initial outstanding principal balance of the Class D Certificates) and,
after the Funding Period, the Class D Invested Amount at the close of business
on the first day of such Interest Accrual Period.

         On the Determination Date preceding each Distribution Date, the
Servicer shall determine an amount (the "Class D Interest Shortfall") equal to
the excess, if any, of (x) the Class D Monthly Interest for the Interest Accrual
Period applicable to the Distribution Date over (y) the amount available to be
paid to the Class D Certificateholders in respect of interest on such
Distribution Date. If there is a Class D Interest Shortfall with respect to any
Distribution Date, an additional amount ("Class D Additional Interest") shall be
payable as provided herein with respect to the Class D Certificates on each
Distribution Date following such Distribution Date, to and including the
Distribution Date on which such Class D Interest Shortfall is paid to Class D
Certificateholders, equal to the product of (i) the Class D Certificate Rate,
(ii) such Class D Interest Shortfall remaining unpaid and (iii) a fraction, the
numerator of which is the actual number of days in the related Interest Accrual
Period and the denominator of which is 360. Notwithstanding anything to the
contrary herein, Class D Additional Interest shall be payable or distributed to
Class D Certificateholders only to the extent permitted by applicable law.


                                     - 24 -
<PAGE>
 
         Section 4.7  Determination of Principal Amounts.

         (a) The amount of principal (the "Class A Principal") with respect to
the Class A Certificates for each Distribution Date during the Controlled
Accumulation Period or Early Amortization Period shall be equal to an amount
calculated as follows: the sum of (i) an amount equal to the product of the ABC
Fixed/Floating Allocation Percentage and the aggregate amount of Principal
Collections (less the amount of Reallocated Class B Principal Collections and
Reallocated Class C Principal Collections) with respect to the preceding Monthly
Period, (ii) any amount on deposit in the Excess Funding Account (exclusive of
amounts, if any, in the Class D Subaccount) allocated to the Class A
Certificates pursuant to subsection 4.9(d) of the Agreement, and any amount on
deposit in the Pre-Funding Account (exclusive of any investment earnings)
allocated to the Class A Certificates pursuant to Section 4.18, with respect to
the preceding Monthly Period, (iii) the amount, if any, allocated to the Class A
Certificates pursuant to subsections 4.9(a)(iv), (vi), (viii) and (ix) of the
Agreement and, with respect to such subsections, pursuant to subsections 4.10(a)
and (b) and 4.14(a), (b) and (c) of the Agreement, and (iv) the amount of Shared
Principal Collections allocated to the Class A Certificates with respect to the
preceding Monthly Period pursuant to Section 4.8 of the Agreement; provided,
however, that with respect to any Distribution Date during the Controlled
Accumulation Period, Class A Principal may not exceed the lesser of (i) the
Controlled Deposit Amount for such Distribution Date and (ii) the Class A
Invested Amount; provided, further, that with respect to the Series 1998-2
Termination Date, the Class A Principal shall be an amount equal to the Class A
Invested Amount.

         (b) The amount of principal (the "Class B Principal") with respect to
the Class B Certificates for each Distribution Date on or after the Class B
Principal Commencement Date shall equal an amount calculated as follows: the sum
of (i) an amount equal to the product of the ABC Fixed/Floating Allocation
Percentage and the aggregate amount of Principal Collections (less the amount of
Reallocated Class B Principal Collections and Reallocated Class C Principal
Collections) with respect to the preceding Monthly Period (or, in the case of
the first Distribution Date following the date on which an amount equal to the
Class A Invested Amount is deposited in the Principal Account to be applied to
the payment of Class A Principal, the ABC Fixed/Floating Allocation Percentage
of Principal Collections from the date on which such deposit is made), (ii) any
amount on deposit in the Excess Funding Account (exclusive of amounts, if any,
in the Class D Subaccount) allocated to the Class B Certificates pursuant to
subsection 4.9(d) of the Agreement, and any amount on deposit in the Pre-Funding
Account (exclusive of any investment earnings) allocated to the Class B
Certificates pursuant to Section 4.18, with respect to the preceding Monthly
Period, (iii) the amount, if any, allocated to the Class B Certificates pursuant
to subsections 4.9(a)(iv), (viii) and (ix) of the Agreement and, with respect to
such subsections, pursuant to subsections 4.10(a) and (b) and 4.14(a) and (b) of
the Agreement with respect to such Distribution Date and (iv) the amount of
Shared Principal Collections allocated to the Class B Certificates with respect
to the preceding Monthly Period pursuant to Section 4.8 of the Agreement on or
after the Class B

                                     - 25 -
<PAGE>
 
Principal Commencement Date; provided, however, that, with respect to any
Distribution Date, Class B Principal may not exceed the Class B Invested Amount;
provided, further, that with respect to the Series 1998-2 Termination Date, the
Class B Principal shall be an amount equal to the Class B Invested Amount.

         (c) The amount of principal (the "Class C Principal") with respect to
the Class C Certificates for each Distribution Date beginning on or after the
Class C Principal Commencement Date shall equal an amount calculated as follows:
the sum of (i) an amount equal to the product of the ABC Fixed/Floating
Allocation Percentage and the aggregate amount of Principal Collections (less
the amount of Reallocated Class C Principal Collections) with respect to the
preceding Monthly Period (or, in the case of the first Distribution Date
following the date on which an amount equal to the Class B Invested Amount is
deposited in the Principal Account to be applied to the payment of Class B
Principal, the ABC Fixed/Floating Allocation Percentage of Principal Collections
from the date on which such deposit is made), (ii) any amounts on deposit in the
Excess Funding Account (other than the Class D Subaccount) allocated to the
Class C Certificates pursuant to subsection 4.9(d) of the Agreement, and any
amount on deposit in the Pre-Funding Account (exclusive of any investment
earnings) allocated to the Class C Certificates pursuant to Section 4.18, with
respect to the preceding Monthly Period, (iii) the amount, if any, allocated to
the Class C Certificates pursuant to subsections 4.9(a)(iv) and (ix) of the
Agreement with respect to such Distribution Date and (iv) the amount of Shared
Principal Collections allocated to the Class C Certificates with respect to the
preceding Monthly Period pursuant to Section 4.8 of the Agreement on and after
the Class C Principal Commencement Date; provided, however, that with respect to
any Distribution Date, Class C Principal may not exceed the Class C Invested
Amount; provided, further, that with respect to the Series 1998-2 Termination
Date, the Class C Principal shall be an amount equal to the Class C Invested
Amount.

         (d) The amount of principal (the "Class D Principal") with respect to
the Class D Certificates for the Transfer Date preceding the Class D Principal
Commencement Date, and for each Transfer Date thereafter until the Trust is
terminated or until the Class D Invested Amount is paid in full, shall equal an
amount calculated as follows: the sum of (i) an amount equal to the product of
the Class D Fixed/Floating Allocation Percentage of Principal Collections (less
the amount of Reallocated Class D Principal Collections) with respect to the
preceding Monthly Period (or, in the case of the first Distribution Date
following the date on which an amount equal to the Class C Invested Amount is
deposited in the Principal Account to be applied to the payment of Class C
Principal, the Class D Fixed/Floating Allocation Percentage of Principal
Collections from the date on which such deposit is made), (ii) any amount on
deposit in the Excess Funding Account allocated to the Class D Certificates
pursuant to subsection 4.9(d) of the Agreement with respect to the preceding
Monthly Period, and (iii) the amount, if any, allocated to the Class D
Certificates pursuant to subsections 4.9(a)(v) and (x) of the Agreement and,
with respect to such subsections, pursuant to subsection 4.10(a) and (b) of the
Agreement with respect to such Distribution Date; provided, however, that with

                                     - 26 -
<PAGE>
 
respect to the Series 1998-2 Termination Date, the Class D Principal shall be an
amount equal to the Class D Invested Amount.

         Section 4.8 Shared Principal Collections. Shared Principal Collections
allocated to the Series 1998-2 Certificates and to be applied pursuant to
subsections 4.9(c)(i)(y), 4.9(c)(ii)(y), 4.9(c)(iii)(y) and 4.9(c)(iv)(z) for
any Business Day with respect to the Controlled Accumulation Period shall mean
an amount equal to the product of (x) Shared Principal Collections for all
Series for such Business Day and (y) a fraction, the numerator of which is the
Principal Shortfall for the Series 1998-2 Certificates for such Business Day and
the denominator of which is the aggregate amount of Principal Shortfalls for all
Series for such Business Day. For any Business Day with respect to the Revolving
Period, Shared Principal Collections allocated to the Series 1998-2 Certificates
shall be zero.

         Section 4.9 Application of Funds on Deposit in the Collection Account
for the Certificates.

         (a) On each Business Day, the Servicer shall deliver to the Trustee a
Daily Report in which it shall instruct the Trustee to withdraw, and the
Trustee, acting in accordance with such instructions, shall withdraw, to the
extent of the amount of the Floating Allocation Percentage of Interest
Collections available in the Collection Account and net investment earnings on
amounts in the Pre-Funding Account (the "Series Available Interest
Collections"), the amounts required to be withdrawn from the Collection Account
pursuant to subsections 4.9(a)(i) through 4.9(a)(xiv).

                  (i) Class A Interest. On each Business Day during a Monthly
         Period, the Trustee, acting in accordance with instructions from the
         Servicer, shall withdraw from the Collection Account and deposit into
         the Interest Funding Account for distribution on the next Distribution
         Date to the Class A Certificateholders, to the extent of the Series
         Available Interest Collections for such Business Day, an amount equal
         to the lesser of (x) the Series Available Interest Collections and (y)
         the excess of (1) the sum of Class A Monthly Interest and Carryover
         Class A Interest over (2) any amounts with respect thereto previously
         deposited into the Interest Funding Account on any prior Business Day
         during such Monthly Period. Notwithstanding anything to the contrary
         herein, the portion of Carryover Class A Interest that constitutes
         Class A Additional Interest shall be payable or distributable to Class
         A Certificateholders only to the extent permitted by applicable law.

                  (ii) Class B Interest. On each Business Day during a Monthly
         Period, the Trustee, acting in accordance with instructions from the
         Servicer, shall withdraw from the Collection Account and deposit into
         the Interest Funding Account for distribution on the next Distribution
         Date to the Class B Certificateholders, to the extent of any Series
         Available Interest Collections remaining after giving effect to the
         withdrawal pursuant to subsection 4.9(a)(i),

                                     - 27 -
<PAGE>
 
         an amount equal to the lesser of (x) any such remaining Series
         Available Interest Collections and (y) the excess of (1) the sum of
         Class B Monthly Interest and Carryover Class B Interest over (2) any
         amounts with respect thereto previously deposited into the Interest
         Funding Account on any prior Business Day during such Monthly Period.
         Notwithstanding anything to the contrary herein, the portion of
         Carryover Class B Interest that constitutes Class B Additional Interest
         shall be payable or distributable to Class B Certificateholders only to
         the extent permitted by applicable law.

                  (iii) Monthly Servicing Fee. On each Business Day on which
         Green Tree or an Affiliate of Green Tree is not the Servicer, the
         Trustee, acting in accordance with instructions from the Servicer,
         shall withdraw from the Collection Account and distribute to the
         Servicer, to the extent of any Series Available Interest Collections
         remaining after giving effect to the withdrawals pursuant to
         subsections 4.9(a)(i) and (ii), an amount equal to the lesser of (x)
         any such remaining Series Available Interest Collections and (y) the
         excess of (i) the Monthly Servicing Fee for such Monthly Period plus
         any unpaid Monthly Servicing Fees from prior Monthly Periods over (ii)
         any amounts with respect thereto previously distributed to the Servicer
         during such Monthly Period.

                  (iv) ABC Investor Default Amount. On each Business Day, the
         Trustee, acting in accordance with instructions from the Servicer,
         shall withdraw from the Collection Account, to the extent of any Series
         Available Interest Collections remaining after giving effect to the
         withdrawals pursuant to subsections 4.9(a)(i) through (iii), an amount
         equal to the lesser of (x) any such remaining Series Available Interest
         Collections and (y) the sum of (1) the aggregate ABC Investor Default
         Amount for such Business Day plus (2) the unpaid ABC Investor Default
         Amount for each previous Business Day during such Monthly Period, such
         amount to be (A) treated as Shared Principal Collections during the
         Revolving Period, and (B) to the extent allocated to Class A Principal,
         Class B Principal or Class C Principal pursuant to Section 4.7 during
         the Controlled Accumulation Period or Early Amortization Period,
         deposited in the Principal Account for distribution to the applicable
         Class or Classes of Certificateholders on the next Distribution Date.

                  (v) Class D Investor Default Amount. On each Business Day, the
         Trustee, acting in accordance with instructions from the Servicer,
         shall withdraw from the Collection Account, to the extent of any Series
         Available Interest Collections remaining after giving effect to the
         withdrawals pursuant to subsections 4.9(a)(i) through (iv), an amount
         equal to the lesser of (x) any such remaining Series Available Interest
         Collections and (y) the sum of (1) the aggregate Class D Investor
         Default Amount for such Business Day plus (2) the unpaid Class D
         Investor Default Amount for each previous Business Day during such
         Monthly Period, such amount to be (A) paid to the Transferor during the
         Revolving Period and during the Controlled Accumulation Period prior to
         the

                                     - 28 -
<PAGE>
 
         date on which an amount equal to the Class C Invested Amount has been
         deposited in the Principal Account, (B) to the extent allocated to
         Class D Principal pursuant to Section 4.7 during the Controlled
         Accumulation Period or the Early Amortization Period following the date
         on which an amount equal to the Class C Invested Amount has been
         deposited in the Principal Account, deposited in the Principal Account
         for distribution to the Class D Certificateholders on the next
         Distribution Date and (C) during the Early Amortization Period prior to
         the date on which an amount equal to the Class C Invested Amount has
         been deposited in the Principal Account, deposited in the Class D
         Subaccount of the Excess Funding Account to be available to be applied
         as Reallocated Class D Principal Collections until the Class C Invested
         Amount has been paid in full and, after the Class C Invested Amount has
         been paid in full, paid to the Transferor.

                  (vi) Reimbursement of Class A Investor Charge-Off. On each
         Business Day, the Trustee, acting in accordance with instructions from
         the Servicer, shall withdraw from the Collection Account, to the extent
         of any Series Available Interest Collections remaining after giving
         effect to the withdrawals pursuant to subsections 4.9(a)(i) through
         (v), an amount equal to the lesser of (x) any such remaining Series
         Available Interest Collections and (y) the unreimbursed Class A
         Investor Charge-Off, if any, which amount will be applied to reimburse
         Class A Investor Charge-Offs, such amount during the Revolving Period
         to be treated as Shared Principal Collections, and during the
         Controlled Accumulation Period or Early Amortization Period on and
         prior to the date on which an amount equal to the Class A Invested
         Amount is deposited in the Principal Account, to be deposited in the
         Principal Account for distribution to the Class A Certificateholders on
         the next Distribution Date.

                  (vii) Unpaid Class B Interest. On each Business Day, the
         Trustee, acting in accordance with the instructions from the Servicer,
         shall withdraw from the Collection Account and deposit in the Interest
         Funding Account for distribution to the Class B Certificateholders on
         the next Distribution Date, to the extent of any Series Available
         Interest Collections remaining after giving effect to the withdrawals
         pursuant to subsections 4.9(a)(i) through (vi), an amount equal to the
         lesser of (x) any such remaining Series Available Interest Collections
         and (y) the sum of (1) the amount of interest which has accrued with
         respect to the outstanding aggregate principal amount of the Class B
         Certificates at the Class B Certificate Rate but which has not been
         deposited into the Interest Funding Account with respect to the Class B
         Certificateholders and (2) any additional interest (to the extent
         permitted by applicable law) at the Class B Certificate Rate accrued on
         interest that was due during a prior Monthly Period pursuant to this
         subsection but was not deposited in the Interest Funding Account or
         paid to the Class B Certificateholders.


                                     - 29 -
<PAGE>
 
                  (viii) Reimbursement of Class B Investor Charge-Off. On each
         Business Day, the Trustee, acting in accordance with instructions from
         the Servicer, shall withdraw from the Collection Account, to the extent
         of any Series Available Interest Collections remaining after giving
         effect to the withdrawals pursuant to subsections 4.9(a)(i) through
         (vii), an amount equal to the lesser of (x) any such remaining Series
         Available Interest Collections and (y) the unreimbursed amount by which
         the Class B Invested Amount has been reduced on prior Business Days
         pursuant to clauses (c) and (d) of the definition of Class B Invested
         Amount, if any, such amount, (i) during the Revolving Period, to be
         treated as Shared Principal Collections, (ii) during the Controlled
         Accumulation Period or Early Amortization Period but prior to the date
         on which an amount equal to the Class A Invested Amount has been
         deposited in the Principal Account, to be deposited in the Principal
         Account for distribution to the Class A Certificateholders on the next
         Distribution Date, and (iii) during the Controlled Accumulation Period
         or Early Amortization Period, on and after the date on which an amount
         equal to the Class A Invested Amount has been deposited in the
         Principal Account, but prior to the date on which an amount equal to
         the Class B Invested Amount has been deposited in the Principal
         Account, to be deposited in the Principal Account for payment to the
         Class B Certificateholders on the next Distribution Date.

                  (ix) Reimbursement of Class C Investor Charge-Off. On each
         Business Day, the Trustee, acting in accordance with instructions from
         the Servicer, shall withdraw from the Collection Account, to the extent
         of any Series Available Interest Collections remaining after giving
         effect to the withdrawals pursuant to subsections 4.9(a)(i) through
         (viii), an amount equal to the lesser of (x) any such remaining Series
         Available Interest Collections and (y) the unreimbursed amount by which
         the Class C Invested Amount has been reduced on prior Business Days
         pursuant to clauses (c) and (d) of the definition of Class C Invested
         Amount, if any, such amount, (i) during the Revolving Period, to be
         treated as Shared Principal Collections, (ii) during the Controlled
         Accumulation Period or Early Amortization Period but prior to the date
         on which an amount equal to the Class A Invested Amount has been
         deposited in the Principal Account, to be deposited in the Principal
         Account for distribution to the Class A Certificateholders on the next
         Distribution Date, (iii) during the Controlled Accumulation Period or
         Early Amortization Period, on and after the date on which an amount
         equal to the Class A Invested Amount has been deposited in the
         Principal Account, but prior to the date on which an amount equal to
         the Class B Invested Amount has been deposited in the Principal
         Account, to be deposited in the Principal Account for distribution to
         the Class B Certificateholders on the next Distribution Date and (iv)
         on and after the date on which an amount equal to the Class B Invested
         Amount has been deposited in the Principal Account, to be deposited in
         the Principal Account for payment to the Class C Certificateholders on
         the next Distribution Date.


                                     - 30 -
<PAGE>
 
                  (x) Reimbursement of Class D Investor Charge-Off. On each
         Business Day, the Trustee, acting in accordance with instructions from
         the Servicer, shall withdraw from the Collection Account, to the extent
         of any Series Available Interest Collections remaining after giving
         effect to the withdrawals pursuant to subsections 4.9(a)(i) through
         (ix), an amount equal to the lesser of (x) any such remaining Series
         Available Interest Collections and (y) the unreimbursed amount by which
         the Class D Invested Amount has been reduced on prior Business Days
         pursuant to clauses (e) and (f) of the definition of Class D Invested
         Amount, if any, such amount, (i) during the Revolving Period, and
         during the Controlled Accumulation Period on and prior to the date on
         which an amount equal to the Class C Invested Amount has been deposited
         in the Principal Account, paid to the Transferor, (ii) during the Early
         Amortization Period, be deposited in the Class D Subaccount of the
         Excess Funding Account, to be held until the date on which an amount
         equal to the Class C Invested Amount has been deposited in the
         Principal Account, and to be available to be applied as Reallocated
         Class D Principal Collections and (iii) during the Controlled
         Accumulation Period on and after the date on which an amount equal to
         the Class C Invested Amount has been deposited in the Principal
         Account, deposited in the Principal Account for payment to the Class D
         Certificateholders.

                  (xi) Unpaid Class C Interest. On each Business Day, the
         Trustee, acting in accordance with the instructions from the Servicer,
         shall withdraw from the Collection Account and deposit in the Interest
         Funding Account for distribution to the Class C Certificateholders on
         the next Distribution Date, to the extent of any Series Available
         Interest Collections remaining after giving effect to the withdrawals
         pursuant to subsections 4.9(a)(i) through (x), an amount equal to the
         lesser of (x) any such remaining Series Available Interest Collections
         and (y) the excess of (1) the sum of the Class C Monthly Interest and
         Carryover Class C Interest over (2) any amounts with respect thereto
         previously deposited into the Interest Funding Account on any prior
         Business Day during such Monthly Period. Notwithstanding anything to
         the contrary herein, the portion of Carryover Class C Interest that
         constitutes Class C Additional Interest shall be payable or
         distributable to Class C Certificateholders only to the extent
         permitted by applicable law.

                  (xii) Unpaid Class D Interest. On each Business Day, the
         Trustee, acting in accordance with the instructions from the Servicer,
         shall withdraw from the Collection Account and deposit in the Interest
         Funding Account for distribution to the Class D Certificateholders on
         the next Distribution Date, to the extent of any Series Available
         Interest Collections remaining after giving effect to the withdrawals
         pursuant to subsections 4.9(a)(i) through (xi), an amount equal to the
         lesser of (x) any such remaining Series Available Interest Collections
         and (y) the excess of (1) the sum of the Class D Monthly Interest and
         Carryover Class D Interest over (2) any amounts with respect thereto
         previously deposited into the Interest Funding Account on any prior
         Business Day during such Monthly

                                     - 31 -
<PAGE>
 
         Period. Notwithstanding anything to the contrary herein, the portion of
         Carryover Class D Interest that constitutes Class D Additional Interest
         shall be payable or distributable to Class D Certificateholders only to
         the extent permitted by applicable law.

                  (xiii) Monthly Servicing Fee. On each Business Day, if Green
         Tree or an Affiliate of Green Tree is the Servicer, the Trustee, acting
         in accordance with instructions from the Servicer, shall withdraw from
         the Collection Account and distribute to the Servicer, to the extent of
         Series Available Interest Collections for such Business Day remaining
         after giving effect to the withdrawals pursuant to subsections
         4.9(a)(i) through (xii), the Monthly Servicing Fee accrued since the
         preceding Business Day plus any Monthly Servicing Fee due with respect
         to any prior Business Day but not distributed to the Servicer.

                  (xiv) Excess Interest Collections. Any amounts remaining in
         the Collection Account to the extent of any Series Available Interest
         Collections remaining after giving effect to the withdrawals pursuant
         to subsections 4.9(a)(i) through (xiii), shall be treated as Excess
         Interest Collections, and the Servicer shall direct the Trustee in
         writing on each Business Day to withdraw such amounts from the
         Collection Account and to first make such amounts available to pay to
         Certificateholders of other Series to the extent of shortfalls, if any,
         in amounts payable to such certificateholders from Interest Collections
         allocated to such other Series, then to pay any unpaid commercially
         reasonable costs and expenses of a Successor Servicer, if any, and then
         pay any remaining Excess Interest Collections to the Transferor.

         (b) For each Business Day with respect to the Revolving Period, the
funds on deposit in the Collection Account to the extent of the product of (i)
the sum of the Class A Floating Allocation Percentage, the Class B Floating
Allocation Percentage and the Class C Floating Allocation Percentage and (ii)
Principal Collections with respect to such Business Day (less the amount of
Reallocated Class C Principal Collections and Reallocated Class B Principal
Collections on such Business Day) will be treated as Shared Principal
Collections and applied, pursuant to the written direction of the Servicer in
the Daily Report for such Business Day, as provided in Section 4.3(e) of the
Agreement.

         (c) For each Business Day on and after the Accumulation Period
Commencement Date or the commencement of the Early Amortization Period, the
amount of funds on deposit in the Collection Account, the Excess Funding Account
and the Pre-Funding Account as described below will be distributed, pursuant to
the written direction of the Servicer in the Daily Report for such Business Day,
in the following priority:

                  (i) on and prior to the day on which an amount equal to the
         Class A Invested Amount has been deposited in the Principal Account to
         be applied to

                                     - 32 -
<PAGE>
 
         the payment of Class A Principal, an amount (not in excess of the Class
         A Invested Amount) equal to the sum of (v) the product of the ABC
         Fixed/ Floating Allocation Percentage and Principal Collections in the
         Collection Account at the end of the preceding Business Day (less the
         amount thereof to be applied as Reallocated Class B Principal
         Collections or Reallocated Class C Principal Collections on such
         Business Day), (w) any amount on deposit in the Excess Funding Account
         allocated to the Class A Certificates on such Business Day pursuant to
         subsection 4.9(d) plus any amount (exclusive of investment earnings) on
         deposit in the Pre-Funding Account, (x) amounts to be paid pursuant to
         subsections 4.9(a)(iv), (vi), (viii) and (ix) of the Agreement from
         Series Available Interest Collections and from amounts available
         pursuant to subsections 4.10(a) and (b) and subsections 4.14(a), (b)
         and (c) of the Agreement on such Business Day and (y) the amount of
         Shared Principal Collections allocated to the Series 1998-2
         Certificates in accordance with Section 4.8 on such Business Day, will
         be deposited into the Principal Account;

                  (ii) on and after the day on which an amount equal to the
         Class A Invested Amount has been deposited in the Principal Account to
         be applied to the payment of Class A Principal, an amount (not in
         excess of the Class B Invested Amount) equal to the sum of (v) an
         amount equal to the product of the ABC Fixed/Floating Allocation
         Percentage and Principal Collections in the Collection Account at the
         end of the preceding Business Day (less the amount thereof to be
         applied as Reallocated Class B Principal Collections or Reallocated
         Class C Principal Collections on such Business Day), (w) any amount on
         deposit in the Excess Funding Account allocated to the Class B
         Certificates on such Business Day pursuant to subsection 4.9(d) plus
         any amount (exclusive of investment earnings) on deposit in the
         Pre-Funding Account, (x) the amount, if any, allocated to be paid to
         the Class B Certificates pursuant to subsections 4.9(a)(iv), (viii) and
         (ix) of the Agreement from Series Available Interest Collections and
         from amounts available pursuant to subsections 4.10(a) and (b) and
         subsections 4.14(a) and (b) of the Agreement with respect to such
         Business Day and (y) the amount of Shared Principal Collections
         allocated to the Series 1998-2 Certificates in accordance with Section
         4.8 on such Business Day (such sum, the "Class B Daily Principal
         Amount") will be deposited into the Principal Account;

                  (iii) on and after the day on which an amount equal to the
         Class B Invested Amount has been deposited in the Principal Account to
         be applied to the payment of Class B Principal, an amount (not in
         excess of the Class C Invested Amount) equal to the sum of (v) an
         amount equal to the product of the ABC Fixed/Floating Allocation
         Percentage and Principal Collections in the Collection Account at the
         end of the preceding Business Day (less the amount thereof to be
         applied as Reallocated Class C Principal Collections on such Business
         Day), (w) any amount on deposit in the Excess Funding Account allocated
         to the Class C Certificates on such Business Day pursuant to subsection

                                     - 33 -
<PAGE>
 
         4.9(d) plus any amount (exclusive of investment earnings) on deposit in
         the Pre-Funding Account, (x) the amount, if any, allocated to be paid
         to the Class C Certificates pursuant to subsections 4.9(a)(iv) and (ix)
         of the Agreement from Series Available Interest Collections and from
         amounts available pursuant to subsections 4.10(a) and (b) and 4.14(a)
         of the Agreement with respect to such Business Day and (y) the amount
         of Shared Principal Collections allocated to the Series 1998-2
         Certificates in accordance with Section 4.8 on such Business Day (such
         sum, the "Class C Daily Principal Amount") will be deposited into the
         Principal Account;

                  (iv) on and after the day on which an amount equal to the
         Class C Invested Amount has been deposited in the Principal Account to
         be applied to the payment of Class C Principal, an amount equal to the
         sum of (w) an amount equal to the product of the Class D Fixed/Floating
         Allocation Percentage and Principal Collections in the Collection
         Account at the end of the preceding Business Day (less the amount
         thereof to be applied as Reallocated Class D Principal Collections on
         such Business Day), (x) any amount on deposit in the Excess Funding
         Account allocated to the Class D Certificates on such Business Day
         pursuant to subsection 4.9(d), (y) the amount, if any, allocated to be
         paid to the Class D Certificates pursuant to subsections 4.9(a)(v) and
         (x) of the Agreement from Series Available Interest Collections and
         from amounts available pursuant to subsections 4.10(a) and (b) of the
         Agreement with respect to such Business Day and (z) the amount of
         Shared Principal Collections allocated to the Series 1998-2
         Certificates in accordance with Section 4.8 on such Business Day (such
         sum, the "Class D Daily Principal Amount") will be distributed to the
         Class D Certificateholders; and

                  (v) notwithstanding subsections 4.9(c)(i), (ii), (iii) and
         (iv), an amount equal to the excess, if any, of (A) the sum of the
         amounts described in clauses (i)(v) and (x), (ii)(v) and (x) and
         (iii)(v) and (x) above over (B) the Class A Principal, Class B
         Principal and Class C Principal, respectively, for the related
         Distribution Date will be treated as Shared Principal Collections and
         applied as provided in subsection 4.3(e) of the Agreement.

         (d) On the first Business Day of the Controlled Accumulation Period or
Early Amortization Period, funds on deposit in the Excess Funding Account
(exclusive of amounts, if any, in the Class D Subaccount) will be deposited in
the Principal Account. Such amounts will be allocated in the following order of
priority: (i) to the Class A Certificates in an amount not to exceed the Class A
Principal for the related Distribution Date after subtracting therefrom any
amounts to be deposited in the Principal Account with respect thereto pursuant
to subsections 4.9(c)(i)(v), (x) and (y), (ii) to the Class B Certificates in an
amount not to exceed the Class B Principal for the related Distribution Date
after subtracting therefrom any amounts to be deposited in the Principal Account
with respect thereto pursuant to subsections 4.9(c)(ii)(v), (x) and (y), and
(iii) to the Class C Certificates in an amount not to exceed the Class C
Principal after subtracting

                                     - 34 -
<PAGE>
 
therefrom any amounts to be deposited in the Principal Account with respect
thereto pursuant to subsections 4.9(c)(iii)(v), (x) and (y). On and after the
Class D Principal Commencement Date any amounts remaining on deposit in the
Excess Funding Account and allocated to the Series 1998-2 Certificates will be
deposited in the Principal Account in an amount not to exceed the Class D
Invested Amount after subtracting therefrom any amounts to be deposited in the
Principal Account with respect thereto pursuant to subsections 4.9(c)(iv)(w),
(x), (y) and (z).

         Section 4.10 Coverage of Required Amount for the Series 1998-2
Certificates.

         (a) To the extent that any amounts are on deposit in the Excess Funding
Account or the Pre-Funding Account on any Business Day, the Servicer shall apply
Transferor Interest Collections in an amount equal to the sum of the Negative
Carry Amount and the Principal Funding Investment Shortfall, if any, for such
Business Day and any prior Business Day in respect of which such amounts have
not been covered pursuant to this sentence in the manner specified for
application of Series Available Interest Collections in subsections 4.9(a)(i)
through (xiii).

         (b) To the extent that on any Business Day payments are being made
pursuant to any of subsections 4.9(a)(i) through (xiii), respectively, and the
full amount to be paid pursuant to any such subsection receiving payments on
such Business Day is not paid in full on such Business Day, the Servicer shall
apply all or a portion of the Excess Interest Collections from other Series with
respect to such Business Day allocable to the Series 1998-2 Certificates in an
amount equal to the excess of the full amount to be allocated or paid pursuant
to the applicable subsection over the amount applied with respect thereto from
Series Available Interest Collections and Transferor Interest Collections
(pursuant to subsection 4.10(a)) on such Business Day (the "Required Amount").
Excess Interest Collections allocated to the Series 1998-2 Certificates for any
Business Day shall mean an amount equal to the product of (x) Excess Interest
Collections available from all other Series for such Business Day and (y) a
fraction, the numerator of which is the Required Amount for such Business Day
and the denominator of which is the aggregate amount of shortfalls in required
amounts or other amounts to be paid from Interest Collections for all Series for
such Business Day.

         Section 4.11 Payment of Certificate Interest. On each Transfer Date,
the Trustee, acting in accordance with instructions from the Servicer set forth
in the Daily Report for such day, shall withdraw the amount on deposit in the
Interest Funding Account with respect to the prior Monthly Period allocable to
the Series 1998-2 Certificates and deposit such amount in the Distribution
Account. On each Distribution Date, the Paying Agent shall pay in accordance
with Section 5.1 of the Agreement to (w) the Class A Certificateholders from the
Distribution Account such amount deposited into the Distribution Account on the
related Transfer Date allocable thereto pursuant to subsection 4.9(a)(i), (x)
the Class B Certificateholders from the Distribution Account the amount
deposited into the Distribution Account allocable thereto pursuant to
subsections 4.9(a)(ii) and (vii), (y) the Class C Certificateholders from the
Distribution

                                     - 35 -
<PAGE>
 
Account the amount deposited into the Distribution Account pursuant to
subsection 4.9(a)(xi), and (z) the Class D Certificateholders from the
Distribution Account the amount deposited into the Distribution Account pursuant
to subsection 4.9(a)(xii).

         Section 4.12  Payment of Certificate Principal.

         (a) On the Transfer Date preceding the Class A Scheduled Payment Date
with respect to the Controlled Accumulation Period or each Distribution Date
with respect to the Early Amortization Period, the Trustee, acting in accordance
with instructions from the Servicer set forth in the Daily Report for such day,
shall withdraw from the Principal Account and deposit in the Distribution
Account, to the extent of funds available, an amount equal to the Class A
Principal for such Distribution Date. On the Class A Scheduled Payment Date (or,
if applicable, such Distribution Date in respect of the Early Amortization
Period), the Paying Agent shall pay in accordance with Section 5.1 to the Class
A Certificateholders from the Distribution Account such amount deposited into
the Distribution Account on the related Transfer Date.

         (b) On the Transfer Date preceding the Class B Principal Payment
Commencement Date and each Distribution Date thereafter, the Trustee, acting in
accordance with instructions from the Servicer set forth in the Daily Report for
such day, shall withdraw from the Principal Account and deposit in the
Distribution Account, to the extent of funds available, an amount equal to the
lesser of the Class B Principal for such Distribution Date and the amount on
deposit in the Principal Account (after giving effect to the transfer pursuant
to subsection 4.12(a)). On the Class B Principal Commencement Date, after the
payment of any principal amounts to the Class A Certificates on such day, and on
each Distribution Date thereafter until the Class B Invested Amount is paid in
full, the Paying Agent shall pay in accordance with Section 5.1 to the Class B
Certificateholders from the Distribution Account such amount deposited into the
Distribution Account on the related Transfer Date.

         (c) On the Transfer Date preceding the Class C Principal Commencement
Date and each Distribution Date thereafter, the Trustee, acting in accordance
with instructions from the Servicer set forth in the Daily Report for such day,
shall withdraw from the Principal Account and deposit in the Distribution
Account an amount equal to the lesser of the Class C Principal for such
Distribution Date and the amount on deposit in the Principal Account (after
giving effect to transfers pursuant to subsections 4.12(a) and (b)). On the
Class C Principal Commencement Date, after the payment of any principal amounts
to the Class B Certificates on such day, and on each Distribution Date
thereafter until the Class C Invested Amount is paid in full, the Paying Agent
shall pay in accordance with Section 5.1 to the Class C Certificateholders from
the Distribution Account such amount deposited into the Distribution Account on
the related Transfer Date.

         (d) On the Transfer Date preceding the Class D Principal Commencement
Date and each Business Day thereafter, the Trustee, acting in accordance with

                                     - 36 -
<PAGE>
 
instructions from the Servicer set forth in the Daily Report for such day, shall
make payments of principal to the Class D Certificateholders in accordance with
subsection 4.9(c)(iv) of the Agreement.

         Any amounts remaining in the Principal Account and allocable to the
Series 1998-2 Certificates, after the Class D Invested Amount has been paid in
full, will be treated as Shared Principal Collections and applied in accordance
with Section 4.3(e) of the Agreement.

         Section 4.13  Investor Charge-Off.

         (a) If, on any Determination Date, the aggregate Investor Default
Amount, if any, for each Business Day in the preceding Monthly Period exceeded
the Series Available Interest Collections applied to the payment thereof
pursuant to subsections 4.9(a)(iv) and (v) of the Agreement and the amount of
Transferor Interest Collections and Excess Interest Collections allocated
thereto pursuant to Section 4.10 of the Agreement, and the amount of Reallocated
Principal Collections applied with respect thereto pursuant to Section 4.14 of
the Agreement, the Class D Invested Amount will be reduced by the amount by
which the remaining aggregate Investor Default Amount exceeds the amount applied
with respect thereto during such preceding Monthly Period (a "Class D Investor
Charge-Off").

         (b) In the event that any such reduction of the Class D Invested Amount
would cause the Class D Invested Amount to be a negative number, the Class D
Invested Amount will be reduced to zero, and the Class C Invested Amount will be
reduced by the amount by which the Class D Invested Amount would have been
reduced below zero, but not more than the aggregate Investor Default Amount for
such Monthly Period (a "Class C Investor Charge-Off").

         (c) In the event that any such reduction of the Class C Invested Amount
would cause the Class C Invested Amount to be a negative number, the Class C
Invested Amount will be reduced to zero, and the Class B Invested Amount will be
reduced by the amount by which the Class C Invested Amount would have been
reduced below zero, but not more than the remaining aggregate Investor Default
Amount for such Monthly Period (a "Class B Investor Charge-Off").

         (d) In the event that any such reduction of the Class B Invested Amount
would cause the Class B Invested Amount to be a negative number, the Class B
Invested Amount will be reduced to zero, and the Class A Invested Amount will be
reduced by the amount by which the Class B Invested Amount would have been
reduced below zero, but not more than the remaining aggregate Investor Default
Amount for such Monthly Period (a "Class A Investor Charge-Off").

                                     - 37 -
<PAGE>
 
         Section 4.14 Reallocated Principal Collections for the Series 1998-2
Certificates.

         (a) On each Business Day, the Servicer will determine the amount equal
to the least of (i) the Class D Invested Amount, (ii) the product of (x)(I)
during the Revolving Period, the Class D Floating Allocation Percentage or (II)
during the Controlled Accumulation Period or Early Amortization Period, the
Class D Fixed/Floating Allocation Percentage and (y) the amount of Principal
Collections with respect to such Business Day and (iii) an amount equal to the
sum of (a) the remaining Class A Required Amount, if any, with respect to the
prior Monthly Period, (b) the remaining Class B Required Amount, if any, with
respect to the prior Monthly Period and (c) the remaining Class C Required
Amount, if any, with respect to the prior Monthly Period (such amount called
"Reallocated Class D Principal Collections") and shall apply Principal
Collections in an amount equal to such amount first to the components of the
Class A Required Amount, then to the components of the Class B Required Amount
and then to the components of the Class C Required Amount in the same priority
as amounts are applied to such components from Series Available Interest
Collections pursuant to subsection 4.9(a).

         (b) On each Business Day, the Servicer will determine the amount equal
to the least of (i) the Class C Invested Amount, (ii) the product of (x)(I)
during the Revolving Period, the Class C Floating Allocation Percentage or (II)
during the Controlled Accumulation Period or Early Amortization Period, the
Class C Fixed/Floating Allocation Percentage and (y) the amount of Principal
Collections for such Business Day and (iii) an amount equal to the sum of (a)
the remaining Class A Required Amount, if any, with respect to the prior Monthly
Period over the amount of Reallocated Class D Principal Collections applied with
respect thereto for such prior Monthly Period and (b) the remaining Class B
Required Amount, if any, with respect to the prior Monthly Period over the
amount of Reallocated Class D Principal Collections applied with respect thereto
for such prior Monthly Period (such amount called "Reallocated Class C Principal
Collections") and shall apply Principal Collections in an amount equal to such
amount first to the remaining components of the Class A Required Amount and then
to the remaining components of the Class B Required Amount in the same priority
as amounts are applied to such components from Series Available Interest
Collections pursuant to subsection 4.9(a).

         (c) On each Business Day, the Servicer will determine the amount equal
to the least of (i) the Class B Invested Amount, (ii) the product of (x)(I)
during the Revolving Period, the Class B Floating Allocation Percentage or (II)
during the Controlled Accumulation Period or Early Amortization Period, the
Class B Fixed/Floating Allocation Percentage and (y) the amount of Principal
Collections for such Business Day and (iii) an amount equal to the excess, if
any, of the remaining Class A Required Amount, if any, with respect to the prior
Monthly Period over the sum of the amount of Reallocated Class D Principal
Collections and Reallocated Class C Principal Collections applied with respect
thereto for the prior Monthly Period (such

                                     - 38 -
<PAGE>
 
amount called "Reallocated Class B Principal Collections") and shall apply
Principal Collections equal to such amount to the remaining components of the
Class A Required Amount in the same priority as amounts are applied to such
components from Series Available Interest Collections pursuant to subsection
4.9(a).

         Section 4.15 Determination of LIBOR.

         (a) On each LIBOR Determination Date, the Trustee shall determine LIBOR
on the basis of the rate for deposits in United States dollars for a period
equal to the relevant Interest Accrual Period which appears on Telerate Page
3750 as of 11:00 a.m., London time, on such date. If such rate does not appear
on Telerate Page 3750, the rate for the LIBOR Determination Date shall be
determined on the basis of the rates at which deposits in United States dollars
are offered by the Reference Banks at approximately 11:00 a.m., London time, on
that day to prime banks in the London interbank market for a period equal to the
relevant Interest Accrual Period. The Trustee shall request the principal London
office of each of the Reference Banks to provide a quotation of its rate. If at
least two such quotations are provided, the rate for that LIBOR Determination
Date shall be the arithmetic mean of the quotations (rounded upward to the
nearest 0.015625%). If fewer than two quotations are provided as requested, the
rate for that LIBOR Determination Date will be the arithmetic mean (rounded
upward to the nearest 0.015625%) of the rates quoted by major banks in New York
City, selected by the Servicer, at approximately 11:00 a.m., New York City time,
on that day for loans in United States dollars to leading European banks for a
period equal to the relevant Interest Accrual Period; provided, however, that if
the Trustee is unable to determine a rate in accordance with one of the
procedures described above, LIBOR shall be LIBOR as determined on the most
recent LIBOR Determination Date.

         (b) The Class A Certificate Rate, the Class B Certificate Rate, the
Class C Certificate Rate and the Class D Certificate Rate applicable to the then
current and the immediately preceding Interest Accrual Periods may be obtained
by any Series 1998-2 Certificateholder by telephoning the Trustee at its
Corporate Trust Office at (612) 667-4959.

         (c) On each LIBOR Determination Date, the Trustee shall send to the
Servicer by facsimile notification of LIBOR for the following Interest Accrual
Period. Following the listing of the Class A Certificates and the Class B
Certificates on the Luxembourg Stock Exchange and for so long as such
Certificates are so listed, the Trustee shall cause the Class A Certificate Rate
and the Class B Certificate Rate as well as the amount of Class A Monthly
Interest and Class B Monthly Interest applicable to an Interest Accrual Period
and the length of such Interest Accrual Period (i) to be published in the
LUXEMBURGER WORT, and (ii) to be provided to the Luxembourg Stock Exchange, in
each case as soon as possible after its determination but in no event later than
the first day of such Interest Accrual Period.


                                     - 39 -
<PAGE>
 
         Section 4.16 Determination of Accumulation Period Length. On the
Distribution Date in November 2001, the Servicer shall determine the
Accumulation Period Length, the Accumulation Period Commencement Date and the
Controlled Accumulation Amount.

         Section 4.17  Pre-Funding Account.

         (a) Establishment of the Pre-Funding Account. The Transferor hereby
directs the Servicer, for the benefit of the Series 1998-2 Certificateholders,
to establish and maintain or cause to be established and maintained in the name
of the Trustee, on behalf of the Series 1998-2 Certificateholders, with the
trust department of a Qualified Institution (which initially shall be Norwest
Bank Minneapolis, National Association) a segregated trust account (the
"Pre-Funding Account"), bearing a designation clearly indicating that the funds
deposited therein are held for the benefit of the Series 1998-2
Certificateholders. The Transferor does hereby transfer, assign, set over and
otherwise convey to the Trust for the benefit of the Series 1998-2
Certificateholders, without recourse, all of its right, title and interest in,
to and under the Pre-Funding Account, any Cash Equivalent on deposit therein and
any proceeds of the foregoing, including the investment earnings. The
Pre-Funding Account shall be under the sole dominion and control of the Trustee
for the benefit of the Series 1998-2 Certificateholders. If, at any time, the
institution holding the Pre-Funding Account ceases to be a Qualified
Institution, the Transferor shall direct the Servicer to establish within 10
Business Days a new Pre-Funding Account meeting the conditions specified above
with a Qualified Institution, transfer any cash and/or any investments to such
new Pre-Funding Account and from the date such new Pre-Funding Account is
established, it shall be the "Pre-Funding Account." In addition, after five
days' notice to the Trustee, the Transferor may direct the Servicer to establish
a new Pre-Funding Account meeting the conditions specified above with a
different Qualified Institution, transfer any cash and/or investments to such
new Pre-Funding Account and from the date such new Pre-Funding Account is
established, it shall be, for the Series 1998-2 Certificates, the "Pre-Funding
Account." Pursuant to the authority granted to the Servicer in subsection 3.1(b)
of the Agreement, the Servicer shall have the power, revocable by the Trustee,
to make withdrawals and payments or to instruct the Trustee to make withdrawals
and payments from the Pre-Funding Account for the purposes of carrying out the
Servicer's or Trustee's duties hereunder.

         (b) Administration of Pre-Funding Account. The Transferor shall on the
Series 1998-2 Issuance Date deposit in the Pre-Funding Account the Initial
Pre-Funded Amount. On the Business Day preceding each Transfer Date, the
Servicer shall withdraw from the Pre-Funding Account and deposit in the
Collection Account all interest and other investment income on the Pre-Funded
Amount. Interest (including reinvested interest) and other investment income on
funds on deposit in the Pre-Funding Account shall not be considered part of the
Pre-Funded Amount for purposes of this Agreement. Funds on deposit in the
Pre-Funding Account shall be withdrawn by the Servicer and paid to the
Transferor to the extent of any increases in the Invested

                                     - 40 -
<PAGE>
 
Amount pursuant to Section 4.18 of the Agreement. Following the occurrence of a
Pay Out Event during the Funding Period, the remaining Pre-Funded Amount will be
applied to make principal payments with respect to the Certificates in
accordance with subsection 4.9(c) of the Agreement. The Servicer shall withdraw
the remaining Pre-Funded Amount, if any, on deposit in the Pre-Funding Account
on the first Business Day of the March 1999 Monthly Period and deposit such
amount into the Excess Funding Account.

         (c) Investment on Funds in Pre-Funding Account. Funds on deposit in the
Pre-Funding Account shall be invested in Cash Equivalents by the Trustee (or, at
the direction of the Trustee, by the Servicer on behalf of the Trustee) at the
direction of the Servicer. Funds on deposit in the Pre-Funding Account on any
Distribution Date, after giving effect to any withdrawals from the Pre-Funding
Account, shall be invested in Cash Equivalents that will mature so that such
funds will be available for withdrawal on or prior to the following Transfer
Date. The proceeds of any such investments shall be invested in Cash Equivalents
that will mature so that such funds will be available for withdrawal on or prior
to the following Transfer Date.

         Section 4.18 Increases in Invested Amount. The Transferor may at any
time during the Funding Period determine to increase the Invested Amount up to
the Full Invested Amount to the extent there are sufficient Principal
Receivables in the Trust to permit such increase in the Invested Amount without
causing a Pay Out Event to occur with respect to any outstanding Series. Upon
determining to increase the Invested Amount pursuant to this Section 4.18, the
Transferor shall deliver to the Servicer, the Trustee and each Rating Agency an
Officers' Certificate specifying the amount of the increase in the Invested
Amount the Transferor has determined to make and certifying that no Pay Out
Event with respect to any outstanding Series will occur as a result of or in
connection with such increase in the Invested Amount. Upon receipt of such
Officer's Certificate by the Trustee, the Class A Invested Amount, the Class B
Invested Amount and the Class C Invested Amount shall be increased pro rata by
the amount specified in such Officers' Certificate, whereupon the Trustee shall
instruct the Servicer to withdraw from the Pre-Funding Account and pay to the
Transferor an amount equal to the amount of such increase in the Class A
Invested Amount, the Class B Invested Amount and the Class C Invested Amount.

         Upon the withdrawal of the remaining Pre-Funded Amount, if any, on
deposit in the Pre-Funding Account on the first Business Day of the March 1999
Monthly Period and the deposit of such amount in the Excess Funding Account, the
Class A Invested Amount, the Class B Invested Amount and the Class C Invested
Amount shall be increased pro rata by such amount.

         SECTION 7. Article V of the Agreement. Article V of the Agreement shall
read in its entirety as follows and shall be applicable only to the Series
1998-2 Certificates:

                                     - 41 -
<PAGE>
 
                                    ARTICLE V

                      DISTRIBUTIONS AND REPORTS TO INVESTOR
                               CERTIFICATEHOLDERS

         Section 5.1  Distributions.

         (a) On each Distribution Date, the Paying Agent shall distribute (in
accordance with the Settlement Statement delivered by the Servicer to the
Trustee and the Paying Agent pursuant to subsection 3.4(c)) to each Class A
Certificateholder of record on the preceding Record Date (other than as provided
in subsection 2.4(e) or in Section 12.3 respecting a final distribution) such
Certificateholder's pro rata share (based on the aggregate Undivided Interests
represented by Class A Certificates held by such Certificateholder) of amounts
on deposit in the Distribution Account as are payable to the Class A
Certificateholders pursuant to Sections 4.11 and 4.12 of the Agreement by check
mailed to each Class A Certificateholder at such Certificateholder's address as
it appears on the Certificate Register or, in the case of Class A
Certificateholders holding Class A Certificates evidencing Undivided Interests
aggregating not less than 80% of the Class A Invested Amount, by wire transfer,
at the expense of such Class A Certificateholder, to an account or accounts
designated by such Class A Certificateholder by written notice given to the
Paying Agent not less than five days prior to the related Distribution Date;
provided, however, that the final payment in retirement of the Class A
Certificates will be made only upon presentation and surrender of the Class A
Certificates at the office or offices specified in the notice of such final
distribution delivered by the Trustee pursuant to Section 12.3.

         (b) On each Distribution Date, the Paying Agent shall distribute (in
accordance with the Settlement Statement delivered by the Servicer to the
Trustee and the Paying Agent pursuant to subsection 3.4(c)) to each Class B
Certificateholder of record on the preceding Record Date (other than as provided
in subsection 2.4(e) or in Section 12.3 respecting a final distribution) such
Certificateholder's pro rata share (based on the aggregate Undivided Interests
represented by Class B Certificates held by such Certificateholder) of amounts
on deposit in the Distribution Account as are payable to the Class B
Certificateholders pursuant to Sections 4.11 and 4.12 of the Agreement by check
mailed to each Class B Certificateholder at such Certificateholder's address as
it appears on the Certificate Register or, in the case of Class B
Certificateholders holding Class B Certificates evidencing Undivided Interest
aggregating not less than 80% of the Class B Invested Amount, by wire transfer,
at the expense of such Class B Certificateholder, to an account or accounts
designated by such Class B Certificateholder by written notice given to the
Paying Agent not less than five days prior to the related Distribution Date;
provided, however, that the final payment in retirement of the Class B
Certificates will be made only upon presentation and surrender of the Class B
Certificates at the office or offices specified in the notice of such final
distribution delivered by the Trustee pursuant to Section 12.3.

                                     - 42 -
<PAGE>
 
         (c) On each Distribution Date, the Paying Agent shall distribute (in
accordance with the Settlement Statement delivered by the Servicer to the
Trustee and the Paying Agent pursuant to subsection 3.4(c)) to each Class C
Certificateholder of record on the preceding Record Date (other than as provided
in subsection 2.4(e) or in Section 12.3 respecting a final distribution) such
Certificateholder's pro rata share (based on the aggregate Undivided Interests
represented by Class C Certificates held by such Certificateholder) of amounts
on deposit in the Distribution Account as are payable to the Class C
Certificateholders pursuant to Sections 4.11 and 4.12 of the Agreement by wire
transfer to each Class C Certificateholder to an account or accounts designated
by such Class C Certificateholder by written notice given to the Paying Agent
not less than five days prior to the related Distribution Date; provided,
however, that the final payment in retirement of the Class C Certificates will
be made only upon presentation and surrender of the Class C Certificates at the
office or offices specified in the notice of such final distribution delivered
by the Trustee pursuant to Section 12.3.

         (d) On each Distribution Date, the Paying Agent shall distribute (in
accordance with the Settlement Statement delivered by the Servicer to the
Trustee and the Paying Agent pursuant to subsection 3.4(c)) to each Class D
Certificateholder of record on the preceding Record Date (other than as provided
in subsection 2.4(e) or in Section 12.3 respecting a final distribution) such
Certificateholder's pro rata share (based on the aggregate Undivided Interests
represented by Class D Certificates held by such Certificateholder) of amounts
on deposit in the Distribution Account as are payable to the Class D
Certificateholders pursuant to Sections 4.11 and 4.12 of the Agreement by wire
transfer to each Class D Certificateholder to an account or accounts designated
by such Class D Certificateholder by written notice given to the Paying Agent
not less than five days prior to the related Distribution Date; provided,
however, that the final payment in retirement of the Class D Certificates will
be made only upon presentation and surrender of the Class D Certificates at the
office or offices specified in the notice of such final distribution delivered
by the Trustee pursuant to Section 12.3.

         Section 5.2 Certificateholders' Statement.

         (a) On the 15th day of each calendar month (or if such day is not a
Business Day the next succeeding Business Day), the Paying Agent shall forward
to each Certificateholder and the Rating Agencies a statement substantially in
the form of Exhibit C prepared by the Servicer and delivered to the Trustee and
the Paying Agent on the preceding Determination Date setting forth the following
information (which, in the case of (i), (ii) and (iii) below, shall be stated on
the basis of an original principal amount of $1,000 per Certificate and, in the
case of (ix) and (x), shall be stated on an aggregate basis and on the basis of
an original principal amount of $1,000 per Certificate):

                  (i) the total amount distributed;

                  (ii) the amount of such distribution allocable to Certificate
         Principal;

                                     - 43 -
<PAGE>
 
                  (iii) the amount of such distribution allocable to Certificate
         Interest;

                  (iv) the amount of Principal Collections processed during the
         related Monthly Period and allocated in respect of the Class A
         Certificates, the Class B Certificates, the Class C Certificates and
         the Class D Certificates, respectively;

                  (v) the amount of Interest Collections processed during the
         related Monthly Period and allocated in respect of the Class A
         Certificates, the Class B Certificates, the Class C Certificates and
         the Class D Certificates, respectively;

                  (vi) the aggregate amount of Principal Receivables, the
         Invested Amount, the Class A Invested Amount, the Class B Invested
         Amount, the Class C Invested Amount, the Class D Invested Amount, the
         Floating Allocation Percentage and, during the Controlled Accumulation
         Period or Early Amortization Period, the ABC Fixed/Floating Allocation
         Percentage, with respect to the Principal Receivables in the Trust as
         of the close of business on the Record Date;

                  (vii) the aggregate outstanding balance of Receivables which
         are current, and those between (i) 30 and 59 days (ii) 60 and 89 days
         and (iii) 90 days or more delinquent, in each case, as of the end of
         the day on the Record Date;

                  (viii) the aggregate Investor Default Amount for the related
         Monthly Period;

                  (ix) the aggregate amount of Class A Investor Charge-Offs,
         Class B Investor Charge-Offs, Class C Investor Charge-Offs and Class D
         Investor Charge-Offs for the preceding Monthly Period;

                  (x) the amount of the Servicing Fee for the preceding Monthly
         Period;

                  (xi) the remaining Invested Amount of the Series 1995-1
         Certificates and the Pre-Allocated Invested Amount, if any, the
         Pre-Funded Amount, if any, and the aggregate amount of funds in the
         Excess Funding Account as of the last day of the Monthly Period
         immediately preceding the Distribution Date;

                  (xii) the Monthly Payment Rate and the average daily aggregate
         Receivables balance (without deducting therefrom the discount portion,
         if any) for the related Monthly Period; and

                  (xiii) each Overconcentration Amount and the Class D
         Incremental Invested Amount.

If the Class A Certificates or the Class B Certificates are listed on the
Luxembourg Stock Exchange, the Trustee will publish or cause to be published
following each

                                     - 44 -
<PAGE>
 
Determination Date in the LUXEMBURGER WORT a notice to the effect that the
reports described above will be available for review at the main office of the
Listing Agent of the Trust in Luxembourg.

         (b) Annual Certificateholders' Tax Statement. On or before March 31 of
each calendar year, beginning with calendar year 1999, the Paying Agent shall
distribute to each Person who at any time during the preceding calendar year was
a Series 1998-2 Certificateholder, a statement prepared by the Servicer
containing the information required to be contained in the regular report to
Series 1998-2 Certificateholders, as set forth in subclauses (i), (ii) and (iii)
above, aggregated for such calendar year or the applicable portion thereof
during which such Person was a Series 1998-2 Certificateholder, together with,
on or before January 31 of each year, beginning in 1999, such other customary
information (consistent with the treatment of the Certificates as debt) as the
Trustee or the Servicer deems necessary or desirable to enable the Series 1998-2
Certificateholders to prepare their tax returns. Such obligations of the Trustee
shall be deemed to have been satisfied to the extent that substantially
comparable information shall be provided by the Trustee pursuant to any
requirements of the Internal Revenue Code as from time to time in effect.

         SECTION 8. Series 1998-2 Pay Out Events. The occurrence of any of the
following events shall, immediately upon the occurrence thereof without notice
or other action on the part of the Trustee or the Series 1998-2
Certificateholders, be deemed to be a Pay Out Event solely with respect to
Series 1998-2:

                  (a) on any Determination Date, the average of the Monthly
         Payment Rates for the three preceding Monthly Periods, where the
         Monthly Payment Rate for a Monthly Period is the percentage obtained by
         dividing the aggregate of the Receivables balance (without deducting
         therefrom any discount portion) collected during such Monthly Period by
         the average daily aggregate Receivables balance (without deducting
         therefrom any discount portion) for such Monthly Period, is less than
         18%;

                  (b) the failure to pay the outstanding principal amount of the
         Class A or Class B Certificates by the Class A Scheduled Payment Date
         or the Class B Scheduled Payment Date, as applicable;

                  (c) the ratio (expressed as a percentage) of (i) the average
         for each month of the net losses on the Receivables (exclusive of the
         Ineligible Receivables) owned by the Trust (i.e., gross losses less
         recoveries on any Receivables (including, without limitation,
         recoveries from collateral security in addition to recoveries from the
         products, recoveries from manufacturers and insurance proceeds)) during
         any three consecutive calendar months to (ii) the average of the
         month-end aggregate balances of such Receivables (without deducting
         therefrom the discount portion) for such three-month period, exceeds 5%
         on an annualized basis;

                                     - 45 -
                                                          
<PAGE>
 
                  (d) the sum of all Cash Equivalents and other amounts on
         deposit in the Excess Funding Account represents more than 50% of the
         sum of the aggregate amount of Principal Receivables (without deducting
         therefrom any discount portion) for each of six or more consecutive
         Determination Dates, after giving effect to all payments made or to be
         made on the Distribution Date next succeeding each such respective
         Determination Date; or

                  (e) if Principal Collections allocable to the Class D
         Certificateholders' Interest have been reallocated in any Monthly
         Period to cover any Required Amounts and have not been reimbursed as of
         the Determination Date in such Monthly Period.

         SECTION 9. Series 1998-2 Termination. The right of the Series 1998-2
Certificateholders to receive payments from the Trust will terminate on the
first Business Day following the Series 1998-2 Termination Date unless such
Series is an Affected Series as specified in subsection 12.1(c) of the Agreement
and the sale contemplated therein has not occurred by such date, in which event
the Series 1998-2 Certificateholders shall remain entitled to receive proceeds
of such sale when such sale occurs.

         SECTION 10.  Legends; Transfer and Exchange; Restrictions on Transfer
of Series 1998-2 Certificates; Tax Treatment.

         (a) Each Class A Certificate, Class B Certificate and Class D
Certificate will bear a legend substantially in the following form:

                  EACH PURCHASER REPRESENTS AND WARRANTS FOR THE BENEFIT OF
         GREEN TREE FLOORPLAN FUNDING CORP. THAT, UNLESS SUCH PURCHASER, AT ITS
         EXPENSE, DELIVERS TO THE TRUSTEE, THE SERVICER AND THE TRANSFEROR AN
         OPINION OF COUNSEL SATISFACTORY TO THEM TO THE EFFECT THAT THE PURCHASE
         OR HOLDING OF A SERIES 1998-2 CERTIFICATE BY SUCH PURCHASER WILL NOT
         RESULT IN THE ASSETS OF THE TRUST BEING DEEMED TO BE "ASSETS OF THE
         BENEFIT PLAN" AND SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF
         ERISA AND THE CODE AND WILL NOT SUBJECT THE TRUSTEE, THE TRANSFEROR OR
         THE SERVICER TO ANY OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE
         POOLING AND SERVICING AGREEMENT, SUCH PURCHASER IS NOT (I) AN EMPLOYEE
         BENEFIT PLAN (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT
         INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA")) THAT IS SUBJECT TO
         THE PROVISIONS OF TITLE I OF ERISA, (II) A PLAN DESCRIBED IN SECTION
         4975(E)(1) OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED, OR (III)
         AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A
         PLAN'S INVESTMENT IN THE ENTITY.

                                     - 46 -
                                                          
<PAGE>
 
         (b) Each Class C Certificate will bear a legend substantially in the
following form:

                  THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER
         THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY
         STATE SECURITIES LAW. THE HOLDER HEREOF, BY PURCHASING THIS
         CERTIFICATE, AGREES THAT THIS CERTIFICATE MAY BE REOFFERED, RESOLD,
         PLEDGED OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES
         ACT AND OTHER APPLICABLE LAWS AND ONLY PURSUANT TO RULE 144A UNDER THE
         SECURITIES ACT TO AN INSTITUTIONAL INVESTOR THAT THE HOLDER REASONABLY
         BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE
         144A ("QIB") PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE
         ACCOUNT OF A QIB, WHOM THE HOLDER HAS INFORMED, IN EACH CASE, THAT THE
         REOFFER, RESALE, PLEDGE OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON
         RULE 144A, OR TO THE TRANSFEROR. EACH CERTIFICATE OWNER BY ACCEPTING A
         BENEFICIAL INTEREST IN THIS CERTIFICATE IS DEEMED TO REPRESENT THAT IT
         IS A QIB PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE
         ACCOUNT OF ANOTHER QIB.

                  THIS CERTIFICATE MAY NOT BE ACQUIRED, SOLD, TRADED OR
         TRANSFERRED, NOR MAY AN INTEREST IN THIS CERTIFICATE BE MARKETED, ON OR
         THROUGH AN "ESTABLISHED SECURITIES MARKET" WITHIN THE MEANING OF
         SECTION 7740(b)(1) OF THE CODE AND ANY PROPOSED, TEMPORARY OR FINAL
         TREASURY REGULATION THEREUNDER, INCLUDING, WITHOUT LIMITATION, AN
         OVER-THE-COUNTER-MARKET OR ANY INTERDEALER QUOTATION SYSTEM THAT
         REGULARLY DISSEMINATES FIRM BUY OR SELL QUOTATIONS.

                  EACH PURCHASER REPRESENTS AND WARRANTS FOR THE BENEFIT OF
         GREEN TREE FLOORPLAN FUNDING CORP. THAT, UNLESS SUCH PURCHASER, AT ITS
         EXPENSE, DELIVERS TO THE TRUSTEE, THE SERVICER AND THE TRANSFEROR AN
         OPINION OF COUNSEL SATISFACTORY TO THEM TO THE EFFECT THAT THE PURCHASE
         OR HOLDING OF A CLASS C CERTIFICATE BY SUCH PURCHASER WILL NOT RESULT
         IN THE ASSETS OF THE TRUST BEING DEEMED TO BE "ASSETS OF THE BENEFIT
         PLAN" AND SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF ERISA AND
         THE CODE AND WILL NOT SUBJECT THE TRUSTEE, THE TRANSFEROR OR THE
         SERVICER TO ANY OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE
         POOLING AND SERVICING AGREEMENT, SUCH PURCHASER EITHER (A) IS NOT (I)
         AN EMPLOYEE BENEFIT PLAN (AS DEFINED IN SECTION 3(3) OF THE EMPLOYEE
         RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"))

                                     - 47 -
                                                          
<PAGE>
 
         THAT IS SUBJECT TO THE PROVISIONS OF TITLE I OF ERISA, (II) A PLAN
         DESCRIBED IN SECTION 4975(E)(1) OF THE INTERNAL REVENUE CODE OF 1986,
         AS AMENDED, OR (III) AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN
         ASSETS BY REASON OF A PLAN'S INVESTMENT IN THE ENTITY, INCLUDING,
         WITHOUT LIMITATION, AN INSURANCE COMPANY GENERAL ACCOUNT OR (B) IS AN
         INSURANCE COMPANY ACTING ON BEHALF OF ITS GENERAL ACCOUNT AND (I) ON
         THE DATE IT ACQUIRES THE CERTIFICATES, LESS THAN 25% OF THE ASSETS OF
         SUCH GENERAL ACCOUNT (AS REASONABLY DETERMINED BY SUCH INSURANCE
         COMPANY) CONSTITUTE PLAN ASSETS FOR PURPOSES OF TITLE I OF ERISA AND
         SECTION 4975 OF THE CODE, AND (II) IF, AFTER THE INITIAL ACQUISITION OF
         THE CERTIFICATES, AT ANY TIME DURING ANY CALENDAR QUARTER 25% OR MORE
         OF THE ASSETS OF SUCH GENERAL ACCOUNT (AS REASONABLY DETERMINED BY SUCH
         INSURANCE COMPANY NO LESS FREQUENTLY THAN EACH CALENDAR QUARTER)
         CONSTITUTE PLAN ASSETS FOR PURPOSES OF TITLE I OF ERISA OR SECTION 4975
         OF THE CODE AND NO EXEMPTION OR EXCEPTION FROM THE PROHIBITED
         TRANSACTION RULES APPLIES TO THE CONTINUED HOLDING OF THE CERTIFICATES
         UNDER SECTION 401(c) OF ERISA AND THE FINAL REGULATIONS THEREUNDER OR
         UNDER AN EXEMPTION OR REGULATION ISSUED BY THE UNITED STATES DEPARTMENT
         OF LABOR UNDER ERISA, THEN SUCH INSURANCE COMPANY AGREES TO DISPOSE OF
         ALL OF THE CERTIFICATES THEN HELD IN ITS GENERAL ACCOUNT BY THE END OF
         THE NEXT FOLLOWING CALENDAR QUARTER.

         (c) Each Class D Certificate will bear a legend substantially in the
following form:

                  THIS CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES
         ACT OR ANY APPLICABLE STATE SECURITIES LAW OF ANY STATE AND MAY NOT BE
         OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED UNLESS REGISTERED
         PURSUANT TO OR EXEMPT FROM REGISTRATION UNDER THE SECURITIES ACT AND
         ANY OTHER APPLICABLE SECURITIES LAW. GREEN TREE FLOORPLAN FUNDING CORP.
         SHALL BE PROHIBITED FROM TRANSFERRING ANY INTEREST IN OR PORTION OF
         THIS CERTIFICATE UNLESS, PRIOR TO SUCH TRANSFER, IT SHALL HAVE
         DELIVERED TO THE TRUSTEE AN OPINION OF COUNSEL TO THE EFFECT THAT SUCH
         PROPOSED TRANSFER WILL NOT ADVERSELY AFFECT THE FEDERAL OR MINNESOTA
         INCOME TAX CHARACTERIZATION OF ANY OUTSTANDING SERIES OF INVESTOR
         CERTIFICATES OR THE TAXABILITY (OR TAX CHARACTERIZATION) OF THE TRUST
         UNDER FEDERAL OR MINNESOTA INCOME TAX LAWS. IN NO EVENT SHALL THE
         TRANSFEROR BE PERMITTED TO TRANSFER ANY INTEREST IN OR PORTION OF THIS
         CERTIFICATE IF, AFTER GIVING

                                     - 48 -
                                                          
<PAGE>
 
         EFFECT TO SUCH PROPOSED TRANSFER, TAKING INTO ACCOUNT THE CERTIFICATES
         WHOSE TRANSFER IS PROPOSED, MORE THAN 20% (BY INVESTED AMOUNT AND BY
         VALUE) OF THE OUTSTANDING CERTIFICATES ISSUED BY THE TRUST WITH RESPECT
         TO WHICH NO OPINION OF COUNSEL WAS ISSUED THAT THE APPLICABLE CLASS
         WOULD BE TREATED AS DEBT FOR FEDERAL INCOME TAX PURPOSES (INCLUDING THE
         EXCHANGEABLE TRANSFEROR CERTIFICATE AND EACH TRANSFEROR RETAINED CLASS)
         WOULD NOT BE BENEFICIALLY OWNED BY GREEN TREE FLOORPLAN FUNDING CORP.

         (d) Green Tree Floorplan Funding Corp. shall be prohibited from
transferring any interest in or portion of the Class D Certificates unless,
prior to such transfer, it shall have delivered to the Trustee an Opinion of
Counsel to the effect that such proposed transfer will not adversely affect the
Federal or Minnesota income tax characterization of any outstanding Series of
Investor Certificates or the taxability (or tax characterization) of the Trust
under Federal or Minnesota income tax laws. In no event shall the Transferor be
permitted to transfer any interest in or portion of the Class D Certificates if,
after giving effect to such proposed transfer, taking into account the
certificates whose transfer is proposed, more than 20% (by Invested Amount and
by value) of the outstanding certificates issued by the Trust with respect to
which no Opinion of Counsel was issued that the applicable class would be
treated as debt for federal income tax purposes (including the Exchangeable
Transferor Certificate and each Transferor Retained Class) would not be
beneficially owned by Green Tree Floorplan Funding Corp. In no event shall any
interest in or portion of the Class D Certificates be transferred to Green Tree.
As a condition to transfer of an interest in or portion of the Class D
Certificates, the transferee shall be required to agree not to institute
against, or join any other Person in instituting against, the Trust, any
bankruptcy, reorganization, arrangement, insolvency or liquidation proceeding,
or other proceeding under any federal or state bankruptcy or similar law, for
one year and one day after all Investor Certificates are paid in full. The
Transferor shall provide prompt written notice to the Rating Agencies of any
such transfer.

         (e) No transfer of a Class A Certificate, Class B Certificate or Class
D Certificate will be permitted to be made to a Benefit Plan unless such Benefit
Plan, at its expense, delivers to the Trustee, the Servicer and the Transferor
an opinion of counsel satisfactory to them to the effect that the purchase or
holding of a Class A Certificate, Class B Certificate or Class D Certificate by
such Benefit Plan will not result in the assets of the Trust being deemed to be
"assets of the Benefit Plan" and subject to the prohibited transaction
provisions of ERISA and the Code and will not subject the Trustee, the
Transferor or the Servicer to any obligation in addition to those undertaken in
the Agreement. Unless such opinion is delivered, each person acquiring a Class A
Certificate, Class B Certificate or Class D Certificate or the beneficial
ownership of a Class A Certificate, Class B Certificate or Class D Certificate
will be deemed to represent to the Trustee, the Transferor and the Servicer that
it is not (i) an employee benefit plan (as defined in Section 3(3) of ERISA)
that is subject to the provisions of Title I of ERISA,

                                     - 49 -
                                                          
<PAGE>
 
(ii) a plan described in Section 4975(e)(1) of the Code, or (iii) any entity
whose underlying assets include plan assets by reason of a plan's investment in
the entity.

         (f) The Transferor, the Trustee, the Servicer and each
Certificateholder each agrees that it will not make the election provided in
Treasury Regulation ss. 301.7701-3(c) to have the Trust classified as an
association taxable as a corporation.

         SECTION 11. Additional Restrictions on Transfers of Class C
Certificates; Withholding Requirements; Tax Treatment.

         (a) No Class C Certificate or any interest therein may be sold
(including in the initial offering), conveyed, assigned, hypothecated, pledged,
participated, or otherwise transferred (each, a "Transfer") except in accordance
with this Section 11. Any Transfer of a Class C Certificate otherwise permitted
by this Section 11 will be permitted only if it consists of a PRO RATA
percentage interest in all payments made with respect to such Holder's Class C
Certificate and no Transfers of partial interests in a Class C Certificate shall
be permitted. No Class C Certificate or any interest therein may be Transferred
to any Person (each, an "Assignee"), unless the Assignee shall have executed and
delivered the certification referred to in subsection 11(e) below and each of
the Transferor and the Servicer shall have granted its prior consent thereto.
Such consent shall be granted (assuming that all other conditions specified in
this Section 11 to such Transfer are satisfied) unless the Transferor determines
in its sole and absolute discretion that such Transfer would create a risk that
the Trust would be classified for federal or any applicable state tax purposes
as an association or publicly traded partnership taxable as a corporation;
provided, that any attempted Transfer that would cause the number of Targeted
Holders to exceed ninety-nine shall be void; and provided, further, that there
shall not at any time be more than 5 Class C Certificateholders or such other
number as may be consented to by the Transferor, which consent may be withheld
in its sole and absolute discretion.

         (b) Each initial purchaser of a Class C Certificate or any interest
therein and any Assignee thereof shall certify to the Transferor, the Servicer,
and the Trustee that it is either (A)(i) a citizen or resident of the U.S., (ii)
a corporation, partnership or other entity organized in or under the laws of the
U.S. or any political subdivision thereof which, if such entity is a tax-exempt
entity, recognizes that payments with respect to the Class C Certificates may
constitute unrelated business taxable income or (iii) a person not described in
(i) or (ii) whose ownership of the Class C Certificates is effectively connected
with the conduct of a trade or business within the United States within the
meaning of the Code) and whose ownership of any interest in a Class C
Certificate will not result in any withholding obligation with respect to any
payments with respect to the Class C Certificates by any person or (B) an estate
or trust the income of which is includible in gross income for U.S. federal
income tax purposes. Each initial purchaser of a Class C Certificate also shall
agree that (A) if it is a person described in clause (A)(i) or (A)(ii) above, it
will furnish to the person from whom it is acquiring a Class C Certificate, the
Servicer and the Trustee, a properly executed U.S. Internal Revenue

                                     - 50 -
                                                          
<PAGE>
 
Service Form W-9 (and will agree to furnish a new Form W-9, or any successor
applicable form, upon the expiration or obsolescence of any previously delivered
form) or (b) if it is a person described in clause (A)(iii) above, it will
furnish to the person from whom it is acquiring a Class C Certificate, the
Servicer and the Trustee, a properly executed U.S. Internal Revenue Service Form
4224 (and will agree to furnish a new Form 4224, or any successor applicable
form, upon the expiration or obsolescence of any previously delivered form and
comparable statements in accordance with applicable U.S. laws), and, in each
case, such other certifications, representations or opinions of counsel as may
be requested by the Transferor, the Servicer or the Trustee.

         (c) Each initial purchaser of a Class C Certificate or any interest
therein and any Assignee thereof shall further certify to the Transferor, the
Servicer and the Trustee that it has neither acquired nor will it sell, trade or
transfer any interest in a Class C Certificate or cause an interest in a Class C
Certificate to be marketed on or through an "established securities market"
within the meaning of Section 7704(b)(1) of the Code and any treasury regulation
thereunder, including, without limitation, an over-the-counter-market or an
interdealer quotation system that regularly disseminates firm buy or sell
quotations. In addition, each initial purchaser of a Class C Certificate or any
interest therein and any Assignee shall certify, prior to any delivery or
Transfer to it of a Class C Certificate that it is not and will not become
(unless otherwise consented to by the Transferor in its sole discretion), for so
long as it holds an interest in a Class C Certificate, a partnership, Subchapter
S corporation or grantor trust for U.S. federal income tax purposes. If an
initial purchaser of an interest in a Class C Certificate or an Assignee cannot
make the certification described in the preceding sentence, the Transferor may,
in its sole discretion, prohibit a Transfer to such entity; provided, however,
that if the Transferor agrees to permit such a Transfer, the Transferor, the
Servicer or the Trustee may require additional certifications in order to
prevent the Trust from being treated as a publicly traded partnership. Each
initial purchaser of an interest in a Class C Certificate and Assignee
acknowledges that the Opinion of Counsel to the effect that the Trust will not
be treated as a publicly traded partnership taxable as a corporation is
dependent in part on the accuracy of the certifications described in this
subsection 11(c).

         (d) Upon surrender for registration of transfer of a Class C
Certificate at the office of the Transfer Agent and Registrar, accompanied by a
letter of representations and certification from the prospective Class C
Certificateholder substantially in the form attached as Exhibit F and by a
written instrument of transfer in the form approved by the Transferor and the
Trustee (it being understood that, until notice to the contrary is given to
Class C Certificateholders, the Transferor and the Trustee shall each be deemed
to have approved the form of instrument of transfer, if any, printed on any
definitive Class C Certificate), executed by the registered owner, in person or
by such Class C Certificateholder's attorney thereunto duly authorized in
writing, such Class C Certificate shall be transferred upon the register, and
the Transferor shall execute, and the Trustee shall authenticate and deliver, in
the name of the designated transferee one or more new registered Class C
Certificates of any authorized denominations and of a

                                     - 51 -
                                                          
<PAGE>
 
like aggregate principal amount and tenor. Transfers and exchanges of Class C
Certificates shall be subject to such restrictions as shall be set forth in this
Series 1998-2 Supplement and the text of the Class C Certificates and such
reasonable regulations as may be prescribed by the Transferor. Successive
registrations and registrations of transfers as aforesaid may be made from time
to time as desired, and each such registration shall be noted on the register.

         (e) No Class C Certificate or any interest therein may be Transferred
(including in the initial offering) to (a) an "employee benefit plan" (as
defined in Section 3(3) of ERISA), including governmental plans and church
plans, (b) any "plan" (as defined in Section 4975(e)(1) of the Code) including
individual retirement accounts and Keogh plans, or (c) any other entity whose
underlying assets include "plan assets" (within the meaning of Department of
Labor ("DOL") Regulation Section 2510.3-101, 29 C.F.R. ss. 2510.3-101 or
otherwise under ERISA) by reason of a plan's investment in the entity,
including, without limitation, an insurance company general account; provided,
however, that a Class C Certificate or an interest therein may be Transferred to
an insurance company acting on behalf of its general account if (i) on the date
such insurance company acquires the Class C Certificates, less than 25% of the
assets of such general account (as reasonably determined by such insurance
company) constitute "plan assets" for purposes of Title I of ERISA and Section
4975 of the Code, and (ii) such insurance company agrees that if, after the
initial acquisition of the Class C Certificates, at any time during any calendar
quarter 25% or more of the assets of such general account (as reasonably
determined by such insurance company no less frequently than each calendar
quarter) constitute "plan assets" for purposes of Title I of ERISA or Section
4975 of the Code and no exemption or exception from the prohibited transaction
rules applies to the continued holding of the Class C Certificates under Section
401(c) of ERISA and the final regulations thereunder or under an exemption or
regulation issued by the DOL under ERISA, then such insurance company will
dispose of all of the Class C Certificates then held in its general account by
the end of the next following calendar quarter; and provided, further, that the
Assignee shall have executed and delivered the certification referred to in
subsection 11(d) above and each of the Transferor and the Servicer shall have
granted its prior written consent thereto.

         (f) Notwithstanding any other provision of the Agreement, the Trustee
and any Paying Agent shall comply with all Federal withholding requirements with
respect to payments to the Class C Certificateholders of interest, original
issue discount, or other amounts that the Trustee, any Paying Agent, the
Servicer or the Transferor reasonably believes are applicable under the Code.
The consent of the Class C Certificateholders shall not be required for any such
withholding. In the event the Trustee or the Paying Agent withholds any amount
from payments made to any Class C Certificateholder pursuant to federal
withholding requirements, the Trustee or the Paying Agent shall indicate to such
Class C Certificateholder the amount withheld and all such amounts shall be
deemed to have been paid to such Class C Certificateholders and the Class C
Certificateholders shall have no claim therefor.


                                     - 52 -
                                                          
<PAGE>
 
         (g) As described in Section 3.7 of the Agreement, it is the intention
of the parties hereto that the Class C Certificates be treated for tax purposes
as indebtedness. In the event that the Class C Certificates are not so treated,
it is the intention of the parties that the Class C Certificates to treated as
an interest in a partnership that owns the Receivables. In the event that the
Class C Certificates are treated as an interest in a partnership, it is the
intention of the parties that interest payable on the Class C Certificates be
treated as guaranteed payment and, if for any reason it is not so treated, that
the holders of the Class C Certificates be specially allocated gross interest
income equal to the interest accrued during each Interest Accrual Period on the
Class C Certificates.

         SECTION 12.  Ratification of Agreement.

         (a) As supplemented by this Series Supplement, the Agreement is in all
respects ratified and confirmed and the Agreement as so supplemented by this
Series Supplement shall be read, taken, and construed as one and the same
instrument.

         (b) For so long as any of the Class C Certificates are outstanding,
each of the Transferor, the Servicer and the Trustee agree to cooperate with
each other to provide to any Class C Certificateholders and to any prospective
purchaser of Class C Certificates designated by such a Class C Certificateholder
upon the request of such Class C Certificateholder or prospective purchaser, any
information required to be provided to such holder or prospective purchaser to
satisfy the condition set forth in Rule 144A(d)(4) under the Securities Act.

         SECTION 13. Counterparts. This Series Supplement may be executed in any
number of counterparts, each of which so executed shall be deemed to be an
original, but all of such counterparts shall together constitute but one and the
same instrument.

         SECTION 14. GOVERNING LAW. THIS SERIES SUPPLEMENT SHALL BE CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF MINNESOTA WITHOUT REFERENCE TO ITS
CONFLICT OF LAW PROVISIONS, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE
PARTIES HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

         SECTION 15. Instructions in Writing. All instructions or other
communications given by the Servicer or any other person to the Trustee pursuant
to this Series Supplement shall be in writing, and, with respect to the
Servicer, may be included in a Daily Report or Settlement Statement.

                                     - 53 -
                                                          
<PAGE>
 
         IN WITNESS WHEREOF, the Transferor, the Servicer and the Trustee have
caused this Series 1998-2 Supplement to be duly executed by their respective
officers as of the day and year first above written.

                                  GREEN TREE FLOORPLAN
                                      FUNDING CORP., Transferor


                                  By: /s/ Phyllis A. Knight
                                      ------------------------------------
                                      Name:  Phyllis A. Knight
                                      Title: Senior Vice President and Treasurer



                                  GREEN TREE FINANCIAL
                                      CORPORATION, Servicer


                                  By: /s/ Phyllis A. Knight
                                      ------------------------------------
                                      Name:  Phyllis A. Knight
                                      Title: Senior Vice President and
                                             Treasurer



                                  NORWEST BANK MINNESOTA, NATIONAL
                                  ASSOCIATION, Trustee


                                  By: /s/ Stephen P. Seitz
                                      ------------------------------------
                                      Name:  Stephen P. Seitz
                                      Title: Assistant Vice President



                                     - 54 -
                                                   
<PAGE>
 
                                                                       Exhibit A

                      FORM OF CLASS A INVESTOR CERTIFICATE

                  UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
         REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION
         ("DTC"), TO THE TRUSTEE 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.

                  EACH PURCHASER REPRESENTS AND WARRANTS FOR THE BENEFIT OF
         GREEN TREE FLOORPLAN FUNDING CORP. THAT UNLESS SUCH PURCHASER, AT ITS
         EXPENSE, DELIVERS TO THE TRUSTEE, THE SERVICER AND THE TRANSFEROR AN
         OPINION OF COUNSEL SATISFACTORY TO THEM TO THE EFFECT THAT THE PURCHASE
         OR HOLDING OF THIS CERTIFICATE BY SUCH PURCHASER WILL NOT RESULT IN THE
         ASSETS OF THE TRUST BEING DEEMED TO BE "ASSETS OF THE BENEFIT PLAN" OR
         SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF ERISA AND THE CODE
         AND WILL NOT SUBJECT THE TRUSTEE, THE TRANSFEROR OR THE SERVICER TO ANY
         OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE POOLING AND SERVICING
         AGREEMENT, SUCH PURCHASER IS NOT (I) AN EMPLOYEE BENEFIT PLAN (AS
         DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT
         OF 1974, AS AMENDED ("ERISA")) THAT IS SUBJECT TO THE PROVISIONS OF
         TITLE I OF ERISA, (II) A PLAN DESCRIBED IN SECTION 4975(E)(1) OF THE
         INTERNAL REVENUE CODE OF 1986, AS AMENDED, OR (III) AN ENTITY WHOSE
         UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A PLAN'S INVESTMENT
         IN THE ENTITY.

No. R-1                                                             $440,000,000
CUSIP NO. 393510 AH5

                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST
                    FLOATING RATE FLOORPLAN RECEIVABLE TRUST
                       CERTIFICATE, SERIES 1998-2, CLASS A

         Evidencing an undivided interest in a trust, the corpus of which
consists of receivables generated from time to time in the ordinary course of
business from the

                                       A-1
<PAGE>
 
portfolio of revolving financing arrangements (the "Accounts") of Green Tree
Financial Corporation ("Green Tree" or the "Servicer") and other assets and
interests constituting the Trust under the Agreement described below.

         This certificate (a "Certificate") does not represent an interest in,
or obligation of, Green Tree Floorplan Funding Corp., Green Tree or any
affiliate of either of them.

         This certifies that CEDE & Co. (the "Certificateholder") is the
registered owner of a fractional undivided interest in the Green Tree Floorplan
Receivables Master Trust (the "Trust") issued pursuant to the Pooling and
Servicing Agreement, dated as of December 1, 1995 (the "Pooling and Servicing
Agreement"; such term to include any amendment thereto) among Green Tree
Floorplan Funding Corp., as Transferor (the "Transferor"), Green Tree, as
Servicer, and Norwest Bank Minnesota, National Association, as Trustee (the
"Trustee"), and the Series 1998-2 Supplement, dated as of August 1, 1998 (the
"Series 1998-2 Supplement"), among the Transferor, Green Tree as Servicer and
the Trustee. The Pooling and Servicing Agreement, as supplemented by the Series
1998-2 Supplement, is herein referred to as the "Agreement"). The corpus of the
Trust consists of all of the Transferor's right, title and interest in, to and
under the Trust Property (as defined in the Agreement).

         This Certificate does not purport to summarize the Agreement and
reference is made to that Agreement for information with respect to the
interests, rights, benefits, obligations, proceeds, and duties evidenced hereby
and the rights, duties and obligations of the Trustee. To the extent not defined
herein, the capitalized terms used herein have the meanings ascribed to them in
the Agreement. This Certificate is one of a class of Certificates entitled
"Green Tree Floorplan Receivables Master Trust Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class A" (the "Class A
Certificates"), each of which represents a fractional undivided interest in the
Trust, and is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement, as amended from time to time,
the Certificateholder by virtue of the acceptance hereof assents and by which
the Certificateholder is bound.

         The Transferor has structured the Agreement, the Class A Certificates,
the Green Tree Floorplan Receivables Master Trust Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class B (the "Class B
Certificates" and collectively with the Class A Certificates the "Offered
Certificates") and the Green Tree Floorplan Receivables Master Trust Floating
Rate Floorplan Receivable Trust Certificates, Series 1998-2, Class C (the "Class
C Certificates") with the intention that the Offered Certificates will qualify
under applicable tax law as indebtedness, and both the Transferor and each
holder of a Class A Certificate (a "Class A Certificateholder") or any interest
therein by acceptance of its Certificate or any interest therein, agrees to
treat the Class A Certificates for purposes of federal, state and local income
or franchise taxes and any other tax imposed on or measured by income, as
indebtedness.


                                       A-2
<PAGE>
 
         Subject to the terms of the Agreement, no principal will be payable to
the Class A Certificateholders until the Class A Scheduled Payment Date in the
Controlled Accumulation Period. No principal will be payable to the Class B
Certificateholders, Class C Certificateholders or Class D Certificateholders
until all principal payments have been made to the Class A Certificateholders.

         Each Class A Certificate represents the right to receive the lesser of
(i) interest at the rate of .055% per annum above LIBOR determined on September
10, 1998 for the period from September 14, 1998 up to but excluding October 13,
1998, and at a rate equal to .055% per annum above LIBOR determined on the
related LIBOR Determination Date for each Interest Accrual Period thereafter or
(ii) the applicable Net Receivables Rate, (such rate, as in effect from time to
time, the "Class A Certificate Rate"). Interest on the Class A Certificates will
accrue from the Series 1998-2 Issuance Date and will be distributed on October
13, 1998, and on the 13th day of each month thereafter, or if such day is not a
Business Day, on the next succeeding Business Day (each, a "Distribution Date"),
in an amount equal to the product of (a) the actual number of days in the
related Interest Accrual Period divided by 360, (b) the Class A Certificate Rate
and (c) the outstanding principal balance of the Class A Certificates at the
close of Business on the first day of such Interest Accrual Period (or in the
case of the first Distribution Date, the Class A Initial Invested Amount).

         On the earlier of (i) the April 2002 Distribution Date or (ii) the
first Distribution Date following the occurrence of a Pay Out Event, interest
and principal will be distributed to the Class A Certificateholders monthly on
each Distribution Date prior to the Series 1998-2 Termination Date. Interest for
any Distribution Date will include accrued interest at the Class A Certificate
Rate from and including the preceding Distribution Date or, in the case of the
first Distribution Date, from and including the Series 1998-2 Issuance Date, to
but excluding such Distribution Date. Interest for any Distribution Date due but
not paid on any Distribution Date will be due on the next succeeding
Distribution Date together with, to the extent permitted by applicable law,
additional interest on such amount at the Class A Certificate Rate.

         "Class A Invested Amount" means an amount equal to (a) the initial
principal balance of the Class A Certificates less the Class A Percentage of the
initial deposit to the Pre-Funding Account plus the Class A Percentage of any
withdrawals from the Pre-Funding Account pursuant to Section 4.18 (i) during the
Funding Period, in connection with the addition of Receivables to the Trust or
payment of principal to the Series 1995- 1 Certificates or (ii) at the end of
the Funding Period, for deposit into the Excess Funding Account, minus (b) the
aggregate amount of principal payments (except principal payments made from the
Pre-Funding Account) made to Class A Certificateholders prior to such date,
minus (c) the aggregate amount of Class A Investor Charge-Offs for all prior
Determination Dates, and plus (d) the aggregate amount allocated and available
on all prior Business Days pursuant to subsection 4.9(a)(vi) (including amounts
applied pursuant to such subsection but funded pursuant

                                       A-3
<PAGE>
 
to Section 4.10(a) and (b) and Section 4.14(a), (b) and (c)) for the purpose of
reimbursing amounts deducted pursuant to the foregoing clause (c).

         Subject to the Agreement, payments of principal are limited to the
unpaid Class A Invested Amount of the Class A Certificates, which may be less
than the unpaid balance of the Class A Certificates pursuant to the terms of the
Agreement. All principal of and interest on the Class A Certificates is due and
payable no later than the Distribution Date in April 2004 (the "Series 1998-2
Termination Date"). After the Series 1998-2 Termination Date neither the Trust
nor the Transferor will have any further obligation to distribute principal or
interest on the Class A Certificates. In the event that the Class A Invested
Amount is greater than zero on the Series 1998-2 Termination Date, the Trustee
will sell or cause to be sold, to the extent necessary, an amount of interests
in the Receivables or certain of the Receivables up to 110% of the Class A
Invested Amount, the Class B Invested Amount, the Class C Invested Amount and
the Class D Invested Amount at the close of business on such date (but not more
than the total amount of Receivables allocable to the Investor Certificates),
and shall pay the proceeds to the Class A Certificateholders pro rata in final
payment of the Class A Certificates, then to the Class B Certificateholders pro
rata in final payment of the Class B Certificates, then to the Class C
Certificateholders pro rata in final payment of the Class C Certificates and
finally to the Class D Certificateholders pro rata in final payment of the Class
D Certificates.

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

                                       A-4
<PAGE>
 
         IN WITNESS WHEREOF, the Transferor has caused this Certificate to be
duly executed.

                                  GREEN TREE FLOORPLAN
                                    FUNDING CORP., Transferor


                                  By:_____________________________
                                       Name:
                                       Title:

Dated: September 14, 1998

                          CERTIFICATE OF AUTHENTICATION

         This is one of the Class A Certificates referred to in the
within-mentioned Pooling and Servicing Agreement.

                                  NORWEST BANK MINNESOTA,
                                  NATIONAL ASSOCIATION, Trustee



                                  By:_____________________________
                                       Name:
                                       Title:




                                       A-5
<PAGE>
 
                                                                       Exhibit B

                      FORM OF CLASS B INVESTOR CERTIFICATE

                  UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
         REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION
         ("DTC"), TO THE TRUSTEE 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.

                  EACH PURCHASER REPRESENTS AND WARRANTS FOR THE BENEFIT OF
         GREEN TREE FLOORPLAN FUNDING CORP. THAT UNLESS SUCH PURCHASER, AT ITS
         EXPENSE, DELIVERS TO THE TRUSTEE, THE SERVICER AND THE TRANSFEROR AN
         OPINION OF COUNSEL SATISFACTORY TO THEM TO THE EFFECT THAT THE PURCHASE
         OR HOLDING OF THIS CERTIFICATE BY SUCH PURCHASER WILL NOT RESULT IN THE
         ASSETS OF THE TRUST BEING DEEMED TO BE "ASSETS OF THE BENEFIT PLAN" OR
         SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF ERISA AND THE CODE
         AND WILL NOT SUBJECT THE TRUSTEE, THE TRANSFEROR OR THE SERVICER TO ANY
         OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE POOLING AND SERVICING
         AGREEMENT, SUCH PURCHASER IS NOT (I) AN EMPLOYEE BENEFIT PLAN (AS
         DEFINED IN SECTION 3(3) OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT
         OF 1974, AS AMENDED ("ERISA")) THAT IS SUBJECT TO THE PROVISIONS OF
         TITLE I OF ERISA, (II) A PLAN DESCRIBED IN SECTION 4975(E)(1) OF THE
         INTERNAL REVENUE CODE OF 1986, AS AMENDED, OR (III) AN ENTITY WHOSE
         UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF A PLAN'S INVESTMENT
         IN THE ENTITY.



                                       B-1
<PAGE>
 
No. R-1                                                              $22,500,000
CUSIP NO. 393510 AJ1

                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST
                    FLOATING RATE FLOORPLAN RECEIVABLE TRUST
                       CERTIFICATE, SERIES 1998-2, CLASS B

         Evidencing an undivided interest in a trust, the corpus of which
consists of receivables generated from time to time in the ordinary course of
business from the portfolio of revolving financing arrangements (the "Accounts")
of Green Tree Financial Corporation ("Green Tree" or the "Servicer") and other
assets and interests constituting the Trust under the Agreement described below.

         This certificate (a "Certificate") does not represent an interest in,
or obligation of, Green Tree Floorplan Funding Corp., Green Tree or any
affiliate of either of them.

         This certifies that CEDE & CO. (the "Certificateholder") is the
registered owner of a fractional undivided interest in the Green Tree Floorplan
Receivables Master Trust (the "Trust") issued pursuant to the Pooling and
Servicing Agreement, dated as of December 1, 1995 (the "Pooling and Servicing
Agreement"; such term to include any amendment thereto) among Green Tree
Floorplan Funding Corp., as Transferor (the "Transferor"), Green Tree, as
Servicer, and Norwest Bank Minnesota, National Association, as Trustee (the
"Trustee"), and the Series 1998-2 Supplement, dated as of August 1, 1998 (the
"Series 1998-2 Supplement"), among the Transferor, Green Tree, as Servicer, and
the Trustee. The Pooling and Servicing Agreement, as supplemented by the Series
1998-2 Supplement, is herein referred to as the "Agreement." The corpus of the
Trust consists of all of the Transferor's right, title and interest in, to and
under the Trust Property (as defined in the Agreement).

         This Certificate does not purport to summarize the Agreement and
reference is made to that Agreement for information with respect to the
interests, rights, benefits, obligations, proceeds, and duties evidenced hereby
and the rights, duties and obligations of the Trustee. To the extent not defined
herein, the capitalized terms used herein have the meanings ascribed to them in
the Agreement. This Certificate is one of a class of Certificates entitled
"Green Tree Floorplan Receivables Master Trust Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class B" (the "Class B
Certificates"), each of which represents a fractional undivided interest in the
Trust, and is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement, as amended from time to time,
the Certificateholder by virtue of the acceptance hereof assents and by which
the Certificateholder is bound.

         The Transferor has structured the Agreement, the Class B Certificates,
the Green Tree Floorplan Receivables Master Trust Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class A (the "Class A
Certificates" and collectively with the Class B Certificates the "Offered
Certificates") and the Green Tree Floorplan Receivables Master Trust Floating
Rate Floorplan Receivable Trust Certificates, Series 1998-2,

                                       B-2
                                        
<PAGE>
 
Class C (the "Class C Certificates") with the intention that the Offered
Certificates will qualify under applicable tax law as indebtedness, and both the
Transferor and each holder of a Class B Certificate (a "Class B
Certificateholder") or any interest therein by acceptance of its Certificate or
any interest therein, agrees to treat the Class B Certificates for purposes of
federal, state and local income or franchise taxes and any other tax imposed on
or measured by income, as indebtedness.

         Subject to the terms of the Agreement, no principal will be payable to
the Class B Certificateholders until the date on which an amount equal to the
Class A Invested Amount has been deposited in the Principal Account. No
principal will be payable to the Class B Certificateholders until all principal
payments have been made to the Class A Certificateholders.

         Each Class B Certificate represents the right to receive the lesser of
(i) interest at the rate of .225% per annum above LIBOR determined on September
10, 1998 for the period from September 14, 1998 up to be excluding October 13,
1998, and at a rate equal to .225% per annum above LIBOR determined on the
related LIBOR Determination Date for each Interest Accrual Period thereafter or
(ii) the applicable Net Receivables Rate (such rate, as in effect from time to
time, the "Class B Certificate Rate"). Interest on the Class B Certificates will
accrue from the Series 1998-2 Issuance Date and will be distributed on October
13, 1998, and on the 13th day of each month thereafter, or if such day is not a
Business Day, on the next succeeding Business Day (each, a "Distribution Date"),
in an amount equal to the product of (a) the actual number of days in the
related Interest Accrual Period divided by 360, (b) the Class B Certificate Rate
and (c) the outstanding principal balance of the Class B Certificates at the
close of business on the first day of such Interest Accrual Period.

         On the earlier of (a) the May 2002 Distribution Date or (b) the first
Distribution Date following the occurrence of a Pay Out Event, interest and
principal will be distributed to the Class B Certificateholders monthly on each
Distribution Date prior to the Series 1998-2 Termination Date. Interest for any
Distribution Date will include accrued interest at the Class B Certificate Rate
from and including the preceding Distribution Date or, in the case of the first
Distribution Date from and including the Series 1998-2 Issuance Date, to but
excluding such Distribution Date. Interest for any Distribution Date due but not
paid on any Distribution Date will be due on the next succeeding Distribution
Date together with, to the extent permitted by applicable law, additional
interest on such amount at the Class B Certificate Rate.

                  "Class B Invested Amount" for any date means an amount equal
to (a) the initial principal balance of the Class B Certificates less the Class
B Percentage of the initial deposit to the Pre-Funding Account plus the Class B
Percentage of any withdrawals from the Pre-Funding Account pursuant to Section
4.18 (i) during the Funding Period, in connection with the addition of
Receivables to the Trust or payment of principal to the Series 1995-1
Certificates or (ii) at the end of the Funding Period, for deposit into the
Excess Funding Account minus (b) the aggregate amount of principal

                                       B-3
                                        
<PAGE>
 
payments (except principal payments made from the Pre-Funding Account) made to
Class B Certificateholders prior to such date, minus (c) the aggregate amount of
the Class B Investor Charge-Offs for all prior Determination Dates equal to the
amount by which the Class B Invested Amount has been reduced to fund the
Investor Default Amounts on all prior Determination Dates pursuant to Section
4.13(c), minus (d) the aggregate amount of Reallocated Class B Principal
Collections for which neither the Class D Invested Amount nor the Class C
Invested Amount has been reduced for all prior Distribution Dates, and plus (e)
the aggregate amount allocated and available on all prior Business Days pursuant
to subsection 4.9(a)(viii) (including amounts applied pursuant to such
subsection but funded pursuant to Section 4.10(a) and (b) and Section 4.14(a)
and (b)) for the purpose of reimbursing amounts deducted pursuant to the
foregoing clauses (c) and (d).

         Subject to the Agreement, payments of principal are limited to the
unpaid Class B Invested Amount of the Class B Certificates, which may be less
than the unpaid balance of the Class B Certificates pursuant to the terms of the
Agreement. All principal of and interest on the Class B Certificates is due and
payable no later than the Distribution Date in April 2004 (the "Series 1998-2
Termination Date"). After the Series 1998-2 Termination Date neither the Trust
nor the Transferor will have any further obligation to distribute principal or
interest on the Class B Certificates. In the event that the Class B Invested
Amount is greater than zero on the Series 1998-2 Termination Date, the Trustee
will sell or cause to be sold, to the extent necessary, an amount of interests
in the Receivables or certain of the Receivables up to 110% of the Class A
Invested Amount, the Class B Invested Amount, the Class C Invested Amount and
the Class D Invested Amount at the close of business on such date (but not more
than the total amount of Receivables allocable to the Investor Certificates),
and shall pay the proceeds to the Class A Certificateholders pro rata in final
payment of the Class A Certificates, then to the Class B Certificateholders pro
rata in final payment of the Class B Certificates, then to the Class C
Certificateholders pro rata in final payment of the Class C Certificates and
finally to the Class D Certificateholders pro rata in final payment of the Class
D Certificates.

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

                                       B-4
                                        
<PAGE>
 
         IN WITNESS WHEREOF, the Transferor has caused this Certificate to be
duly executed.

                                  GREEN TREE FLOORPLAN
                                    FUNDING CORP., Transferor


                                  By:_________________________
                                       Name:
                                       Title:

Dated: September 14, 1998

                          CERTIFICATE OF AUTHENTICATION

         This is one of the Class B Certificates referred to in the
within-mentioned Pooling and Servicing Agreement.

                                  NORWEST BANK MINNESOTA,
                                  NATIONAL ASSOCIATION, Trustee



                                  By:_______________________
                                       Name:
                                       Title:



                                       B-5
                                  
<PAGE>
 
                                                                       Exhibit C

                      FORM OF CLASS C INVESTOR CERTIFICATE

                  THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER
         THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY
         STATE SECURITIES LAW. THE HOLDER HEREOF, BY PURCHASING THIS
         CERTIFICATE, AGREES THAT THIS CERTIFICATE MAY BE REOFFERED, RESOLD,
         PLEDGED OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES
         ACT AND OTHER APPLICABLE LAWS AND ONLY PURSUANT TO RULE 144A UNDER THE
         SECURITIES ACT TO AN INSTITUTIONAL INVESTOR THAT THE HOLDER REASONABLY
         BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE
         144A ("QIB") PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE
         ACCOUNT OF A QIB, WHOM THE HOLDER HAS INFORMED, IN EACH CASE, THAT THE
         REOFFER, RESALE, PLEDGE OR OTHER TRANSFER IS BEING MADE IN RELIANCE ON
         RULE 144A, OR TO THE TRANSFEROR. EACH CERTIFICATE OWNER BY ACCEPTING A
         BENEFICIAL INTEREST IN THIS CERTIFICATE IS DEEMED TO REPRESENT THAT IT
         IS A QIB PURCHASING FOR ITS OWN ACCOUNT OR A QIB PURCHASING FOR THE
         ACCOUNT OF ANOTHER QIB.

                  THIS CERTIFICATE MAY NOT BE ACQUIRED, SOLD, TRADED OR
         TRANSFERRED, NOR MAY AN INTEREST IN THIS CERTIFICATE BE MARKETED, ON OR
         THROUGH AN "ESTABLISHED SECURITIES MARKET" WITHIN THE MEANING OF
         SECTION 7740(B)(1) OF THE CODE AND ANY PROPOSED, TEMPORARY OR FINAL
         TREASURY REGULATION THEREUNDER, INCLUDING, WITHOUT LIMITATION, AN
         OVER-THE-COUNTER-MARKET OR ANY INTERDEALER QUOTATION SYSTEM THAT
         REGULARLY DISSEMINATES FIRM BUY OR SELL QUOTATIONS.

                  EACH PURCHASER REPRESENTS AND WARRANTS FOR THE BENEFIT OF
         GREEN TREE FLOORPLAN FUNDING CORP. THAT, UNLESS SUCH PURCHASER, AT ITS
         EXPENSE, DELIVERS TO THE TRUSTEE, THE SERVICER AND THE TRANSFEROR AN
         OPINION OF COUNSEL SATISFACTORY TO THEM TO THE EFFECT THAT THE PURCHASE
         OR HOLDING OF A CLASS C CERTIFICATE BY SUCH PURCHASER WILL NOT RESULT
         IN THE ASSETS OF THE TRUST BEING DEEMED TO BE "ASSETS OF THE BENEFIT
         PLAN" AND SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF ERISA AND
         THE CODE AND WILL NOT SUBJECT THE TRUSTEE, THE TRANSFEROR OR THE
         SERVICER TO ANY OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE
         POOLING AND SERVICING AGREEMENT, SUCH PURCHASER EITHER

                                       C-1
<PAGE>
 
         (A) IS NOT (I) AN EMPLOYEE BENEFIT PLAN (AS DEFINED IN SECTION 3(3) OF
         THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED
         ("ERISA")) THAT IS SUBJECT TO THE PROVISIONS OF TITLE I OF ERISA, (II)
         A PLAN DESCRIBED IN SECTION 4975(E)(1) OF THE INTERNAL REVENUE CODE OF
         1986, AS AMENDED, OR (III) AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE
         PLAN ASSETS BY REASON OF A PLAN'S INVESTMENT IN THE ENTITY, INCLUDING,
         WITHOUT LIMITATION, AN INSURANCE COMPANY GENERAL ACCOUNT OR (B) IS AN
         INSURANCE COMPANY ACTING ON BEHALF OF ITS GENERAL ACCOUNT AND (I) ON
         THE DATE IT ACQUIRES THE CERTIFICATES, LESS THAN 25% OF THE ASSETS OF
         SUCH GENERAL ACCOUNT (AS REASONABLY DETERMINED BY SUCH INSURANCE
         COMPANY) CONSTITUTE PLAN ASSETS FOR PURPOSES OF TITLE I OF ERISA AND
         SECTION 4975 OF THE CODE, AND (II) IF, AFTER THE INITIAL ACQUISITION OF
         THE CERTIFICATES, AT ANY TIME DURING ANY CALENDAR QUARTER 25% OR MORE
         OF THE ASSETS OF SUCH GENERAL ACCOUNT (AS REASONABLY DETERMINED BY SUCH
         INSURANCE COMPANY NO LESS FREQUENTLY THAN EACH CALENDAR QUARTER)
         CONSTITUTE PLAN ASSETS FOR PURPOSES OF TITLE I OF ERISA OR SECTION 4975
         OF THE CODE AND NO EXEMPTION OR EXCEPTION FROM THE PROHIBITED
         TRANSACTION RULES APPLIES TO THE CONTINUED HOLDING OF THE CERTIFICATES
         UNDER SECTION 401(C) OF ERISA AND THE FINAL REGULATIONS THEREUNDER OR
         UNDER AN EXEMPTION OR REGULATION ISSUED BY THE UNITED STATES DEPARTMENT
         OF LABOR UNDER ERISA, THEN SUCH INSURANCE COMPANY AGREES TO DISPOSE OF
         ALL OF THE CERTIFICATES THEN HELD IN ITS GENERAL ACCOUNT BY THE END OF
         THE NEXT FOLLOWING CALENDAR QUARTER.


No. _________                                                        $21,250,000

           GREEN TREE FLOATING RATE FLOORPLAN RECEIVABLES MASTER TRUST
              FLOATING RATE FLOORPLAN RECEIVABLE TRUST CERTIFICATE,
                             SERIES 1998-2, CLASS C

         Evidencing an undivided interest in a trust, the corpus of which
consists of receivables generated from time to time in the ordinary course of
business from the portfolio of revolving financing arrangements (the "Accounts")
of Green Tree Financial Corporation ("Green Tree" or the "Servicer") and other
assets and interests constituting the Trust under the Agreement described below.

         This certificate (a "Certificate") does not represent an interest in,
or an obligation of, Green Tree Floorplan Funding Corp., Green Tree or any
affiliate of either of them, except to the extent set forth in the Agreement.

                                       C-2
<PAGE>
 
         This certifies that Green Tree Floorplan Funding Corp. (the
"Certificateholder") is the registered owner of a fractional undivided interest
in the Green Tree Floorplan Receivables Master Trust (the "Trust") issued
pursuant to the Pooling and Servicing Agreement, dated as of December 1, 1995
(the "Pooling and Servicing Agreement"; such term to include any amendment
thereto) among Green Tree Floorplan Funding Corp., as Transferor (the
"Transferor"), Green Tree, as Servicer, and Norwest Bank Minnesota, National
Association, as Trustee (the "Trustee"), and the Series 1998-2 Supplement, dated
as of August 1, 1998 (the "Series 1998-2 Supplement"), among the Transferor,
Green Tree, as Servicer, and the Trustee. The Pooling and Servicing Agreement,
as supplemented by the Series 1998-2 Supplement, is herein referred to as the
"Agreement." The corpus of the Trust consists of all of the Transferor's right,
title and interest in, to and under the Trust Property (as defined in the
Agreement).

         This Certificate does not purport to summarize the Agreement and
reference is made to that Agreement for information with respect to the
interests, rights, benefits, obligations, proceeds, and duties evidenced hereby
and the rights, duties and obligations of the Trustee. To the extent not defined
herein, the capitalized terms used herein have the meanings ascribed to them in
the Agreement. This Certificate is one of a class of Certificates entitled
"Green Tree Floorplan Receivables Master Trust Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class C" (the "Class C
Certificates"), each of which represents a fractional undivided interest in the
Trust, and is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement, as amended from time to time,
the Certificateholder by virtue of the acceptance hereof assents and by which
the Certificateholder is bound.

         The Transferor has structured the Agreement, the Class C Certificates,
the Green Tree Floorplan Receivables Master Trust Floating Rate Floorplan
Receivable Trust Certificates, Series 1998-2, Class A (the "Class A
Certificates") and the Green Tree Floorplan Receivables Master Trust Floating
Rate Floorplan Receivable Trust Certificates, Series 1998-2, Class B (the "Class
B Certificates") with the intention that the Class A, Class B and Class C
Certificates will qualify under applicable tax law as indebtedness, and both the
Transferor and each holder of a Class C Certificate (a "Class C
Certificateholder") or any interest therein by acceptance of its Certificate or
any interest therein, agrees to treat the Class A, Class B and Class C
Certificates for purposes of federal, state and local income or franchise taxes
and any other tax imposed on or measured by income, as indebtedness.

         Subject to the terms of the Agreement, no principal will be payable to
the Class C Certificateholders until the date on which an amount equal to the
Class B Invested Amount has been deposited in the Principal Account. No
principal will be payable to the Class C Certificateholders until all principal
payments have been made to the Class A Certificateholders and the Class B
Certificateholders.

         Each Class C Certificate represents the right to receive the lesser of
(i) interest at the rate of .70% per annum above LIBOR determined on September
10, 1998 for the

                                       C-3
<PAGE>
 
period from September 14, 1998 up to but excluding October 13, 1998, and at a
rate equal to .70% per annum above LIBOR determined on the related LIBOR
Determination Date for each Interest Accrual Period thereafter or (ii) the
applicable Net Receivables Rate (such rate, as in effect from time to time, the
"Class C Certificate Rate"). Interest on the Class C Certificates will accrue
from the Series 1998-2 Issuance Date and will be distributed on October 13,
1998, and on the 13th day of each month thereafter, or if such day is not a
Business Day, on the next succeeding Business Day (each, a "Distribution Date"),
in an amount equal to the product of (a) the actual number of days in the
related Interest Accrual Period divided by 360, (b) the Class C Certificate Rate
and (c) the outstanding principal balance of the Class C Certificates at the
close of business on the first day of such Interest Accrual Period.

         "Class C Invested Amount" for any date means an amount equal to (a) the
initial principal balance of the Class C Certificates less the Class C
Percentage of the initial deposit to the Pre-Funding Account plus the Class C
Percentage of any withdrawals from the Pre-Funding Account pursuant to Section
4.18 (i) during the Funding Period, in connection with the addition of
Receivables to the Trust or payment of principal to the Series 1995-1
Certificates or (ii) at the end of the Funding Period, for deposit into the
Excess Funding Account, minus (b) the aggregate amount of principal payments
(except principal payments made from the Pre-Funding Account) made to Class C
Certificateholders prior to such date, minus (c) the aggregate amount of the
Class C Investor Charge-Offs for all prior Distribution Dates equal to the
amount by which the Class C Invested Amount has been reduced to fund the
Investor Default Amounts on all prior Distribution Dates pursuant to Section
4.13(b), minus (d) the aggregate amount of Reallocated Class B Principal
Collections and Reallocated Class C Principal Collections for which the Class D
Invested Amount has not been reduced for all prior Distribution Dates (provided
that the Class C Invested Amount may not be reduced below zero), and plus (e)
the aggregate amount allocated and available on all prior Business Days pursuant
to subsection 4.9(a)(ix) (including amounts applied pursuant to such subsection
but funded pursuant to Section 4.10(a) and (b) and Section 4.14(a)) for the
purpose of reimbursing amounts deducted pursuant to the foregoing clauses (c)
and (d).

         Subject to the Agreement, payments of principal are limited to the
unpaid Class C Invested Amount of the Class C Certificates, which may be less
than the unpaid balance of the Class C Certificates pursuant to the terms of the
Agreement. All principal on the Class C Certificates is due and payable no later
than the Distribution Date in April 2004 (or if such day is not a Business Day,
the next succeeding Business Day) (the "Series 1998-2 Termination Date"). After
the Series 1998-2 Termination Date neither the Trust nor the Transferor will
have any further obligation to distribute principal on the Class C Certificates.
In the event that the Class C Invested Amount is greater than zero on the Series
1998-2 Termination Date, the Trustee will sell or cause to be sold, to the
extent necessary, an amount of interests in the Receivables or certain of the
Receivables up to 110% of the Class A Invested Amount, the Class B Invested
Amount, the Class C Invested Amount and the Class D Invested Amount at the close
of

                                       C-4
<PAGE>
 
business on such date (but not more than the total amount of Receivables
allocable to the Investor Certificates), and shall pay the proceeds to the Class
A Certificateholders pro rata in final payment of the Class A Certificates, then
to the Class B Certificateholders pro rata in final payment of the Class B
Certificates, then to the Class C Certificateholders pro rata in final payment
of the Class C Certificates and finally to the Class D Certificateholders pro
rata in final payment of the Class D Certificates.

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



                                       C-5
<PAGE>
 
         IN WITNESS WHEREOF, the Transferor has caused this Certificate to be
duly executed.

                                  GREEN TREE FLOORPLAN
                                    FUNDING CORP., Transferor


                                  By:________________________
                                     Name:
                                     Title:

Dated: September 14, 1998

                          CERTIFICATE OF AUTHENTICATION

         This is one of the Class C Certificates referred to in the
within-mentioned Pooling and Servicing Agreement.

                                  NORWEST BANK MINNESOTA,
                                  NATIONAL ASSOCIATION, Trustee



                                  By:__________________________
                                     Name:
                                     Title:



                                       C-6
<PAGE>
 
                                                                       Exhibit D

                      FORM OF CLASS D INVESTOR CERTIFICATE

                  THIS CERTIFICATE WAS ORIGINALLY ISSUED IN A TRANSACTION EXEMPT
         FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
         "SECURITIES ACT"). THIS CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE
         SECURITIES ACT OR ANY APPLICABLE STATE SECURITIES LAW OF ANY STATE AND
         MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED UNLESS
         REGISTERED PURSUANT TO OR EXEMPT FROM REGISTRATION UNDER THE SECURITIES
         ACT AND ANY OTHER APPLICABLE SECURITIES LAW. GREEN TREE FLOORPLAN
         FUNDING CORP. SHALL BE PROHIBITED FROM TRANSFERRING ANY INTEREST IN OR
         PORTION OF THIS CERTIFICATE UNLESS, PRIOR TO SUCH TRANSFER, IT SHALL
         HAVE DELIVERED TO THE TRUSTEE AN OPINION OF COUNSEL TO THE EFFECT THAT
         SUCH PROPOSED TRANSFER WILL NOT ADVERSELY AFFECT THE FEDERAL OR
         MINNESOTA INCOME TAX CHARACTERIZATION OF ANY OUTSTANDING SERIES OF
         INVESTOR CERTIFICATES OR THE TAXABILITY (OR TAX CHARACTERIZATION) OF
         THE TRUST UNDER FEDERAL OR MINNESOTA INCOME TAX LAWS. IN NO EVENT SHALL
         THE TRANSFEROR BE PERMITTED TO TRANSFER ANY INTEREST IN OR PORTION OF
         THIS CERTIFICATE IF, AFTER GIVING EFFECT TO SUCH PROPOSED TRANSFER,
         TAKING INTO ACCOUNT THE CERTIFICATES WHOSE TRANSFER IS PROPOSED, MORE
         THAN 20% (BY INVESTED AMOUNT AND BY VALUE) OF THE OUTSTANDING
         CERTIFICATES ISSUED BY THE TRUST WITH RESPECT TO WHICH NO OPINION OF
         COUNSEL WAS ISSUED THAT THE APPLICABLE CLASS WOULD BE TREATED AS DEBT
         FOR FEDERAL INCOME TAX PURPOSES (INCLUDING THE EXCHANGEABLE TRANSFEROR
         CERTIFICATE AND EACH TRANSFEROR RETAINED CLASS) WOULD NOT BE
         BENEFICIALLY OWNED BY GREEN TREE FLOORPLAN FUNDING CORP.

                  EACH PURCHASER REPRESENTS AND WARRANTS FOR THE BENEFIT OF
         GREEN TREE FLOORPLAN FUNDING CORP. THAT UNLESS SUCH PURCHASER, AT ITS
         EXPENSE, DELIVERS TO THE TRUSTEE, THE SERVICER AND THE TRANSFEROR AN
         OPINION OF COUNSEL SATISFACTORY TO THEM TO THE EFFECT THAT THE PURCHASE
         OR HOLDING OF THIS CERTIFICATE BY SUCH PURCHASER WILL NOT RESULT IN THE
         ASSETS OF THE TRUST BEING DEEMED TO BE "ASSETS OF THE BENEFIT PLAN" OR
         SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF ERISA AND THE CODE
         AND WILL NOT SUBJECT THE TRUSTEE, THE TRANSFEROR OR THE SERVICER TO ANY
         OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE POOLING AND SERVICING
         AGREEMENT, SUCH PURCHASER IS NOT

                                       D-1
<PAGE>
 
         (I) AN EMPLOYEE BENEFIT PLAN (AS DEFINED IN SECTION 3(3) OF THE
         EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"))
         THAT IS SUBJECT TO THE PROVISIONS OF TITLE I OF ERISA, (II) A PLAN
         DESCRIBED IN SECTION 4975(E)(1) OF THE INTERNAL REVENUE CODE OF 1986,
         AS AMENDED, OR (III) AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN
         ASSETS BY REASON OF A PLAN'S INVESTMENT IN THE ENTITY.

No. _____                                                            $16,250,000

                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST
              FLOATING RATE FLOORPLAN RECEIVABLE TRUST CERTIFICATE,
                             SERIES 1998-2, CLASS D

         Evidencing an undivided interest in a trust, the corpus of which
consists of receivables generated from time to time in the ordinary course of
business from the portfolio of revolving financing arrangements (the "Accounts")
of Green Tree Financial Corporation ("Green Tree" or the "Servicer") and other
assets and interests constituting the Trust under the Agreement described below.

         This certificate (a "Certificate") does not represent an interest in,
or an obligation of, Green Tree Floorplan Funding Corp., Green Tree or any
affiliate of either of them.

         This certifies that Green Tree Floorplan Funding Corp. (the
"Certificateholder") is the registered owner of a fractional undivided interest
in the Green Tree Floorplan Receivables Master Trust (the "Trust") created
pursuant to the Pooling and Servicing Agreement, dated as of December 1, 1995
(the "Pooling and Servicing Agreement"; such term to include any amendment
thereto) among Green Tree Floorplan Funding Corp., as Transferor (the
"Transferor"), Green Tree, as Servicer, and Norwest Bank Minnesota, National
Association, as Trustee (the "Trustee"), and the Series 1998-2 Supplement, dated
as of August 1, 1998 (the "Series 1998-2 Supplement"), among the Transferor,
Green Tree, as Servicer, and the Trustee. The Pooling and Servicing Agreement,
as supplemented by the Series 1998-2 Supplement, is herein referred to as the
"Agreement."

         This Certificate does not purport to summarize the Agreement and
reference is made to that Agreement for information with respect to the
interests, rights, benefits, obligations, proceeds, and duties evidenced hereby
and the rights, duties and obligations of the Trustee. To the extent not defined
herein, the capitalized terms used herein have the meanings ascribed to them in
the Agreement. This Certificate is one of a class of Certificates entitled
"Green Tree Floorplan Receivables Master Trust Floorplan Receivable Trust
Certificates, Series 1998-2, Class D" (the "Class D Certificates"), each of
which represents a fractional undivided interest in the Trust, and is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement,

                                       D-2
<PAGE>
 
as amended from time to time, the Certificateholder by virtue of the acceptance
hereof assents and by which the Certificateholder is bound.

         Green Tree Floorplan Funding Corp. shall be prohibited from
Transferring any interest in or portion of the Class D Certificate unless, prior
to such Transfer, it shall have delivered to the Trustee an Opinion of Counsel
to the effect that such proposed Transfer will not adversely affect the Federal
or Minnesota income tax characterization of any outstanding Series of Investor
Certificate or the taxability (or tax characterization) of the Trust under
Federal or Minnesota income tax laws. In no event shall Green Tree Floorplan
Funding Corp. be permitted to Transfer any interest in or portion of the Class D
Certificate if, after giving effect to such proposed Transfer, taking into
account the certificates whose Transfer is proposed, more than 20% (by Invested
Amount and by value) of the outstanding certificates issued by the Trust with
respect to which no Opinion of Counsel was issued that the applicable class
would be treated as debt for federal income tax purposes (including the
Exchangeable Transferor Certificate and each Transferor Retained Class) would
not be beneficially owned by the Transferor.

         Subject to the terms of the Agreement, no principal will be payable to
the Class D Certificateholders until the date on which an amount equal to the
Class C Invested Amount has been deposited in the Principal Account. No
principal will be payable to the Class D Certificateholders until all principal
payments have first been made to the Class A Certificateholders, the Class B
Certificateholders and the Class C Certificateholders.

         Each Class D Certificate represents the right to receive the lesser of
(i) interest at the rate of .70% per annum above LIBOR determined on September
10, 1998 for the period from September 14, 1998 up to be excluding October 13,
1998, and at a rate equal to .70% per annum above LIBOR determined on the
related LIBOR Determination Date for each Interest Accrual Period thereafter or
(ii) the applicable Net Receivables Rate (such rate, as in effect from time to
time, the "Class D Certificate Rate"). Interest on the Class D Certificates will
accrue from the Series 1998-2 Issuance Date and will be distributed on October
13, 1998, and on the 13th day of each month thereafter, or if such day is not a
Business Day, on the next succeeding Business Day (each, a "Distribution Date"),
in an amount equal to the product of (a) the actual number of days in the
related Interest Accrual Period divided by 360, (b) the Class D Certificate Rate
and (c) with respect to the Funding Period, the outstanding principal balance of
the Class D Certificates at the close of business on the first day of such
Interest Accrual Period.

         "Class D Invested Amount" means an amount equal to (a) the initial
principal balance of the Class D Certificates plus (b) the Class D Incremental
Invested Amount for the related Monthly Period, plus (c) any Additional Class D
Invested Amount, minus (d) the aggregate amount of principal payments made to
Class D Certificateholders prior to such date, minus (e) the aggregate amount of
Class D Investor Charge-Offs for all prior Determination Dates as described in
the Agreement, minus (f) the aggregate amount of Reallocated Class D Principal
Collections for all prior Distribution Dates,

                                       D-3
<PAGE>
 
plus (g) the aggregate amount of Interest Collections and Excess Interest
Collections applied on all prior Distribution Dates for the purpose of
reimbursing amounts deducted pursuant to the foregoing clauses (e) and (f).

         Subject to the Agreement, payments of principal are limited to the
unpaid Class D Invested Amount of the Class D Certificates, which may be less
than the unpaid balance of the Class D Certificates pursuant to the terms of the
Agreement.

          All principal of and interest on the Class D Certificates is due and
payable no later than the Distribution Date in April 2004 (the "Series 1998-2
Termination Date"). After the Series 1998-2 Termination Date neither the Trust
nor the Transferor will have any further obligation to distribute principal or
interest on the Class D Certificates. In the event that the Class D Invested
Amount is greater than zero on the Series 1998-2 Termination Date, the Trustee
will sell or cause to be sold, to the extent necessary, an amount of interests
in the Receivables or certain of the Receivables up to 110% of the Class A
Invested Amount, the Class B Invested Amount, the Class C Invested Amount and
the Class D Invested Amount at the close of business on such date (but not more
than the total amount of Receivables allocable to the Investor Certificates),
and shall pay the proceeds to the Class A Certificateholders pro rata in final
payment of the Class A Certificates, then to the Class B Certificateholders pro
rata in final payment of the Class B Certificates, then to the Class C
Certificateholders pro rata in final payment of the Class C Certificates and
finally to the Class D Certificateholders pro rata in final payment of the Class
D Certificates.

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



                                       D-4
<PAGE>
 
         IN WITNESS WHEREOF, the Transferor has caused this Certificate to be
duly executed.

                                  GREEN TREE FLOORPLAN
                                    FUNDING CORP., Transferor


                                  By:  _________________________
                                       Name:
                                       Title:
Dated: September 14, 1998


                          CERTIFICATE OF AUTHENTICATION

         This is one of the Class D Certificates referred to in the
within-mentioned Pooling and Servicing Agreement.

                                  NORWEST BANK MINNESOTA,
                                  NATIONAL ASSOCIATION, Trustee


                                  By:  __________________________
                                       Name:
                                       Title:


                                       D-5
<PAGE>
 
                                                                       Exhibit E

                             FORM OF MONTHLY REPORT

                 (The numbers included in the following form are
                        for informational purposes only)

                       GREEN TREE FLOORPLAN FUNDING CORP.

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

                  GREEN TREE FLOORPLAN RECEIVABLES MASTER TRUST
                            -------------------------


                                 (See Attached)

                                       E-1
<PAGE>
 
                                                                       Exhibit F


                 Form of Representation Letter and Certification


                                                                __________, 1998

Green Tree Floorplan Funding Corp.
500 Landmark Towers
345 St. Peter Street
St. Paul, MN  55102
Attention:  Chief Financial Officer

Norwest Bank Minnesota, National Association
Sixth Street and Marquette Avenue
Minneapolis, Minnesota  55479-0069
Attention:  Corporate Trust Department

Ladies and Gentlemen:

         This is to notify you as to the transfer of $________ of Floorplan
Receivable Trust Certificates, Series 1998-2, Class C (the "Class C
Certificates") of Green Tree Floorplan Receivables Master Trust (the "Company").

         The undersigned is the holder of the Class C Certificates and with this
notice hereby deposits with the Trustee $________ principal amount of Class C
Certificates and requests that Class C Certificates in the same principal amount
be issued and executed by the Company and authenticated by the Trustee and
registered to the purchaser on __________, 1998, as specified in the Pooling and
Servicing Agreement, as supplemented by the Series 1998-2 Supplement thereto, as
follows:

         Name:                                  Denominations:
         Address:
         Taxpayer I.D. No.:

         In connection with the proposed purchase, the undersigned hereby
confirms that:

         1. The undersigned (i) reasonably believes the purchaser is a
"qualified institutional buyer," as defined in Rule 144A under the Securities
Act of 1933 (the "Act"), (ii) such purchaser has acquired the Class C
Certificates in a transaction effected in accordance with the exemption from the
registration requirements of the Act provided by Rule 144A and, (iii) if the
purchaser has purchased the Certificates for one or more accounts for which it
is acting as fiduciary or agent, (A) each such account is a qualified

                                       F-1
<PAGE>
 
institutional buyer and (B) each such account is acquiring the Class C
Certificates for its own account or for one or more institutional accounts for
which it is acting as fiduciary or agent in a minimum amount equivalent to not
less than U.S. $250,000 for each such account.

         2. The undersigned has neither acquired nor will the undersigned
reoffer, resell, pledge or otherwise transfer (any such act, a "Transfer") any
Class C Certificate the undersigned acquires (or any interest therein) or cause
any Class C Certificate (or any interest therein) to be marketed on or through
an "established securities market" within the meaning of Section 7704(b)(1) of
the Internal Revenue Code of 1986, as amended (the "Code") and any treasury
regulation thereunder, including, without limitation, an over-the-counter-market
or an interdealer quotation system that regularly disseminates firm buy or sell
quotations.

         3. The undersigned is not and will not become, for so long as the
undersigned owns any interest in the Class C Certificates, a partnership,
Subchapter S corporation or grantor trust for United States federal income tax
purposes. [IF THIS REPRESENTATION CANNOT BE MADE, THE TRANSFEROR, THE SERVICER
OR THE TRUSTEE MAY REQUIRE ADDITIONAL REPRESENTATIONS.]

         4. The undersigned is a person who is either (A)(i) a citizen or
resident of the United States, (ii) a corporation or other entity organized in
or under the laws of the United States or any political subdivision thereof or
(iii) a person not described in (i) or (ii) whose ownership of the Class C
Certificates is effectively connected with a such person's conduct of a trade or
business within the United States (within the meaning of the Code) and our
ownership of any interest in the Class C Certificate will not result in any
withholding obligation with respect to any payments with respect to the Class C
Certificates by any person or (B) an estate or trust the income of which is
includible in gross income for United States federal income tax purposes. The
undersigned agrees that (a) if the undersigned is a person described in clause
(A)(i) or (A)(ii) above, the undersigned will furnish to the person from whom
the undersigned is acquiring a Class C Certificate, the Servicer and the
Trustee, a properly executed U.S. Internal Revenue Service Form W-9 and a new
Form W-9, or any successor applicable form, upon the expiration or obsolescence
of any previously delivered form or (b) if the undersigned a person described in
clause (A)(iii) above, the undersigned will furnish to the person from whom the
undersigned is acquiring a Class C Certificate, the Servicer and the Trustee, a
properly executed U.S. Internal Revenue Service Form 4224 and a new Form 4224,
or any successor applicable form, upon the expiration or obsolescence of any
previously delivered form (and, in each case, such other certifications,
representations or opinions of counsel as may be requested by the Transferor,
the Servicer or the Trustee). The undersigned recognizes that if the undersigned
is a tax-exempt entity, payments with respect to the Class C Certificates may
constitute unrelated business income.


                                       F-2
<PAGE>
 
         5. The undersigned understands that no subsequent Transfer of a Class C
Certificate is permitted unless (i) such Transfer is of a Class C Certificate
with a denomination of at least $1,000,000 and (ii) the Transferor and the
Servicer each consents in writing to the proposed Transfer, which consent shall
be granted (assuming that all other conditions to such Transfer are satisfied)
unless either the Transferor or the Servicer determines in its sole and absolute
discretion that such Transfer would created a risk that the Trust would be
classified for federal or any applicable state tax purposes as an association or
publicly traded partnership taxable as a corporation; provided, that any
attempted Transfer that would cause the number of Targeted Holders (as defined
in the Series 1998-2 Supplement) to exceed ninety nine shall be void; and
provided, further, that there shall not at any time be more than 5 holders of
Class C Certificates of Series 1998-2 or such other number as may be consented
to by the Transferor, which consent may be withheld in its sole and absolute
discretion.

         6. The undersigned understands that the opinion of tax counsel that the
Trust is not a publicly traded partnership taxable as a corporation is dependent
in part on the accuracy of the representations in paragraphs 2, 3, 4 and 5 above
and that, if such representations are not accurate, in addition to being subject
to having the purchase rescinded, the undersigned will be liable for damages.

         7. The undersigned is either (a) not (i) an "employee benefit plan" (as
defined in Section 3(3) of ERISA), including governmental plans and church
plans, (ii) a plan described in Section 4975(e)(1) of the Code, including
individual retirement accounts and Keogh plans, or (iii) any other entity whose
underlying assets include "plan assets" (as defined in the United States
Department of Labor ("DOL") Regulation Section 2510.3-101, 29 C.F.R. ss.
2510.3-101 or otherwise under ERISA) by reason of a plan's investment in the
entity, including, without limitation, an insurance company general account, or
(b) an insurance company acting on behalf of a general account and (i) on the
date hereof less than 25% of the assets of such general account (as reasonably
determined by us) constitute "plan assets" for purposes of Title I of ERISA and
Section 4975 of the Code, and (ii) the undersigned agrees that if, after the
undersigned's initial acquisition of the Class C Certificates, at any time
during any calendar quarter 25% or more of the assets of such general account
(as reasonably determined by us no less frequently than each calendar quarter)
constitute "plan assets" for purposes of Title I of ERISA or Section 4975 of the
Code and no exemption or exception from the prohibited transaction rules applies
to the continued holding of the Class C Certificates under Section 401(c) of
ERISA and the final regulations thereunder or under an exemption or regulation
issued by the DOL under ERISA, we will dispose of all of the Class C
Certificates then held in our general account by the end of the next following
calendar quarter.

         8. The undersigned understands that any purported Transfer of any Class
C Certificate in contravention of the restrictions and conditions set forth in
paragraphs 1 through 7 above (including any violation of the representation in
paragraph 3 by an investor who continues to hold a Class C Certificate occurring
any time after the

                                       F-3
<PAGE>
 
Transfer in which it acquired such Class C Certificate) shall be null and void,
and the purported transferee shall not be recognized by the Trust or any other
person as a Class C Certificateholder for any purpose.

         9. The person signing this letter on behalf of the ultimate beneficial
purchaser of the Class C Certificates has been duly authorized by such
beneficial purchaser of the Class C Certificates to do so.

         10. The Class C Certificates purchased by the undersigned should be
registered in the name and issued in the denominations set forth on Schedule 1
hereto. All payments on the Class C Certificates held by the undersigned should
be wired in accordance with the instructions set forth on Schedule 1 hereto
unless the undersigned otherwise notifies the Transferor, the Servicer and the
Trustee in writing.

         You are entitled to rely upon this letter, and the undersigned
understands that, in granting their respective consents to the purchase of Class
C Certificates, the Transferor and the Servicer will rely on the undersigned's
representations and warranties in this letter and on the undersigned's
certifications in the documents (including, without limitation, the Form W-9 or
Form 4224, as applicable) delivered by the undersigned to the Transferor, the
Servicer or the Trustee in conjunction with the purchase of Class C Certificates
by the undersigned. You are irrevocably authorized to produce this letter or a
copy hereof to any interested party in any administrative or legal proceeding or
official inquiry with respect to the matters covered hereby.

                                  Very truly yours,

                                  NAME OF HOLDER OF CERTIFICATE


                                  By:__________________________
                                     Name, Chief Financial
                                     or other Executive Officer


                                       F-4
<PAGE>
 
                                                                      Schedule 1
                                                                      ----------

                      Registration and Payment Instructions
                      -------------------------------------


Registration Instructions:
- --------------------------

Full Legal Name of Purchaser:___________________________________________________
Name in Which Certificates Should be Registered:________________________________
Number and Denomination of Certificates:________________________________________
________________________________________________________________________________




Payment Instructions:
- ---------------------

Name of Bank:       ____________________________________________________________
Address of Bank:    ____________________________________________________________
Account Name:       ____________________________________________________________
Account Number:     ____________________________________________________________
ABA Number:         ____________________________________________________________
Reference:          ____________________________________________________________


Notice Information:

Address:            ____________________________________________________________
                    ____________________________________________________________
Attention:          ____________________________________________________________
Telephone:          ____________________________________________________________
Telefax:            ____________________________________________________________

[PLEASE ATTACH AN ORIGINAL EXECUTED U.S. INTERNAL REVENUE SERVICE FORM W-9
AND/OR FORM 4224, IF APPLICABLE]










                                       F-5


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