Pricing Supplement Dated May 20, 1999 Rule 424(b)(3)
(To Prospectus Dated April 22, 1999) File No. 333-76483
GENERAL MOTORS ACCEPTANCE CORPORATION
Medium-Term Notes - Floating Rate
____________________________________________________________________________
Agent: Merrill Lynch
Principal Amount: $30,000,000.00
Agent's Discount
or Commission: $42,000.00
Net Proceeds to Company: $29,958,000.00
Initial Interest Rate: Reset on the Issue Date (also an Interest
Reset Date).
Issue Date: 05/25/99
Maturity Date: 05/28/02
____________________________________________________________________________
Calculation Agent: GMAC
Interest Calculation:
/X/ Regular Floating Rate Note
Interest Rate Basis: / / CD Rate / / Commercial Paper Rate
/ / Prime Rate / / Federal Funds Rate
/X/ LIBOR (see below) / / Treasury Rate
/ / Other
(see attached)
If LIBOR, Designated LIBOR Page / / Reuters Page: / / or
/X/ Telerate Page: 3750
Interest Reset Dates: Each February 28, May 28, August 28, and November 28.
The first interest reset date will be August 28, 1999.
The final reset date will be May 28, 2002.
Interest Payment Dates: Each February 28, May 28, August 28, and November 28
commencing August 28, 1999 and ending May 28, 2002.
Index Maturity: 3 Months
Spread (+/-): +.15%
Day Count Convention:
/X/ Actual/360 for the period from 05/25/99 to 05/28/02
/ / Actual/Actual for the period from / / to / /
/ / 30/360 for the period from / / to / /
Redemption:
/X/ The Notes cannot be redeemed prior to the Stated Maturity Date.
/ / The Notes may be redeemed prior to Stated Maturity Date.
/ / Initial Redemption Date:
Initial Redemption Percentage: ___%
Annual Redemption Percentage Reduction: ___% until Redemption
Percentage is 100% of the Principal Amount.
Repayment:
/X/ The Notes cannot be repaid prior to the Maturity Date.
/ / The Notes can be repaid prior to the Maturity Date at the option of
the holder of the Notes. (See Below)
/ / Optional Repayment Date(s):
Repayment Price: %
Currency:
Specified Currency: U.S. (If other than U.S. dollars, see attached)
Minimum Denominations: ___________ (Applicable only if Specified
Currency is other than U.S. dollars)
Original Issue Discount: / / Yes /X/ No
Total Amount of OID: Yield to Maturity:
Initial Accrual Period:
Form: /X/ Book-Entry / / Certificated
Other: /X/ Principal / / Agent
