SERVICE REPLACEMENT TRANS. (SRTA) 440-T4/4T60 MODEL UPD.

Models Affected: 1984-90 ALL MODELS W/4T60 (440-T4)

This bulletin supersedes bulletin 90-7-42 issued 6/90. This bulletin is being updated to include additional models on the chart that were omitted from bulletin 90-7-42.

BULLETIN COVERS:

This bulletin expands the list for all SRTA model applications. The SRTA Model Replacement Chart offers a complete list of the 1984 through 1990 SRTA models offered by Hydra-matic.

SRTA ADVANTAGES:

A SRTA is the product of a highly successful, customer satisfaction driven program providing the technician with a service alternative when addressing diagnostic and overhaul concerns.

All SRTA units are designed and remanufactured to current engineering specifications and are often less costly than major overhaul.

GMSPO Parts Distribution Centers are conunitted to 48 hour maximum delivery time for all SRTA models, with no VIP charges.

IN THE INTEREST OF CUSTOMER SATISFACTION, SRTA MODELS SHOULD ONLY BE CONSIDERED WHEN THE PROJECTED COST OF REPAIR EXCEEDS THE COST OF A SRTA REPLACEMENT.

SERVICE NOTE:

Cooler flushing MUST be performed whenever a transmission/transaxle is removed for service. It is essential to flush the cooler after SRTA installation, major overhaul, in any case of pump or torque converter replacement, or when fluid contamination is suspected. Time allowance has been added to operation K7000 (Transmission Removal and Replacement) for 1987 and 1988 models. Add 0.6 hours to Removal and Replacement allowances for 1982 through 1986 models.

SRTA MODEL REPLACEMENT CHART:

SRTA Part Model Model(s) Model(s) Model Number Description Year(s) Replaced

50BH 8658908 4.3L Diesel 1985 50BH 6000

50YH 8658909 4.3L Diesel 1985 50HY 6000

6CFH 8658928 2.8L 6000 1984-86 4CWH, 5CWH, 5CPH, 5CMH, 5CNH, 6CFH, 6CMH, 6CNH

7CAH 8658957 2.8L 6000 1987 7CAH

7CBH 8658987 2.8L 6000 STE 1987 7CBH

7FBH 8658947 3.8L Bonneville 1987 7FBH, 7FKH

8BJH 8668906 3800 Bonneville 1988 8BJH

8BKH 8668907 3800 Bonneville 1988 8BKH

8CRH 8668914 2.8L MFI 1988 8CRH Grand Prix

8CTH 8668915 2.8L MFI 1988 8CTH Grand Prix

8CXH 8668916 2.8L MFI 6000 1988 8CXH

8FBH 8668917 3.8L SFI 1983 8FBH Bonneville

9YAH 8675933 2.8L 1989 9CDH, 9YAH Grand Prix

9YBH 8675934 2.8L 6000 1988- 89 8CMH, 9CLH, 9YBH 9YCH 8675935 2.8L 6000 STE 1988-89 8CWH, 9CPH, 9YCH

9YFH 8675950 2.8L 1988-89 8CFH, 9CYH, 9YFH Grand Prix

9YJH 8675951 2.8L 6000 1989 9CZH, 9YJH

OYRH 8676915 3.1L 1990 OLAH, OYRH Grand Prix

OYDH 8676913 3.1L 1990 OCHH, OYKH, OYDH Grand Prix

OYHH 8676914 3.1L 1990 OCJH, OYLH, OYHH Grand Prix

OYSH 8676916 3.1L 6000 1990 OLMH, OYSH

OYTH 8676917 3.1L 6000 1990 OLNH, OYTH

OWMH 8676909 3800 1989-90 9BHH, 9WRH, OBHH, Bonneville OWMH

OWJH 8676908 3800 1989-90 9BJH, 9WZH, OBJH, Bonneville OWJH

OWXH 8676912 3800 1989-90 9PAH, 9PBH, OPAH, Bonneville SSE OWXH

Parts are currently available from GMSPO.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.