For 1990-2009 cars

# 2-3 SLIP OR FLARE AND/OR DELAYED SHIFT 2-3 UPSHIFTS

#### BULLETIN COVERS:

NEW FIBER PLATES WHICH HAVE A SMOOTH SURFACE THAT WILL REDUCE THE POTENTIAL FOR A 2-3 SLIP, 2-3 FLARE AND/OR DELAYED 2-3 UPSHIFTS DURING LIGHT THROTTLE ACCELERATION.

DATE OF PRODUCTION CHANGE:

FIBER PLATES FOR THE DIRECT CLUTCH ASSEMBLY WITH THE NEW SMOOTH SURFACE WENT INTO PRODUCTION FEBRUARY 27, 1989 (JULIAN DATE 058) FOR ALL THM 125/125C/HYDRA-MATIC 3T40 TRANSAXLES.

#### SERVICE NOTES:

THIS BULLETIN ONLY PERTAINS TO THM 125C/HYDRA-MATIC 3T40 TRANSAXLES EQUIPPED WITH GROOVED FIBER PLATES IN THE DIRECT CLUTCH ASSEMBLY, BUILT BEFORE FEBRUARY 27, 1989 (JULIAN DATE 058).

#### SERVICE ACTION:

TO SERVICE ANY THM 125/125C/HYDRA-MATIC 3T40 FOR THIS CONDITION REPLACE THE GROOVED (EXISTING) FIBER PLATES WITH THE NEW SMOOTH SURFACE FIBER PLATES. GROOVED FIBER PLATES ARE OPTIONAL IN THE DIRECT CLUTCH ASSEMBLY FOR THE ABOVE MODEL YEARS.

SERVICE PARTS INFORMATION:

REFER TO THE FOLLOWING PART NUMBER WHENEVER ORDERING FIBER PLATES FOR THE DIRECT CLUTCH ASSEMBLY.

PACKAGE DESCRIPTION PART NO.

FIBER PLATES (SMOOTH) 8643741

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

SERVICE MANUAL REFERENCE:

WHENEVER SERVICE TO THE DIRECT CLUTCH ASSEMBLY IS NECESSARY, REFER TO THE THM 125C/HYDRA-MATIC 3T40 UNIT REPAIR SECTION OF YOUR SERVICE MANUAL.

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.

COPYRIGHT 1989 HYDRA-MATIC DIVISION, GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.