SUBJECT: NEW DESIGN INTERMEDIATE BAND AND DIRECT CLUTCH ASSEMBLY
VEHICLES AFFECTED: THOSE VEHICLES EQUIPPED WITH THM 125 & 125C
TRANSMISSIONS
BEGINNING MID-AUGUST, 1981, THE FOLLOWING 1982 THM 125C TRANSMISSION
MODELS BF, BL, PL, PK, PI, CT, LE, CL, CV, CD, CS, OP, HM, HW, AND HS,
WERE BUILT WITH A NEW (WIDER) DESIGN INTERMEDIATE BAND ASSEMBLY,
SERVICE PART NO. 8637623 AND A NEW DESIGNED DIRECT CLUTCH HOUSING AND
DRUM ASSEMBLY, SERVICE PART NO. 8637976. SEE FIGURE 1. THE NEW DESIGN
DIRECT CLUTCH HOUSING HAS A WIDER SURFACE FINISH AREA ON THE DRUM
OUTSIDE DIAMETER TO ACCOMMODATE THE NEW WIDER INTERMEDIATE BAND
ASSEMBLY.
THE NARROW DESIGN DIRECT CLUTCH HOUSING ASSEMBLY (SERVICE PART NO.
8631928) CAN ONLY BE USED WITH THE NARROW DESIGN INTERMEDIATE BAND
ASSEMBLY (SERVICE PART NO. 8631030). DO NOT USE THE NARROW DESIGN
DIRECT CLUTCH HOUSING ASSEMBLY WITH THE WIDER DESIGN INTERMEDIATE
BAND ASSEMBLY OR INTERFERENCE WILL RESULT.
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.