At the start of production for 1985 all THM 125C transaxles are being built with a new forward and direct clutch assembly (see Figures 1 & 2).
The 1985 production forward and direct clutch assemblies are not interchangeable with the 1984 or prior model year forward and direct clutch assemblies. See Figures 1 & 2 for identification.
For 1984 and past model service, a new forward and direct clutch housing service assemblies are now available (see Figures 4 & 5). The direct clutch housing service package, Part Number 8653978, will contain the following:
Direct clutch housing assembly
Direct clutch piston assembly
Direct clutch piston inner, outer and centre seals
Intermediate band assembly
The forward clutch housing service package, Part Number 8653977, will contain the following:
Forward clutch housing assembly
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.