BURNED FORWARD AND/OR DIRECT CLUTCH (INSTALL NEW P/N)

Model and Year: ALL MODELS WITH THM 400/475 TRANSMISSION

Burned forward and/or direct clutch may be caused by a loose center support bolt. A new design center support bolt has gone into production to help increase torque retention beginning December, 1987 (Julian date 348).

When ordering a new center support package from GMSPO be certain that the new bolt is included with the center support package. The bolt must be installed whenever replacement of the center support is required.

Part No. Part Description

8629916 THM 400/475 Package-Center Support and Race Assembly 8625990 THM 400 Package-Center Support and Race Assembly 8670757 Bolt-Case to Center Support

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.