DRIVE LINE RATTLE 2004R/ 200C TRANSMISSION

Beginning late October, 1981, a new rear internal gear and output shaft assembly went into production for the 1982 THM 200C and the THM 200-4R transmissions. The rear internal gear is now pressed onto the output shaft, resulting in a one (1) piece assembly.

The new press fit output shaft assembly will reduce driveline rattle in third gear when the converter clutch is applied on diesel and "S" truck applications.

SERVICE INFORMATION

The press fit output shaft assembly must be serviced as one (1) part. When servicing the 1982 THM 200C, use P/N 8633910. Use P/N 8639016 when servicing the 1982 THM 200-4R. The press fit output shaft assembly can be used on past model THM 200C and THM 200-4R diesel applications.

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.