NIBRON COATED INPUT CARRIER THRUST WASHERS W/125-125C

Model and Year: 1988 CELEBRITY, CAVALIER, CORSICA, BERETTA WITH THM 125/125C TRANSAXLE

Input carriers with the new Nibron coated Pinion Washers entered production in THM 125/125C transaxles starting with Julian Date 355 (December 21, 1987).

The Pinion Washers (Round and Batwing, refer to Figure 1), cannot be serviced individually. When servicing a THM 125/125C transaxle and inspection of the Input Carrier reveals any of the Input Carrier Pinion Washers are worn and/or missing, a new input carrier must be installed. This input carrier with new Nibron coating may be used on all past models.

The Input Carrier Assembly should be inspected for:

Pinion Damage Pinion tilt Pinion end play - use a feeler gage - end play range 0.24 - 0.69mm (0.009" - 0.027").

If Pinion end play is not in this range a new input carrier should be installed.

When ordering a new Input Carrier Assembly use the following part number:

Part No. Description

8631681 Input Carrier Assembly Complete

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.