A/T - Updated Carrier Thrust Washers

88chevy05

Number: 88-156-7A

Section: 7A
Date: MARCH, 1988

Subject: NEW INPUT CARRIER THRUST WASHERS


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

TO: ALL CHEVROLET DEALERS


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

FIGURE 1 - INPUT CARRIER WITH BATWING AND ROUND WASHERS:

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 - 0.69 mm (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