A/T - Updated Input Carrier Thrust Washers
88pontiac02Bulletin Number: 88-7-18
Reference Number: 877122
Publish Date: 3/88
Subject: NEW INPUT CARRIER THRUST WASHERS 1988 THM 125/125C (MD9)
Models
Affected:
6000, SUNBIRD, GRAND AM AND FIERO MODELS
BULLETIN COVERS:
There is a new Nibron coating for Batwing and Round Washers used on Input Carrier Pinions..
FIGURE 1 - INPUT CARRIER WITH BATWING AND ROUND WASHERS:
DATE OF PRODUCTION CHANGE: (Figure 1)
Input Carriers with the new Nibron coated Pinion Washers were built into THM 125/125C transaxles starting with Julian Date 355 (December 21, 1987).
SERVICE ACTION:
The Pinion Washers (Round and Batwing) cannot be serviced individually.
The Input Carrier Assembly should be inspected for:
Pinion Damage Pinion Tilt Pinion end play - use a feeler gauge - 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 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.
SERVICE PARTS INFORMATION:
When ordering a new input carrier assembly use the following part number:
Part Number Description
8631681 Input Carrier Assembly Complete
Service Manual Reference:
Refer to service information on the input unit parts contained in the THM 125/125C unit repair section of the service manual.