Ciera V6-173 2.8L VIN W FI (1986)
Clutch: All Technical Service Bulletins
A/T - THM 125C New Forward Clutch Assembly
SUBJECT
1985 - 1987 THM 125C TRANSAXLE (MD9)
NUMBER: 87-T-23
NEW FORWARD CLUTCH ASSEMBLY AND NEW LO AND REVERSE CLUTCH ASSEMBLY
DATE:
May 14, 1987
MODELS/YEARS
1985-87 CUTLASS CIERA, FIRENZA AND
SECTION: 7A
CALAIS MODELS
Bulletin Covers:
New forward clutch assembly, including: a new housing, new piston, new selective backing plates, and an additional wave plate for improved neutral to
drive shift feel.
New lo and reverse clutch housing and lo and reverse clutch pack assembly, including: a new housing, new piston, two wave plates, and selective
backing plates for improved neutral to reverse shift feel.
FIGURE 1 - THM 125/125C TRANSAXLE IDENTIFICATION INFORMATION
Date of Change:
(Figure 1)
The new forward clutch assembly implemented July 3, 1986, Julian Date 184, and the new lo and reverse clutch assembly implemented July 8, 1986,
Julian Date 189, for all models of the 1987 THM 125/125C.
Service Action:
1985 and/or 1986 Model Year
The neutral to drive package can be used to service a 1985 or 1986 (before Julian Date 184) THM 125C transaxle exhibiting a harsh drive engagement
by replacing the forward clutch with the new forward clutch assembly.
The neutral to reverse package can be used to service a 1985 or 1986 (before Julian Date 189) THM 125C transaxle exhibiting a harsh reverse
engagement by replacing the lo and reverse clutch assembly with the new lo and reverse housing assembly, and new lo and reverse clutch pack assembly.
(The lo and reverse clutch pack assembly contains both wave plates, the steel and compositioned-faced plates, and the correct selective backing plate.)
1986 and/or 1987 Model Year
When servicing the forward and/or lo and reverse clutch assemblies on a 1986 (after Julian Date 184) or 1987 THM 125C transaxle, it is important to