gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

All Technical Service Bulletins for Clutch:|88T927A > < A/T - THM 400 New Forward and Direct Clutch Assemblies
Page 1
background image

Clutch: All Technical Service Bulletins
A/T - Burned Forward/Direct Clutch

Number:

88-155-7A

Section:

7A

Date:

MARCH, 1988

Subject: BURNED FORWARD AND/OR DIRECT CLUTCH

Model and Year:

ALL MODELS WITH THM 400/475 TRANSMISSION

TO:

ALL CHEVROLET DEALERS

Burned forward and/or direct clutch may be caused by a loose center support bolt. A new design center support bolt has gone into production to help
increase torque retention beginning December, 1987 (Julian date 348).

When ordering a new center support package from GMSPO be certain that the new bolt is included with the center support package. The bolt must be
installed whenever replacement of the center support is required.

Part No.

Part Description

8629916

THM 400/475 Package-Center Support and Race
Assembly

8625990

THM 400 Package-Center Support and Race
Assembly

8670757

Bolt-Case to Center Support

All Technical Service Bulletins for Clutch:|88T927A > < A/T - THM 400 New Forward and Direct Clutch Assemblies