G 10 Van V8-379 6.2L DSL (1987)
Clutch: All Technical Service Bulletins
A/T - New Wave Plate Now Available
Number: 91-186-7A
Section: 7A
Date: February 1991
Corporate Bulletin No.: 077148
Subject:
LOW AND REVERSE CLUTCH
Model and Year:
1987-91 CAPRICE, CAMARO, CORVETTE AND 1987-91 C/K, R/V, S/T TRUCKS, G, M VANS AND 1990-91 L VAN WITH
4L60 AUTOMATIC TRANSMISSION
Figure 2 - Lo And Reverse Clutch Waved Plate
SERVICE INFORMATION:
(Figure 2)
Low and Reverse Clutch failure can be caused by case casting flash interfering with clutch plate travel. A new wave plate is now available which will
alleviate this condition. This new plate can be used to service any Hydra-matic 4L60 transmission produced after February 9, 1987 (Julian Date 040).
When installing the new wave plate, check for any case flash that may be present in the low and reverse grooves, and use a metal file to remove. See
Figure 2 for case location information.
SERVICE PARTS INFORMATION:
Description
New Part
Plate - Low and Reverse (wave)
8676362
