Safari Van M V6-262 4.3L VIN Z TBI (1990)
Clutch: All Technical Service Bulletins
A/T - New Low and Reverse Clutch and Plate Dimensions
GMC NUMBER:
90-7A-54
GROUP:
7A Manual Transmission
DATE:
April, 1990
CORPORATE
NUMBER:
077107R
SUBJECT:
NEW LOW AND REVERSE CLUTCH SUPPORT AND SELECTIVE PLATE DIMENSIONS
MODELS:
ALL 1990 TRUCKS AND VANS W/4L60 (700-R4)
BULLETIN COVERS:
A dimensional change in the low and reverse clutch support and its selective plates. The thickness of the low and reverse clutch support has increased
while the thickness of the selective plates has decreased. Three selective plates are available.
Figure 1 - THM 700-R4/HYDRA-MATIC 4L60 Transmission Identification Information
DATE OF PRODUCTION CHANGE:
(See Figure 1)
Production changes occurred in two phases which are shown below.
Figure 2 - Measuring Low And Reverse Clutch Support