6000 V6-173 2.8L (1988)
Differential: Technical Service Bulletins
A/T - New Final Drive Assembly
Bulletin Number:
88-7-35
Reference Number:
877131
Publish Date:
6/88
Subject:
SERVICE AND PARTS INFORMATION ON A NEW FINAL DRIVE ASSEMBLY
Models
Affected:
1988 6000, SUNBIRD, GRAND AM AND LeMANS EQUIPPED WITH 125C TRANSMISSION
FIGURE 2
DESCRIPTION OF CHANGE:
(Refer to Figure 2)
New style Final Drive Assemblies (678) for some 1988 vehicles equipped with a THM 125C transaxle having 3.33, 3.06, 2.84 final drive ratios. These
new final drive assemblies have larger differential side gears (687) and larger differential pinion gears and a smaller diameter cross shaft which is black
in color. The new style Final Drive Assemblies are going into production due to the increased use of higher torque engine calibrations.