Celebrity V6-191 3.1L (1990)
Clutch: All Technical Service Bulletins
A/T - New Output Shaft/Bearing and Clutch Assembly
Number:
90-196-7A
Section:
7A
Date:
April 1990
Corporate Bulletin No.: 077111
Subject:
NEW OUTPUT SHAFT/BEARING AND 3RD ROLLER CLUTCH ASSEMBLY FOR INCREASED LUBRICATION FLOW
Model and Year:
1990 A, W CAR WITH 4T60 (THM 440-T4) AND THM F7 AUTOMATIC TRANSMISSION
Figure 1 - Previous And New Output Shaft/Bearing
Figure 2
TO:
ALL CHEVROLET DEALERS
This bulletin covers new output shaft/bearing and 3rd roller clutch assembly for increased lubricant flow. The new parts were designed to help keep the
3rd roller clutch and input sprag assemblies running cooler when overrunning. For this change to be implemented, the following parts were modified:
(Figure 1 and 2.)
-
The new output shaft bearing with only a single row of needle bearings instead of a double row. This makes for an easier path for the oil flow to
the 3rd roller clutch and input sprag assemblies.
