Lumina V6-191 3.1L (1990)
Band Apply Servo: Technical Service Bulletins
A/T - New Reverse Band Apply Pin Gage
Number:
90-35-7A
Section:
7A
Date:
July 1989
Subject:
NEW REVERSE BAND APPLY PIN GAGE
Model and Year:
1989 A CARS AND 1990 W CARS WITH THM 440-T4/4T60 TRANSAXLES
TO:
ALL CHEVROLET DEALERS
ASSEMBLY COMPONENT CHANGE:
A new reverse band apply pin gage is required for all 1989 and 1990 THM 440-T4/ HYDRA-MATIC 4T60 models. The 1989 and 1990 transaxle
calibrations require a longer reverse band apply selection set. This new gage pin will make the band apply pin selection about 0.080" (2 mm) longer or
two sizes longer than if gage pin J 33382-2 is used.
Figure 1 - Band Apply Pin Selection
