A/T - Updated Bottom Pan with Latex Cellulose Gasket
88chevy05Number: 88-171-7A
Section: 7A
Date: MARCH, 1988
Subject: NEW BOTTOM PAN AND NEW LATEX
COATED CELLULOSE GASKET
Model and Year: 1984-88 CELEBRITY WITH THM 440-T4 TRANSAXLES
FIGURE 1 - THM 440-T4 TRANSAXLE IDENTIFICATION INFORMATION:
FIGURE 2:
TO: ALL CHEVROLET DEALERS
A new transaxle bottom pan and latex coated cellulose gasket entered production on THM 440-T4 transaxles January 5, 1988 (Julian Date 005). The new bottom pan has a continuous raised rib on the pan rail and when used with the latex coated gasket, will result in better sealing and reduction of crushing/splitting out the gasket when the pan bolts are torqued.
When replacement of the bottom pan on a 1984-88 THM 440-T4 transaxle is required use the service package listed below. If the previous pan is used with the new gasket or the new pan is used with a cork gasket, fluid leaks may develop.
SERVICE PARTS INFORMATION:
Service
Part No. Description (Contents)
8662942 Transaxle Bottom Pan Package
(1) Transaxle bottom pan gasket (latex coated cellulose)
(1) Transaxle bottom pan (raised rib)
(1) Chip collector magnet
*8668028 Transaxle Bottom Pan Gasket (latex coated cellulose)
NOTICE: Overhaul Seals and Gaskets Package (#8646975) and Overhaul Repair Complete Package (#8646976) have been updated to include the new latex coated cellulose gasket and the previous latex coated cork gasket. These overhaul packages are used on 1987 and 1988 model THM 440-T4 transaxles.