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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Automatic Transmission - 8L90 (M5U) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Case Extension Assembly Removal

Case Extension Assembly Removal

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
GM3774669Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
1 Automatic Transmission Case Extension Bolt [6x] M10 x 40
2 Automatic Transmission Case Extension - Model Dependent
CAUTION:

Before removing or installing the automatic transmission case extension, place the transmission in a holding fixture with the transmission in a vertical position and the case extension facing up. Failure to do so may result in transmission internal damage.

NOTE:

Ensure the park pawl is not engaged.

3 Output Carrier Thrust Bearing
4 Automatic Transmission Case Extension Seal
Procedure 
NOTE:

The seal is reusable.


Inspect the seal and replace if damaged.