Single Use Fasteners and Components

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Automatic Transmission Case Extension Seal

Fig 1: Exploded View Of Case Extension Assembly Components With Tightening Sequence (AWD)
Courtesy of GENERAL MOTORS COMPANY

Automatic Transmission Case Extension Seal (1) - Install NEW

NOTE:
The rear extension lube oil seal is not to be used on 4wd, as it is for 2wd truck only.
Grease the inner part of the output shaft seal where the output shaft rides before installing the extension onto the transmission. Adhesives, Fluids, Lubricants, and Sealers

CAUTION:

Before installing the transmission case extension to the transmission case, make certain all internal transmission components including the stator shaft support assembly and output carrier are in place. Failure to do so may result in damage to the transmission.

Automatic Transmission Case Extension (2) - Install
Automatic Transmission Case Extension Bolt (3) - Install and hand tighten [6x]

CAUTION:

Refer to Fastener Caution

Automatic Transmission Case Extension Bolt (3) - Tighten in sequence [6x]58 N.m (43 lb ft)