Case Extension Assembly Installation

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Case Extension Assembly And Bolt Tightening Sequence

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Automatic Transmission Case Extension Seal NOTE: Install a NEW seal. Do NOT reuse the old seal.
2	Automatic Transmission Case Extension
3	Automatic Transmission Case Extension Bolt (Qty: 6) CAUTION: Refer to Fastener Caution . Procedure Tighten in sequence shown. Tighten 55 N.m (41 lb ft)