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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1225 (Automatic Transmission - 2ML70 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Case Extension and Gasket Replacement

Case Extension and Gasket Replacement

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Case Extension and Gasket Replacement
GM1970172Courtesy of GENERAL MOTORS CORP.
Callout Component Name
NOTE: Use Dexron VI transmission fluid only. Failure to use the proper fluid may result in transmission internal damage.

Preliminary Procedures

  1. Remove the rear propeller shaft. Refer to Rear Propeller Shaft Replacement .
  2. Place a suitable drain pan under the transmission.
  3. Fill the transmission with the proper amount of transmission fluid. Refer to Fluid Capacity Specifications and Transmission Fluid Check .
1 Case Extension Bolt (Qty: 6)
NOTE: Refer to Fastener Notice .

Tighten:  56 N.m (41 lb ft)

2 Case Extension
3 Case Extension Gasket