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Home >> GMC >> 2006 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 784 (Automatic Transmission - 4L80-E/4L85-E - Introduction (2 Of 2)) >> Repair Instructions >> Transmission Extension Housing Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 GMC Yukon XL, 2006 Chevrolet Suburban, and 2006 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Transmission Case Extension
    GM747478Courtesy of GENERAL MOTORS CORP.
  1. Support the transmission with a transmission jack.
  2. Place a drain pan under the vehicle.
  3. Remove the propeller shaft. Refer to Propeller Shaft Replacement - Rear in Propeller Shaft.
  4. Remove the transmission mount. Refer to Transmission Mount Replacement .
  5. Remove the case extension bolts (3).
  6. Remove the case extension (1).
  7. Remove and discard the case extension O-ring seal (2).