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Home >> Hummer >> 2008 >> H3 Luxury, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 285 (Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Case Extension Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Case Extension, Bolts & O-Ring Seal
    GM656358Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Support the transmission with a transmission jack.
  3. Place a drain pan under the vehicle.
  4. Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .
  5. Remove the transmission mount. Refer to Transmission Mount Replacement (2WD)  or Transmission Mount Replacement (4WD) .
  6. Remove the case extension bolts (1).
  7. Remove the case extension (2).
  8. Remove and discard the case extension O-ring seal (3).
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