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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 920 (Automatic Transmission - ALLISON - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Instructions >> Holding Fixture Installation >> Tools Required

Tools Required

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

J 44723  Transmission/Stand Adapter Plate. See Special Tools .

    Fig 1: PTO Cover, Bolts & Gasket
    GM1914750Courtesy of GENERAL MOTORS CORP.
    CAUTION: The torque converter must be held to the torque converter housing by a retaining device such as shipping brackets. Without the retaining device, the torque converter may slide forward, disengaging the oil pump, or may fall completely out of the transmission causing personal injury and/or property damage.
    CAUTION: The 1000 Series™ transmission dry weight is approximately 150 kg (330 lb). To help avoid personal injury and/or property damage: Use caution when installing, removing, or moving the transmission. Get help when lifting the transmission. Assistance from a hoist or another person may be required. Ensure that lifting equipment can properly support the transmission.
  1. Position the transmission on the work table so that the transmission is resting on the oil pan.
  2. Remove 12 power take-off (PTO) cover bolts (3)
  3. Remove 2 PTO covers (2).
  4. Remove the PTO gaskets (1).
  5. Fig 2: Transmission Mounted On Holding Fixture
    GM1914749Courtesy of GENERAL MOTORS CORP.
  6. Install J 44723  onto the repair stand. See Special Tools .
  7. Attach a sling to the transmission.
  8. Attach a hoist to the sling.
  9. Raise the transmission to adapter plate J 44723  . See Special Tools .
  10. CAUTION: If the transmission is not secured properly to the adapter plate, the transmission could fall. To help avoid personal injury and/or property damage: Use at least 5 bolts to support the transmission. Use M10 x 1.5 bolts with 19-25 mm (3/4-1 inch) thread engagement. If the proper bolt is not used, the PTO bolt holes may be damaged.
  11. Secure the transmission to J 44723  using either of the PTO mounting pads as the attachment point. See Special Tools .
  12. Remove the sling from the transmission.