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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1035 (Automatic Transmission - ALLISON - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Information >> Stator Shaft Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Oil Pump Cover
    GM1217524Courtesy of GENERAL MOTORS CORP.
  1. Position the oil pump cover (2) on the work table so that the rear hub is facing down.
  2. Align the stator shaft with the oil pump cover so that the stator shaft is centered over the oil pump cover and the rear of the stator shaft is facing down.
    3. Fig 2: Aligning Stator Shaft Holes With Fluid Passage
    GM1217048Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The arrows on the drawing indicate the holes that must be aligned.
  3. Rotate the stator shaft (1) until the lowest and smallest hole in the stator shaft is aligned with the fluid passage (2).
  4. Gently tap the stator shaft into the oil pump cover until the oil pump cover holds the ground sleeve in a vertical position.
    5. Fig 3: Installing J 43765-1 Onto Stator Shaft
    GM1217632Courtesy of GENERAL MOTORS CORP.
  5. Align J 43765-1 protector (1) so that the lip of the tool is downward.
  6. Install J 43765-1 protector (1) onto the stator shaft.
    7. Fig 4: Locating J 43765-3 Into Rear Hub Of Oil Pump Cover Assembly
    GM1217047Courtesy of GENERAL MOTORS CORP.
  7. While holding J 43765-1 protector (3) in place, turn over the oil pump cover assembly (2) and place J 43765-1 on a press.
  8. Install J 43765-3 installer (1) into the rear hub of the oil pump cover assembly (2).
  9. Press on J 43765-3 installer (1) until the stator shaft seats.
    10. Fig 5: Checking Total Indicated Runout (TIR) Of Stator Shaft
    GM1217049Courtesy of GENERAL MOTORS CORP.
  10. Check the total indicated runout (TIR) of the stator shaft as follows:
    1. Install the oil pump cover assembly (1) in a lathe, clamping on dimension D.
    2. Use a dial indicator, to make sure the oil pump cover surface C is square with the dimension D.
    3. Check the TIR along the stator shaft axis B at the stator shaft pitch diameter A.

      Specification:  The TIR must not exceed 0.20 mm (0.008 in).

    4. Remove the oil pump cover assembly from the lathe.
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