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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 482 (Rear Drive Axle) >> Repair Instructions >> Drive Pinion Flange/Yoke and/or Oil Seal Replacement >> Installation Procedure

Installation Procedure

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    Fig 1: Installing Pinion Oil Seal
    GM651744Courtesy of GENERAL MOTORS COMPANY
  1. Using the J 44414  installer, install a new pinion oil seal.
  2. Apply sealant to the splines of the pinion yoke. Refer to Adhesives, Fluids, Lubricants, and Sealers .
    3. Fig 2: Identifying Drive Flange, Washer & Nut
    GM2139124Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Pinion Flange/Yoke Installation Caution .

    NOTE:

    Align the reference marks and install the drive pinion yoke.

  3. Using a soft faced hammer, install the drive flange (1) onto the pinion shaft until a few treads show through the drive flange (1).
  4. Install the washer (2) and the nut (3).
    5. Fig 3: Holding Pinion Yoke With Special Tool
    GM661080Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.

  5. Using and holding the J 8614-01  holder/remover, tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearing.
    6. Fig 4: Measuring Pinion Rotating Torque
    GM661077Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Compare this measurement with the rotating torque prior to removing the drive flange.

  6. Using an inch-pound torque wrench, tighten the nut in small increments, as needed, until the rotating torque is 0.40-0.57 N.m (3- 5 lb in) greater than the rotating torque recorded during removal.
    7. NOTE:

    Recheck the rotating torque and adjust if necessary.

  7. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated.
  8. Install the propeller shaft assembly. Refer to Rear Propeller Shaft Replacement .
    9. NOTE:

    Step 9 is for those vehicles that are equipped with the 10.5 inch axle.

  9. Install the axle shafts. Refer to Rear Axle Shaft and/or Gasket Replacement .
    10. NOTE:

    Step 10 is for those vehicles that are equipped with the 8.6 or 9.5 inch axle.

  10. Install the rear brake rotors. Refer to Rear Brake Rotor Replacement (1500 Series) , Rear Brake Rotor Replacement (2500 Series) .
  11. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation .
  12. Inspect and add axle lubricant to the axle housing, if necessary. Refer to Rear Axle Lubricant Level Inspection (8.6, 9.5 LD Axle) , Rear Axle Lubricant Level Inspection (10.5 Inch Axle) .
  13. Remove the support and lower the vehicle.
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