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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Rear Drive Axle) >> Repair Instructions >> Drive Pinion Flange/Yoke and/or Oil Seal Replacement (10.5 Inch Axle) >> Installation Procedure

Installation Procedure

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    Fig 1: View Of Pinion Gear Oil Seal & Installation Tool
    GM651744Courtesy of GENERAL MOTORS CORP.
  1. Using the J 44414  , install a new pinion oil seal. See Special Tools .
  2. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the splines of the pinion yoke.
  3. Install the drive pinion yoke.

    Align the marks made during removal.

    4. NOTE: Refer to Pinion Flange/Yoke Installation Notice .
  4. Using a soft faced hammer, tap the drive pinion yoke onto the pinion shaft until a few of the threads show through the yoke.
  5. Install the washer and a new pinion nut.
    6. Fig 2: Holding Pinion Yoke With Special Tool
    GM661080Courtesy of GENERAL MOTORS CORP.
  6. Install the J 8614-01  onto the pinion yoke as shown.
    7. NOTE: Refer to Fastener Notice .
    IMPORTANT: If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.
  7. Tighten the pinion nut while holding the J 8614-01  .

    Tighten:  Tighten the nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.

    8. Fig 3: Measuring Pinion Rotating Torque
    GM661077Courtesy of GENERAL MOTORS CORP.
  8. Using an inch-pound torque wrench, measure the rotating torque of the pinion. Compare this measurement with the rotating torque recorded during removal.

    Tighten:  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.

  9. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated. Recheck the rotating torque and adjust if necessary.
  10. Install the propeller shaft assembly. Refer to Rear Propeller Shaft Replacement .
  11. Install the axle shafts. Refer to Rear Axle Shaft and/or Gasket Replacement .
  12. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation .
  13. Inspect and add axle lubricant to the axle housing, if necessary. Refer to Rear Axle Lubricant Level Inspection (8.6 Inch Axle)  or Rear Axle Lubricant Level Inspection (9.5 Inch LD Axle) .
  14. Remove the support and lower the vehicle.
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