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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Drive Axle >> Repair Instructions >> Drive Pinion and Ring Gear Replacement >> Removal Procedure

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation .
  3. Remove the brake calipers. Refer to Rear Brake Caliper Replacement .
  4. Remove the brake rotors. Refer to Rear Brake Rotor Replacement .
  5. Remove the axle shafts. Refer to Rear Axle Shaft Replacement .
  6. Remove the differential. Refer to Differential Replacement .
  7. Remove the pinion yoke and the seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement .
    8. Fig 1: Installing J 22536 Or J 44421 On Pinion
    GM683960Courtesy of GENERAL MOTORS CORP.
  8. Install the J 22536  as shown. See Special Tools .

    Ensure that the J 22536  is firmly seated on the pinion. See Special Tools .

  9. Drive the pinion out using the J 22536  and a hammer. See Special Tools .

    Strike the J 22536  slowly. See Special Tools . Do not let the pinion fall out of the rear axle housing.

    10. Fig 2: View Of Collapsible Spacer & Pinion
    GM9731Courtesy of GENERAL MOTORS CORP.
  10. Remove the collapsible spacer from the pinion. Discard the spacer.
  11. Remove the pinion bearings and the cups. Refer to Drive Pinion Bearings Replacement .
    12. Fig 3: Identifying Ring Gear Bolts
    GM866503Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The ring gear bolts have left-hand threads.
  12. Remove the ring gear bolts. Discard the bolts.
    13. Fig 4: Removing Ring Gear From Differential
    GM866502Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not pry the ring gear from the differential case. Prying the ring gear from the differential case may cause damage to the ring gear and/or the differential case.
  13. Remove the ring gear from the differential. Drive the gear off with a brass drift if necessary.
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