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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 339 (Rear Drive Axle) >> Repair Instructions >> Rear Axle Hub, Bearing, Cup, and/or Seal Replacement >> Removal Procedure

Removal Procedure

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NOTE:
  • The wheel speed sensor ring is NOT serviced separately. The hub and wheel speed senor ring are serviced as an assembly.
  • The wheel hub seal must be replaced anytime the wheel hub assembly is removed from the axle housing.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
    3. NOTE:

    In the following service procedure, it is not necessary to remove the brake caliper from the bracket.

  3. Remove the brake caliper bracket. Refer to Rear Brake Caliper Bracket Replacement (1500 Series) , Rear Brake Caliper Bracket Replacement (2500 Series) .
  4. Remove the axle shaft. Refer to Rear Axle Shaft and/or Gasket Replacement .
    5. Fig 1: Axle Nut Retaining Ring
    GM685935Courtesy of GENERAL MOTORS CORP.
  5. Remove the axle nut retaining ring.
    6. Fig 2: Adjuster Nut Lock Key
    GM685937Courtesy of GENERAL MOTORS CORP.
  6. Remove the key.
    7. Fig 3: Adjusting Nut And Special Tool
    GM685938Courtesy of GENERAL MOTORS CORP.
  7. Using the J 2222-C  wrench, and loosen the adjusting nut.
    8. Fig 4: Adjusting Nut
    GM685939Courtesy of GENERAL MOTORS CORP.
  8. Remove the adjusting nut.
    9. Fig 5: Wheel Hub And Axle Housing
    GM685940Courtesy of GENERAL MOTORS CORP.
    NOTE:

    If the oil seal remains on the axle hub, remove the seal using a suitable seal removal tool.

  9. Remove the hub from the axle housing.
  10. Remove the rotor, if necessary. Refer to Rear Brake Rotor Replacement (1500 Series) , Rear Brake Rotor Replacement (2500 Series) .
  11. Using a suitable seal removal tool, remove the oil seal from the wheel hub.
    12. Fig 6: Inner Hub Bearing
    GM666251Courtesy of GENERAL MOTORS CORP.
  12. Remove the inner hub bearing.
    13. Fig 7: Inner Hub Bearing Cup
    GM768683Courtesy of GENERAL MOTORS CORP.
  13. Using a brass drift and a hammer, remove the inner hub bearing cup.
    14. Fig 8: Wheel Hub Retaining Ring
    GM666208Courtesy of GENERAL MOTORS CORP.
  14. Remove the retaining ring from the wheel hub.
    15. Fig 9: Outer Hub Bearing & Bearing Cup
    GM695766Courtesy of GENERAL MOTORS CORP.
  15. Using the J 24426  installer (2) and the J 8092  handle (1), remove the outer hub bearing and bearing cup.
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