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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Front Drive Axle) >> Repair Instructions >> Differential Case Assembly Disassemble (8.25 Inch Axle) >> Tools Required

Tools Required

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J 22888-D  Side Bearing Remover Kit. See Special Tools .

  1. Remove the differential side bearing by performing the following steps:
    1. Place the differential case in a vise.
    2. Fig 1: Identifying Special Tool J 22888--20A & Differential Side Bearing
      GM680400Courtesy of GENERAL MOTORS CORP.
    3. Install the J 22888-20A  (2) and the J 8107-2  (1) as shown.
    4. Remove the differential side bearings using theJ 22888-20A  .
  2. Remove the differential assembly from the vise.
  3. Fig 2: Identifying Ring Gear Bolts
    GM866503Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The ring gear bolts have left-hand threads.
  4. Remove the ring gear bolts. Discard the bolts.
  5. Fig 3: View Of From Differential Ring Gear Removal
    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.
  6. Remove the ring gear from the differential case.

    Drive the ring gear off with a brass drift if necessary.

  7. Fig 4: Driving Out Pinion Shaft Pin (8.25 Inch Axle)
    GM168052Courtesy of GENERAL MOTORS CORP.
  8. Remove the pinion shaft pin.

    Use a hammer and a drift pin in order to drive out the pin.

  9. Fig 5: View Of Differential & Pinion Shaft
    GM851733Courtesy of GENERAL MOTORS CORP.
  10. Remove the pinion shaft.
  11. Fig 6: Exploded View Of Differential Case
    GM680404Courtesy of GENERAL MOTORS CORP.
  12. Remove the differential pinion gears and the differential side gears by performing the following steps:
    1. Roll the differential pinion gears out of the case with the pinion gear thrust washers.
    2. Remove the differential side gears and the side gear thrust washers.

      Mark the pinion gears and thrust washers top and bottom and the differential side gears and thrust washers left and right.