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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 372 (Front Drive Axle) >> Repair Instructions >> Differential Carrier Assembly Replacement (4WD 1500 Hybrid) >> Removal Procedure

Removal Procedure

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  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disable the high voltage system. Refer to High Voltage Disabling .
  3. Remove the lower control arm crossmember. Refer to Drivetrain and Front Suspension Frame Front Crossmember Replacement (1500, 2500 2WD) , Drivetrain and Front Suspension Frame Front Crossmember Replacement (2500 4WD) .
    4. NOTE:

    If removing the differential carrier assembly to service other components, it is not necessary to drain the differential carrier.

  4. Drain the differential carrier. Refer to Front Axle Lubricant Replacement .
    5. Fig 1: Differential Carrier Wiring Harness
    GM1752191Courtesy of GENERAL MOTORS CORP.
  5. Remove the wiring harness from the differential carrier, if needed.
    6. Fig 2: Front Axle Actuator Electrical Connector
    GM834234Courtesy of GENERAL MOTORS CORP.
  6. Remove the electrical connector from the actuator motor.
    7. Fig 3: Differential Carrier Vent Hose
    GM1751853Courtesy of GENERAL MOTORS CORP.
  7. Remove the differential carrier vent hose.
    8. Fig 4: Wheel Drive Shaft Inboard Flange Bolt - Front Drive Axle
    GM763646Courtesy of GENERAL MOTORS CORP.
  8. Remove the wheel drive shaft mounting bolts.
  9. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  10. Support the differential carrier with a transmission jack.
    11. NOTE:

    Loosen the upper steering rack bolts.

  11. Remove the lower steering rack bolts. Refer to Steering Gear Replacement (Recirculating Ball Without LMM) , Steering Gear Replacement (Two Mode Hybrid) , Steering Gear Replacement (Hydraulic Rack and Pinion) .
    12. Fig 5: Right Differential Carrier Mounting Nuts And Washers
    GM1751768Courtesy of GENERAL MOTORS CORP.
  12. Remove the right differential carrier mounting nuts and washers.
    13. Fig 6: Left Differential Carrier Mounting Bolts
    GM1751779Courtesy of GENERAL MOTORS CORP.
  13. Remove the left differential carrier mounting bolts.
  14. Remove the right upper steering gear mounting bolt.
    15. Fig 7: Differential Carrier Assembly
    GM1751840Courtesy of GENERAL MOTORS CORP.
  15. With the aid of an assistant, pivot the differential carrier forward and down to remove the it from the vehicle.
  16. Remove the differential carrier assembly from the vehicle.
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