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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 516 (Front Drive Axle) >> Repair Instructions >> Differential Carrier Assembly Replacement (9.25 inch) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the steering wheel all the way to the left.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Place jack or utility stands at the rear end of the vehicle.
  4. Remove the engine protection shield. Refer to Engine Shield Replacement .
  5. Remove the oil pan skid plate, if equipped. Refer to Oil Pan Skid Plate Replacement (1500 with RPO NZZ) , Oil Pan Skid Plate Replacement (2500/3500 with RPO NZZ) .
  6. Drain the differential carrier assembly. Refer to Front Axle Lubricant Replacement .
  7. Disconnect the front propeller shaft from the differential carrier assembly. Refer to Front Propeller Shaft Replacement .
  8. Remove the relay rod. Refer to Relay Rod Replacement .
  9. Support the differential carrier assembly with a transmission jack or equivalent.
    10. Fig 1: View Of Wheel Drive Shaft Inboard Flange Bolt - Front Drive Axle
    GM763646Courtesy of GENERAL MOTORS COMPANY
  10. Remove the wheel drive shaft inboard flange bolts from the inner axle shaft, both sides.
    11. Fig 2: Identifying Electric Motor Actuator Electrical Connector - Front Drive Axle (8.25 S4WD and 9.25 Axles)
    GM834234Courtesy of GENERAL MOTORS COMPANY
  11. Disconnect the electrical connector from the front axle actuator, S4WD axle only.
    12. Fig 3: Identifying Wire Harness From Inner Axle Shaft Housing (S4WD Axle Only)
    GM924830Courtesy of GENERAL MOTORS COMPANY
  12. Disconnect the wire harness from the inner axle shaft housing, S4WD axle only.
    13. Fig 4: Wire Harness & Differential Carrier Assembly (S4WD Axle Only)
    GM924846Courtesy of GENERAL MOTORS COMPANY
  13. Disconnect the wire harness from the differential carrier assembly, S4WD axle only.
    14. Fig 5: View Of Vent Hose To Differential Carrier Assembly
    GM834272Courtesy of GENERAL MOTORS COMPANY
  14. Disconnect the vent hose from the differential carrier assembly.
    15. Fig 6: View Of Inner Axle Housing Nuts
    GM834241Courtesy of GENERAL MOTORS COMPANY
  15. Remove the inner axle housing nuts and washers from the bracket.
    16. Fig 7: View Of Differential Carrier Upper Mounting Bolt
    GM834276Courtesy of GENERAL MOTORS COMPANY
  16. Remove the differential carrier assembly upper mounting bolt and the nut.
  17. Pivot the differential carrier assembly forward and down on the lower mount bolt while it is being supported by the transmission jack.
  18. Secure the differential carrier assembly to the jack.
    19. Fig 8: View Of Differential Carrier Lower Mounting Bolt
    GM834278Courtesy of GENERAL MOTORS COMPANY
  19. Remove the differential carrier assembly lower mounting bolt and the nut.
  20. Remove the differential carrier assembly.
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