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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Front Drive Axle >> Repair Instructions >> Front Differential Assembly Replacement >> Removal Procedure

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the engine skid plate. Refer to Engine Shield Replacement .
  3. Remove the oil pan skid plate. Refer to Oil Pan Skid Plate Replacement .
  4. Remove the transfer case shield. Refer to Transfer Case Shield Replacement .
  5. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  6. Drain the front drive axle. Refer to Front Axle Lubricant Replacement .
  7. Remove the front wheel drive shafts. Refer to Wheel Drive Shaft Replacement
  8. Remove the crossmember. Refer to Crossmember Replacement
    9. NOTE: Use tie straps to secure the front differential assembly to the transmission jack stand.
  9. Using an adjustable transmission jack stand, support the front differential assembly.
  10. Remove the vent tube from the front differential assembly.
    11. Fig 1: Identifying Electrical Connector For Electronic Locking Differential
    GM2069649Courtesy of GENERAL MOTORS CORP.
    NOTE: Steps 11 and 12 are for those vehicles equipped with the electronic locking differential.
  11. Remove the electronic locking differential electrical connector from the right frame rail.
  12. Disconnect the electrical connector (1) for the electronic locking differential.
    13. Fig 2: Identifying Left And Right Mounting Bolts For Front Differential Assembly
    GM2069646Courtesy of GENERAL MOTORS CORP.
  13. Remove the left and right mounting bolts (1) for the front differential assembly.
  14. Remove the front differential assembly (2) from the vehicle.
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