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Home › Hummer › 2010 › H3 Base, Standard › Repair and Diagnosis › External Pages › Different car › Section 79 (Front Drive Axle) › Repair Instructions › Front Differential Case Disassemble › Disassembly Procedure

Disassembly Procedure

WARNING: This page is about a different car, the 2010 GMC Canyon and 2010 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Place the differential case in a vise.
    2. Fig 1: Removing Differential Side Bearing
    GM680400Courtesy of GENERAL MOTORS CORP.
  2. Install the J 22888-20A  (2) and the J 8107-2  (1) as shown. See Special Tools .
  3. Remove the differential side bearings using the J 22888-20A  and the J 8107-2  . See Special Tools .
    4. Fig 2: View Of Ring Gear Bolts
    GM1306069Courtesy of GENERAL MOTORS CORP.
    NOTE: The ring gear bolts have left-handed threads.
  4. Remove the ring gear bolts.
    5. CAUTION: 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.
    Fig 3: Removing Ring Gear
    GM1306072Courtesy of GENERAL MOTORS CORP.
  5. Remove the ring gear from the differential case.

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

    6. Fig 4: View Of Pinion Shaft Lock Bolt
    GM851727Courtesy of GENERAL MOTORS CORP.
  6. Remove the pinion shaft lock bolt.
    7. Fig 5: View Of Differential And Pinion Shaft
    GM851733Courtesy of GENERAL MOTORS CORP.
  7. Remove the pinion shaft.
    8. Fig 6: Exploded View Of Differential Case
    GM680404Courtesy of GENERAL MOTORS CORP.
  8. Remove the differential pinion gears and the differential side gears.
    1. Mark the pinion gears top and bottom and the differential side gears left and right.
    2. Roll the differential pinion gears out of the case with the pinion thrust washers.
    3. Remove the differential side gears and the side gear thrust washers.
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