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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 900 (Rear Drive Axle) >> Repair Instructions >> Differential Overhaul (10.5 Inch Axle) >> Disassembly Procedure

Disassembly Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the differential side bearings by performing the following steps:
    1. Place a block of wood on each side of the differential case before installing the differential case into the vise.

      Install the differential assembly into a vise.

    2. Install the J 8107-3  and the J 22888-20A  onto the differential side bearing. See Special Tools .
    3. Remove the differential side bearings using the J 22888-20A  . See Special Tools .
    2. Fig 1: Ring Gear Bolts (10.5 Inch Axle)
    GM739940Courtesy of GENERAL MOTORS CORP.
  2. Remove the ring gear bolts.
    3. NOTE: Refer to Ring Gear Removal Notice .
  3. Remove the ring gear from the differential case.

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

  4. Separate the differential case assembly.
    5. Fig 2: Differential Pinion Gears
    GM739941Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If the differential pinion gears, the differential side and the thrust washers are to be reused, mark the components so they can be re-installed in their original location in the differential case.
  5. Remove the following from the differential case:
    • The thrust washers
    • The differential pinion gears
    • The differential pinion spider
    6. Fig 3: Differential Side Gears
    GM739943Courtesy of GENERAL MOTORS CORP.
  6. Remove the differential side gears.
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