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Disassemble 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.
NOTE: Group and mark the shims together as originally removed. If you remove or replace the ring and pinion gearset, perform the bearing preload, backlash, and gear tooth contact pattern check in order to ensure proper contact of the gears. If you reinstall or replace the differential carrier without replacing any other component (i.e. pinion and ring gear set, bearings. etc.) then you may reinstall the carrier with the original shims in their original locations. Always perform a gear tooth contact pattern check, even when you remove only the carrier.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the spare tire. Refer to Tire and Wheel Removal and Installation .
  3. Remove the rear axle shafts. Refer to Rear Axle Shaft Replacement .
    4. NOTE: The following steps only apply to the 8.0 inch axle. For the 8.6 inch axle, go to step 10.
    NOTE: Do not remove the bearing cap bolts at this time.
  4. Loosen the bearing cap bolts.
    5. Fig 1: View Of J 45222 & Axle Housing
    GM788484Courtesy of GENERAL MOTORS CORP.
  5. Install the J 45222:  spreader on the axle housing.
    6. Fig 2: J 8001-1, J 8001-2, J 34178, & J 8001-3
    GM788485Courtesy of GENERAL MOTORS CORP.
  6. Install the J 8001-1 (2), the J 8001-2 (3), the (4, 6), and the J 8001-3 (5).
  7. Preload the J 8001-3 (5) approximately 3/4 of a turn clockwise.
  8. Set the dial indicator J 8001-3 (5) to ZERO.
    9. NOTE: Spread the housing just enough to remove the differential assembly. Do not spread the housing more than 1.02 mm (0.040 in).
  9. Using the J 34178:  adapter, spread the axle housing by turning the clevis screw and observing the J 8001-3.
    10. Fig 3: View Of Bearing Caps Bolts
    GM788491Courtesy of GENERAL MOTORS CORP.
    NOTE: Mark the bearing caps left and right.
  10. Remove the bearing caps bolts and the caps.
    11. Fig 4: J 45222
    GM788480Courtesy of GENERAL MOTORS CORP.
    WARNING: To prevent personal injury and/or component damage, support the differential case when removing the case from the axle housing. If the case is not supported, the differential case could fall and cause personal injury or damage to the differential case.
    CAUTION: When removing the differential case from the axle housing, do not damage the cover gasket surface. If the cover gasket surface is damaged, lubricant may leak from the axle and cause premature failure of the axle assembly.
  11. Using a pry bar and a block of wood, remove the differential from the axle housing.
    12. NOTE: Steps 13 and 14 apply only to the 8.0 inch axle. For the 8.6 inch axle, proceed to step 15.
    NOTE: Mark the cups and shims left and right and in the proper order as necessary. Place the cups and the shims with the bearing caps.
  12. Remove the bearing cups, the shims, and the spacers as necessary.
  13. Remove the J 8001-1, the J 8001-2, the J 34178:  adapter, and the J 8001-3.
  14. Remove the J 45222:  spreader.
  15. If servicing the differential side bearings, refer to Differential Bearing Replacement (8.0 Inch Axle)  or Differential Bearing Replacement (8.6 Inch Axle) .
  16. If servicing the differential ring drive pinion and gear, refer to Drive Pinion and Ring Gear Replacement .
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