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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1612 (Rear Drive Axle) >> Repair Instructions >> Drive Pinion and Ring Gear Replacement (8.6 Inch, 9.5 Inch, 11.5 Inch Axles) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle. Refer to JACKING AND LIFTING .
  2. Remove the differential assembly. Refer to Differential Replacement (8.6 Inch, 9.5 Inch Axles)  or Differential Replacement (9.75 Inch Axle)  or Differential Replacement (10.5 Inch, 11.5 Inch Axle) .
  3. Remove the pinion yoke and the oil seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement (All Except 9.75 Inch Axle)  or Drive Pinion Flange/Yoke and/or Oil Seal Replacement (9.75 Inch Axle) .
  4. Install the J 22536,  8.6 inch or 9.5 inch axle, or the J 44421,  11.5 inch axle as shown.

    Ensure that the J 22536  or the J 44421  is firmly seated on the pinion.

  5. Drive the pinion out using the J 22536  or the J 44421  and a hammer.

    Strike the J 22536  or the J 44421  slowly. Do not  let the pinion fall out of the rear axle housing.

  6. Fig 1: Install J 22536 & J 44421
    G01480704Courtesy of GENERAL MOTORS CORP.
  7. Remove the collapsible spacer from the pinion. Discard the spacer.
  8. Remove the pinion bearings and the cups. Refer to Drive Pinion Bearings Replacement (8.6, 9.5, 11.5 Inch Axles)  or Drive Pinion Bearings Replacement (9.75 Inch Axle)  or Drive Pinion Bearings Replacement (10.5 Inch Axle) .
    IMPORTANT: The ring gear bolts on the 8.6 inch and the 9.5 inch axles have left-hand threads. The ring gear bolts on the 11.5 inch axle have right-hand threads.
  9. Remove the gear bolts. Discard the bolts.
    NOTE: Refer to RING GEAR REMOVAL NOTICE .
  10. Remove the ring gear from the differential. Drive the gear off with a brass drift if necessary.
Fig 2: Collapsible Spacer
G01480705Courtesy of GENERAL MOTORS CORP.