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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1040 (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 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 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 Lifting and Jacking the Vehicle in General Information.
  2. Remove the differential assembly. Refer to Differential Replacement (8.6 Inch, 9.5 Inch Axles) , Differential Replacement (9.75 Inch Axle) , 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. Fig 1: Installing J 22536 Or J 44421 On Pinion
    GM683960Courtesy of GENERAL MOTORS CORP.
  6. 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.

  7. Remove the collapsible spacer from the pinion. Discard the spacer.
  8. Fig 2: View Of Collapsible Spacer & Pinion
    GM9731Courtesy of GENERAL MOTORS CORP.
  9. Remove the pinion bearings and the cups. Refer to Drive Pinion Bearings Replacement (8.6, 9.5, 11.5 Inch Axles) , Drive Pinion Bearings Replacement (9.75 Inch Axle)  or Drive Pinion Bearings Replacement (10.5 Inch Axle) .
  10. 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.
  11. Remove the gear bolts. Discard the bolts.
  12. NOTE: Refer to Ring Gear Removal Notice in Cautions and Notices.
  13. Remove the ring gear from the differential. Drive the gear off with a brass drift if necessary.