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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 Bearings Replacement (8.6, 9.5, 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)  or Differential Replacement (10.5 Inch, 11.5 Inch Axle) .
  3. Remove the drive pinion from the axle. Refer to Drive Pinion and Ring Gear Replacement (8.6 Inch, 9.5 Inch, 11.5 Inch Axles) , Drive Pinion and Ring Gear Replacement (9.75 Inch Axle)  or Drive Pinion and Ring Gear Replacement (10.5 Inch Axle) .
  4. For the 8.6 inch axle, install the J 45871  (1) around the pinion bearing and the J 22912-01  (2) in the inverted position around the J 45871  .
    5. Fig 1: J 45871 & J 22912-01
    GM911228Courtesy of GENERAL MOTORS CORP.
  5. Press the bearing off of the pinion using the J 45871  and the J 22912-01  .
  6. For the 9.5 inch and 11.5 inch axles, press the bearing off of the pinion using the J 22912-01  .
    7. Fig 2: Removing Inner Pinion Bearing Using Hydraulic Press
    GM680110Courtesy of GENERAL MOTORS CORP.
  7. Remove the shim.
  8. Remove the outer pinion bearing cup from the axle housing using a hammer and a brass drift in the slots provided. Move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly.
    9. Fig 3: Removing Outer Pinion Bearing Cup
    GM889100Courtesy of GENERAL MOTORS CORP.
  9. Remove the inner pinion bearing cup from the axle housing using a hammer and a brass drift in the slots provided. Move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly.
    10. Fig 4: Removing Inner Pinion Bearing Cup
    GM889098Courtesy of GENERAL MOTORS CORP.
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