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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1331 (Rear Drive Axle) >> Repair Instructions >> Differential Drive Pinion Gear Bearing Replacement (8.6, 9.5, 11.5 Inch Axle) >> Disassemble Procedure

Disassemble Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the differential assembly. Refer to Differential Replacement (8.6, 9.5/9.5 LD Inch Axles)  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, 9.5/9.5 LD, and 11.5 Inch Axles)  or Drive Pinion and Ring Gear Replacement (10.5 Inch Axle) .
  4. Fig 1: View of DT-47688, Press & Bearing
    GM1988394Courtesy of GENERAL MOTORS CORP.
    NOTE: Step 4 is for those vehicles equipped with the 8.6 inch axle.
  5. Using the DT 47688:  remover and a press, remove the bearing from the drive pinion.
  6. Fig 2: View Of Inner Pinion Bearing & Hydraulic Press
    GM680110Courtesy of GENERAL MOTORS CORP.
    NOTE: Step 5 is for those vehicles equipped with the 9.5 LD inch axle.
  7. Using the J 22912:  remover and a press, remove the differential pinion bearing.
  8. Fig 3: View Of Selective Pinion Spacer And Pinion Gear
    GM2139036Courtesy of GENERAL MOTORS CORP.
  9. Remove the shim (1).
  10. Fig 4: View Of Outer Pinion Bearing Cup
    GM889100Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
  11. Using a hammer and a brass drift in the slots provided, remove the outer pinion bearing cup from the axle housing.
  12. Fig 5: View Of Inner Pinion Bearing Cup
    GM889098Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
  13. Using a hammer and a brass drift in the slots provided, remove the inner pinion bearing cup from the axle housing.