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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 >> Locking Differential Disassemble (10.5 Inch Axle)

Locking Differential Disassemble (10.5 Inch Axle)

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. Remove the differential case assembly. Refer to Differential Replacement (8.6, 9.5/9.5 LD Inch Axles)  or Differential Replacement (10.5 Inch, 11.5 Inch Axle) .
  2. Remove the differential ring gear. 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) .
  3. Remove the differential side bearings. Refer to Differential Side Bearings Replacement .
    4. Fig 1: View Of Differential Case Screws
    GM882811Courtesy of GENERAL MOTORS CORP.
  4. Remove the differential case screws.
    5. Fig 2: View Of Differential Case Halves
    GM882813Courtesy of GENERAL MOTORS CORP.
  5. Use the yoke hole location to pry and separate the differential case halves.
  6. Hold the locking differential cam, side gear, and the clutch plate assembly in the right side case half.
    7. Fig 3: View Of Governor Assembly (10.5 Inch Axle)
    GM882817Courtesy of GENERAL MOTORS CORP.
  7. Remove the differential governor.
    8. Fig 4: View Of Latching Bracket Assembly (10.5 Inch Axle)
    GM882818Courtesy of GENERAL MOTORS CORP.
  8. Remove the differential governor lock.
    9. Fig 5: View Of Thrust Block
    GM882823Courtesy of GENERAL MOTORS CORP.
  9. Remove the locking differential thrust block.
    10. Fig 6: View Of Locking Differential Spider, Differential Pinion Gears & Thrust Washers (Left Side)
    GM882827Courtesy of GENERAL MOTORS CORP.
    NOTE: Mark the differential spider, the differential pinion gears and the differential pinion gears accordingly in order to re-assemble the components correctly into the differential case.
  10. Remove the locking differential spider, pinion gears and the thrust washers.
    11. Fig 7: View Of Locking Differential Side Gear
    GM882828Courtesy of GENERAL MOTORS CORP.
  11. Remove the locking differential side gear.
    12. Fig 8: View Of Left Side Clutch Disc Assembly
    GM882829Courtesy of GENERAL MOTORS CORP.
  12. Remove the left side clutch plates and the guide clips.
    13. Fig 9: View Of Left Side Gear Thrust Washer
    GM882831Courtesy of GENERAL MOTORS CORP.
  13. Remove the left side gear thrust washer.
    14. Fig 10: View Of Right Side Cam Unit & Clutch Plate Assembly
    GM882834Courtesy of GENERAL MOTORS CORP.
  14. Remove the right side cam unit and clutch plate assembly.
    15. Fig 11: View Of Right Side Locking Differential Clutch Disc Thrust Washer
    GM882850Courtesy of GENERAL MOTORS CORP.
  15. Remove the right side locking differential clutch disc thrust washer.
  16. Disassemble the left side differential side gear and clutch disc assembly. Refer to Locking Differential Clutch Disc Assembly Disassemble (8.6 Inch Axle)  or Locking Differential Clutch Disc Assembly Disassemble (9.5 Inch Axle)  or Locking Differential Clutch Disc Assembly Disassemble (10.5 Inch Axle)  or Locking Differential Clutch Disc Assembly Disassemble (11.5 Inch Axle) .
  17. Disassemble the right side locking differential side gear cam unit and clutch disc assembly. Refer to Locking Differential Cam Unit Disassemble (8.6 Inch Axle)  or Locking Differential Cam Unit Disassemble (9.5 Inch Axle)  or Locking Differential Cam Unit Disassemble (10.5 Inch Axle)  or Locking Differential Cam Unit Disassemble (11.5 Inch Axle) .
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