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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1585 (Rear Drive Axle) >> Repair Instructions >> Locking Differential Assemble (10.5 Inch Axle)

Locking Differential Assemble (10.5 Inch Axle)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The left and right side gear backlash and thrust block thickness measurement must be completed before the components of the differential can be assembled.
    Fig 1: Right Side Locking Differential Clutch Disc Thrust Washer
    GM882850Courtesy of GENERAL MOTORS CORP.
  1. Install the right side differential side gear shim into the right differential case half.
  2. Fig 2: Right Side Cam Unit & Clutch Plate Assembly
    GM882834Courtesy of GENERAL MOTORS CORP.
  3. Install the locking differential side gear cam unit and clutch disc assembly.
  4. Fig 3: Installing Latching Bracket & Spring Assembly
    GM882851Courtesy of GENERAL MOTORS CORP.
  5. Install the latching bracket and spring assembly.
  6. Fig 4: Installing Governor Assembly
    GM882856Courtesy of GENERAL MOTORS CORP.
  7. Install the governor assembly.
  8. Fig 5: Latching Bracket Spring & Governor Assembly Shaft
    GM882857Courtesy of GENERAL MOTORS CORP.
  9. Position the straight end of the latching bracket spring over the governor assembly shaft.
  10. Fig 6: Installing Differential Pinion Gears
    GM882859Courtesy of GENERAL MOTORS CORP.
  11. Install the locking differential spider, the differential pinion gears, and the differential pinion gear thrust washers into the differential case.
  12. Fig 7: Installing Thrust Block
    GM882860Courtesy of GENERAL MOTORS CORP.
  13. Install the thrust block.
  14. Fig 8: Left Side Gear Thrust Washer
    GM882831Courtesy of GENERAL MOTORS CORP.
  15. Install the left side differential side gear shim into the left differential case half.
  16. Fig 9: Left Side Clutch Plates & Guide Clips
    GM882829Courtesy of GENERAL MOTORS CORP.
  17. Install the left side clutch disc assembly.
  18. Fig 10: Locking Differential Side Gear
    GM882828Courtesy of GENERAL MOTORS CORP.
  19. Install the locking differential side gear.
  20. Fig 11: Installing Left Case Half To Right Case Half
    GM882861Courtesy of GENERAL MOTORS CORP.
  21. Install the left case half to the right case half.

    Hold the left side locking differential side gear and clutch disc assembly in the left side case half.

    Align the governor and latching bracket assembly shaft with the holes in the left case half.

  22. Turn the differential case over onto the left case half.
  23. Fig 12: Differential Case Screws
    GM882811Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  24. Install the differential case screws.

    Tighten:  Tighten the differential case screws to 17 N.m (13 lb ft).

  25. Install the 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) .
  26. Install the differential side bearings. Refer to Differential Bearing Replacement .