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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1585 (Rear Drive Axle) >> Repair Instructions >> Rear Axle Shaft Replacement >> Installation Procedure

Installation Procedure

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.
    Fig 1: View Of Rear Axle Shaft & Brake Assembly
    GM2170558Courtesy of GENERAL MOTORS CORP.
    NOTE: When installing the rear axle shaft, ensure that the seal is not damaged.
  1. Install the disc brake axle shaft (1) in the rear axle assembly (2), if equipped.
    2. Fig 2: View Of Rear Axle Housing & Shaft
    GM2170561Courtesy of GENERAL MOTORS CORP.
  2. Install the drum brake axle shaft (2) in the rear axle assembly (1), if equipped.
    3. Fig 3: Identifying Rear Axle Lock Ring
    GM2170564Courtesy of GENERAL MOTORS CORP.
    NOTE: In steps 3 and 4, pull out on the axle shaft after the lock has been installed to ensure that the lock is seated properly.
  3. Install the lock (1) in the rear axle (2), without a locking differential.
    4. Fig 4: View Of Axle Shaft, Lock & Thrust Block
    GM156412Courtesy of GENERAL MOTORS CORP.
  4. Install the lock (1) on the rear axle shaft (3), with a locking differential.
    5. Fig 5: View Of Pinion Shaft
    GM156410Courtesy of GENERAL MOTORS CORP.
    NOTE: On axles with a locking differential, keep the differential pinion shaft slightly withdrawn.
  5. Install the differential pinion gear shaft.
    6. Fig 6: View Of Pinion Shaft Locking Bolt
    GM156409Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  6. Install the NEW differential pinion gear shaft bolt and tighten to 34 N.m (25 lb ft) for the 8.6 inch axle and 50 N.m (37 lb ft) for the 9.5 inch axle.
    7. NOTE: End play is the in and out movement of the rear axle shaft. Radial play is the up and own movement in the rear axle shaft.
  7. Check the rear axle shaft end play and the radial play. The rear axle shaft end play should be 0.012 inch per side and the radial play should be 0.002-0.003 inch. If the rear axle shaft is NOT within the specifications, replace any excessively worn parts.
  8. Install the rear axle housing cover and gasket. Refer to Rear Axle Housing Cover and Gasket Replacement (8.6, 9.5 Inch Axles)  or Rear Axle Housing Cover and Gasket Replacement (10.5/11.5 Inch Axle) .
  9. Install the wheel speed sensor.
  10. Install the brake caliper mounting bracket, if equipped. Refer to Rear Brake Caliper Bracket Replacement (JD9) or Rear Brake Caliper Bracket Replacement (JH6, JH7) .
  11. Install the rear brake drum, if equipped. Refer to Brake Drum Replacement .
  12. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  13. Remove the support and lower the vehicle. Refer to Lifting and Jacking the Vehicle .
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