Installation 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.

NOTE: When installing the rear axle shaft, ensure that the seal is not damaged.

Fig 1: View Of Rear Axle Shaft & Brake Assembly

GM2170558

Courtesy of GENERAL MOTORS CORP.

Install the disc brake axle shaft (1) in the rear axle assembly (2), if equipped.

Fig 2: View Of Rear Axle Housing & Shaft

GM2170561

Courtesy of GENERAL MOTORS CORP.

Install the drum brake axle shaft (2) in the rear axle assembly (2), if equipped.

Fig 3: Identifying Rear Axle Lock Ring

GM2170564

Courtesy 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.

Install the lock (1) in the rear axle (2), without a locking differential.

Fig 4: View Of Axle Shaft, Lock & Thrust Block

GM156412

Courtesy of GENERAL MOTORS CORP.

Install the lock (1) on the rear axle shaft (3), with a locking differential.

Fig 5: View Of Pinion Shaft

GM156410

Courtesy of GENERAL MOTORS CORP.

NOTE: On axles with a locking differential, keep the differential pinion shaft slightly withdrawn.

Install the differential pinion gear shaft.

Fig 6: View Of Pinion Shaft Locking Bolt

GM156409

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

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.
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) .
Install the wheel speed sensor.
- For Hybrid vehicles, refer to Rear Wheel Speed Sensor Replacement .
- For non Hybrid vehicles (1500 series), refer to Rear Wheel Speed Sensor Replacement .
- For non Hybrid vehicles (2500 series), refer to Rear Wheel Speed Sensor Replacement .
Install the brake caliper mounting bracket, if equipped. Refer to Rear Brake Caliper Bracket Replacement (JD9) or Rear Brake Caliper Bracket Replacement (JH6, JH7) .
Install the rear brake drum, if equipped. Refer to Brake Drum Replacement .
Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
Remove the support and lower the vehicle. Refer to Lifting and Jacking the Vehicle .