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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1014 (Rear Drive Axle) >> Repair Instructions >> Rear Axle Replacement (15 Series with RPO NYS) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Place the axle assembly onto the jack and place the rear axle assembly under the vehicle.
  2. Align the rear axle assembly with the springs. Using the jack slowly raise the rear axle assembly into position.
  3. Connect the spacers, the spring plates and the U-bolts to the rear axle.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the washers if equipped and the nuts to the U-bolts.

    Tighten:  Tighten the nuts in a criss cross pattern to 150 N.m (110 lb ft).

    5. Fig 1: Installing U-Bolts
    GM348393Courtesy of GENERAL MOTORS CORP.
  5. Install the vent hose to the rear axle vent fitting. Refer to Vent Hose Replacement .
  6. Connect the shock absorbers to the rear axle. Refer to Shock Absorber Replacement in Rear Suspension.
  7. Remove the mechanics wire supporting the brake pipe assembly. Carefully position the brake pipe assembly onto the rear axle.
  8. Install the brake pipe bracket nut (4).

    Tighten:  Tighten the nut to 13 N.m (115 lb in).

  9. Install the jounce bracket bolt (3).

    Tighten:  Tighten the bolt to 12 N.m (106 lb in).

  10. Install the 2 brake pipe bracket bolts (2).

    Tighten:  Tighten the bolts to 22 N.m (16 lb ft).

  11. Install the 2 flex hose bracket bolts (1).

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

    12. Fig 2: Flex Hose Bracket Bolts, Pipe Bracket Bolts, Jounce Bracket Bolt & Pipe Bracket Nut
    GM793892Courtesy of GENERAL MOTORS CORP.
  12. Remove the mechanics wire securing the brake calipers and install the brake calipers to the brake caliper mounting brackets. Refer to Brake Caliper Replacement - Rear (1500 Series) or Brake Caliper Replacement - Rear (2500/3500 Series) in Disc Brakes.
  13. Connect the parking brake cable. Refer to Park Brake Cable Replacement - Left Rear (w/oNYS) or Park Brake Cable Replacement - Left Rear (w/NYS) and Park Brake Cable Replacement - Right Rear (w/oNYS) or Park Brake Cable Replacement - Right Rear (w/NYS) in Park Brake.
  14. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  15. Connect the propeller shaft. Refer to Propeller Shaft Replacement - One Piece or Propeller Shaft Replacement - Two Piece in Propeller Shaft.
  16. Fill the axle with lubricant. Use the proper fluid. Refer to Capacities - Approximate Fluid and Fluid and Lubricant Recommendations in Maintenance and Lubrication.
  17. Remove the jack stands.
  18. Lower the vehicle.
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