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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1347 (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 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 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.
    NOTE: Refer to FASTENER NOTICE .
    4. Fig 1: Spacers, Anchor Plates & U-Bolts
    G01480788Courtesy of GENERAL MOTORS CORP.
  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. 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 .
  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 (106 lb ft).

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

    Tighten 

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

    Fig 2: Brake Pipe Bracket Nut & Bolts, Jounce Bracket And Flex Hose Bracket Bolts
    G01480789Courtesy 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 .
  13. Connect the parking brake cable. Refer to PARK BRAKE CABLE .
  14. Install the tire and wheel assemblies. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION  .
  15. Connect the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT-ONE PIECE  or PROPELLER SHAFT REPLACEMENT-TWO PIECE  .
  16. Fill the axle with lubricant. Use the proper fluid.
  17. Remove the jack stands.
  18. Lower the vehicle.
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