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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 734 (Front Suspension System) >> Repair Instructions >> Upper Control Arm Replacement (AWD) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the upper control arm to the frame.
  2. Install the upper control arm mounting bolts and m the cams.
    • Make sure the bolt heads are opposed inside the bracket.
    • The cam lobes must point down.

    Important:  Tighten the nuts with the control arm at Z height. Refer to TRIM HEIGHT INSPECTION PROCEDURE .

  3. Install the new upper control arm nuts.
    • Tighten the front nut first, then the rear nut.
    • Tighten the upper control arm cam hardware nuts to 140 N.m (103 lb ft).
  4. Connect the upper ball joint stud to the steering knuckle.
  5. Install the upper ball joint retaining nut. Tighten the upper ball joint retaining nut to 98 N.m (72 lb ft).
  6. Install a new cotter pin. Tighten the nut up to an additional 1/6 amount in order to insert the cotter pin through the upper ball joint stud. Bend the cotter pin ends flat against the nut.
  7. Install the brake hose bracket retaining nut and bolt. Tighten the brake hose bracket retaining nut to 16 N.m (12 lb ft).
  8. Install me speed sensor bracket retaining nut and bolt. Tighten the speed sensor bracket retaining nut to 16 N.m (12 lb ft).
  9. Install the tire and wheel.
  10. Remove the safety stand from the lower control arm.
  11. Lower the vehicle.
  12. Check the front wheel alignment. Refer to MEASURING WHEEL ALIGNMENT .
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