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Home >> Buick >> 2003 >> LeSabre Custom, 4T65E/MN3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1324 (Front Suspension System) >> Repair Instructions >> Lower Control Arm Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View of Lower Control Arm
    GM183653Courtesy of GENERAL MOTORS CORP.
  1. Install the lower control arm to the frame.
  2. IMPORTANT: Do not tighten the control arm nuts at this time. Before tightening the control arm mounting nuts, support the weight of the vehicle by the control arms in order to obtain the vehicle design trim heights.
  3. Install the lower bolts, control arm and nuts.
  4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the lower ball joint and retaining nut to the steering knuckle.

    Tighten:  Tighten the lower ball joint retaining nut to 10 N.m (89 lb in) plus an additional 180 degrees.

  6. IMPORTANT: Do not exceed two slots during cotter pin alignment.
  7. Continue to tighten the ball joint nut for cotter pin alignment and install the cotter pin.
  8. Install the stabilizer shaft link. Refer to Stabilizer Shaft Link Replacement .
  9. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  10. Lower the vehicle.
  11. Inspect the trim height. Refer to Trim Height Specifications in Suspension General Diagnosis.
  12. Tighten the control arm bolts in the following sequence:

    Tighten: 

    1. Tighten the rear mounting bolt to 170 N.m (125 lb ft).
    2. Tighten the front mounting nut to 158 N.m (117 lb ft).