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Home >> Chevrolet >> 2004 >> Astro Van Cargo, AWD >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Suspension System >> Repair Instructions >> Lower Control Arm Replacement (AWD) >> Removal Procedure

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the torsion bar. Refer to Torsion Bar Replacement .
  4. Remove the stabilizer shaft link. Refer to Stabilizer Shaft Link Replacement (RWD)  or Stabilizer Shaft Link Replacement (AWD) .
  5. Remove the shock absorber lower mounting bolt.
    Fig 1: Identifying Shock Absorber Lower Mounting Bolt
    GM165007Courtesy of GENERAL MOTORS CORP.
  6. Compress the shock absorber.
  7. Remove the rotor. Refer to Brake Rotor Replacement - Front in Disc Brakes.
  8. Remove the wheel drive shaft retaining nut and the washer from the wheel hub and bearing.
    Fig 2: View Of Wheel Drive Shaft Retaining Nut
    GM130905Courtesy of GENERAL MOTORS CORP.
  9. Disengage the wheel drive shaft from the wheel hub and bearing using J 45859  .
    Fig 3: Disengaging The Wheel Drive Shaft From The Wheel Hub And Bearing Using J 45859
    GM899220Courtesy of GENERAL MOTORS CORP.
  10. Remove the outer tie rod cotter pin and retaining nut.
    Fig 4: Identifying Outer Tie Rod To Steering Knuckle Retaining Nut
    GM689102Courtesy of GENERAL MOTORS CORP.
  11. Remove the outer tie rod from the steering knuckle using the J 24319-B  .
    Fig 5: Removing Outer Tie Rod Assembly From Steering Knuckle
    GM643351Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the wheel speed sensor electrical connector.
  13. Remove the wheel speed sensor bracket retaining bolts at the frame and upper control arm.
  14. Disconnect the wheel speed sensor wiring harness clips form the upper control arm.
  15. Remove the upper ball joint cotter pin and retaining nut.
  16. Install the J 36607  to the upper control arm and steering knuckle.
  17. Disconnect the upper control arm from the steering knuckle using the J 36607  .
    Fig 6: Disconnecting The Upper Control Arm From The Steering Knuckle Using J 36607
    GM130908Courtesy of GENERAL MOTORS CORP.
  18. Remove the lower ball joint cotter pin and retaining nut.
    Fig 7: Locating Upper Ball Joint Retaining Nut & Cotter Pin
    GM689207Courtesy of GENERAL MOTORS CORP.
  19. Using a pry bar, placed on top of the upper control arm and on the bottom of the frame, pry downward.
  20. With the aid of a helper, carefully hammer on the steering knuckle in the area of the lower ball joint stud in order to release the stud from the steering knuckle.
  21. Remove the steering knuckle and wheel hub and bearing.
  22. Remove the lower control arm mounting nuts and the washer.
    Fig 8: View Of Lower Control Arm Mounting Bolts, Nuts & Washer
    GM178925Courtesy of GENERAL MOTORS CORP.
  23. Remove the lower control arm mounting bolts.
  24. Remove the lower control arm from the vehicle.
  25. Remove the lower control arm brace from the lower control arm.
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