Assembly Procedure

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

Install the upper control arm bushings:
1. 1.1. Secure the control arm tightly in a vise, then thread J 21474-19 through J 39930. The three tangs on J 39930 should face away from the screw head.
2. 1.2. Install a new upper control arm bushing onto J 21474-19 with the three indentations facing toward the three tangs on J 39930.
3. 1.3. Install the threaded and of J 21474-19 into the upper control arm from the outer side of the control arm.
4. 1.4. Install J 21474-5 onto J 2174-19 from the inside of the control arm.
5. 1.5. Install the thrust washer (2) onto J 21474-19 with the seam facing toward the control arm bushing.
  
  Fig 1: Installing Thrust Washer
  Courtesy of GENERAL MOTORS CORP.
6. 1.6. Install J 39872 around the outside of the bushing in order to avoid metal distortion during removal.
7. 1.7. Install J 21474-18 onto J 21474-19. Fit the three tang prongs on J 39930 into the indentations of the bushing.
8. 1.8. Tighten until the bushing is flush with the control arm.
Inspect the front upper control arm to the front upper control arm support.
Install the bolts/screws and nuts.
Tighten

Tighten the nuts to 98 N.m (72 ft. lbs.).
Install the upper control arm. Refer to Upper Control Arm Replacement .