Tools Required

J 21474-01 Control Arm Bushing Service Kit

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Support the rear axle.
3. Remove spare tire on pickups and 4 door utility models, if necessary.
4. Disconnect rear exhaust hangers and lower exhaust system, if necessary.
5. Remove the fuel tank on 2 door utility models. Refer to Fuel Tank Replacement in Engine Controls - 4.3L.
6. Remove the EVAP canister on 2 door utility models, if necessary. Refer to EVAP Canister Replacement in Engine Controls - 4.3L.



7. Remove the following parts:

•	The upper shackle bolt

•

The nut

•	The flat washers

8. Loosen the lower shackle bolt at the spring.

Leave the bolt attached.

9. Lower the axle until there is enough clearance to remove the shackle bushing.
10. Use a blunt punch to straighten out the bushing flange that comes through the inner frame.

Important: Replace both of the shackle bushings while the fuel tank is removed from the vehicle.

11. Remove the shackle bushing using J 21474-01 .

1. Install the new shackle bushing using J 21474-01 .
2. Pull the bushing into the frame rail until the flanged portion of the bushing is flush with the rail.
3. Stake the shackle bushing inner flange.
4. Raise the axle into position.



5. Install the following parts:

•	The frame to the shackle bolt

•	The washers

•

The nut

•	Do not tighten the nut.

6. Repeat steps 1 through 6 for the other shackle bushing.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

7. Support the axle so that there is a distance of 164 mm to 176 mm (6.46 in to 6.94 in) between the axle tube and the metal surface of the bumper bracket (1).

Tighten
Tighten the rear shackle nuts to 122 N·m (89 lb ft).

8. Install the EVAP canister on 2 door utility models, if necessary. Refer to EVAP Canister Replacement in Engine Controls - 4.3L.
9. Install the fuel tank on 2 door utility models. Refer to Fuel Tank Replacement in Engine Controls - 4.3L.
10. Raise exhaust system and connect rear exhaust hangers, if necessary
11. Install spare tire on pickups and 4 door utility models, if necessary.
12. Remove rear axle support.
13. Lower the vehicle.