Lower Control Arm Replacement
REMOVAL PROCEDURE^ Tools Required:
- J 24319-B Steering Linkage Puller
- J 36202 Torsion Bar Loading/Unloading Tool
- J 36607 Ball Joint Separator
- J 36618 Lower Control Arm Bushing Service Set (Series 30)
- J 9519-23 Ball Joint C-Clamp
1. Raise the vehicle. Support the vehicle with suitable safety stands.
2. Remove the tire and wheel assembly.
3. Unload the torsion bar using the J 36202.
3.1. Mark the adjuster bolt for installation.
3.2. Slide the bar forward in order to remove the adjuster arm.
3.3. Remove the adjuster arm.
4. Remove the outer axle shaft nut (2) and the washer (3) from the hub assembly (4).
5. Remove the brake caliper.
6. Remove the brake rotor.
7. Remove the lower shock absorber bolt from the control arm. Compress the shock.
8. Using the J 24319-B, disconnect the inner tie rod end from the relay rod.
9. Support the lower control arm with a jack.
10. Remove the stabilizer link from the control arm.
11. Remove the drive axle (halfshaft) (5) from the hub.
12. Remove the cotter pin and the nut from the upper ball joint.
13. Using the J 36607, disconnect the upper ball joint from the knuckle.
14. Remove the lower control arm nuts and the washers.
15. Remove the bolts.
16. Remove the lower control arm and the knuckle as a unit.
17. Remove the front bushing.
17.1. Using a punch, unbend the crimps.
17.2. Remove the bushing using J 36618-2, J 9519-23, J 36618-4, and J 36618-1.
18. Remove the rear bushing (no crimp).
18.1. Removing the bushing using J 36618-5, J 36618-3, J 36618-2, and J 9519-23.
18.2. If the bushings on the K1 and K2 vehicles are worn or damaged, replace the lower control arm.
INSTALLATION PROCEDURE
1. Using the J 36618 and the J 9519-23, install the front bushing.
^ This applies to the K3 vehicle only.
^ After installing the bushing, crimp the bushing in place.
2. Using the J 36618 and the J 9519-23, install the rear bushing.
3. Install the lower control arm and the knuckle assembly to the crossmember and the frame bracket. Install the front leg of the lower control arm into the crossmember before installing the rear leg into the frame bracket.
4. Install the bolts in the direction shown.
5. Install the new nuts.
Tighten
^ Tighten the front nut prior to tightening the rear nut.
^ Tighten the nuts with the control arm at the proper Z height.
^ Tighten the nuts to 165 Nm (121 ft. lbs.).
NOTICE: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.
6. Prelube the steering knuckle seed.
7. Start the drive axle through the hub.
8. Connect the ball joint to the knuckle.
9. Install the ball joint nut.
Tighten
Tighten the nut to 128 Nm (94 ft. lbs.).
10. Install the cotter pin. Bend the pin ends against the side of the nut.
11. Install the torsion bar adjuster arm.
11.1. Slide the bar rearward in order to install the sides of the nut.
11.2. Using the J 36202, load the torsion bar.
11.3. Install the adjuster bolt and screw the bolt down to the installation mark.
12. Install7he outer axle shaft washer (3) and the nut (2) to the hub assembly (4).
Tighten
Tighten the nut to 225 Nm (165 ft. lbs.).
13. Install the lower shock absorber bolt.
14. Install the stabilizer link.
15. Install the tire and wheel assembly.
16. Lower the vehicle.