Front Suspension System: Removal & Installation Chevrolet Silverado 1500

Removal Procedure

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the stabilizer links. Refer to «Stabilizer Shaft Link Replacement»(ref-238259-S42906438922006072400000) .
4. Remove the oil pan skid plate, if equipped.
5. Remove the stabilizer shaft insulator bracket bolts (3).
6. Remove the stabilizer shaft bracket (2).
7. Remove the stabilizer shaft (4).
8. Remove the stabilizer shaft insulators (1).
9. Inspect all of the parts for wear and damage.

Installation Procedure

1. Install the insulators (1) to the stabilizer shaft (4).
2. Install the stabilizer shaft (4).
3. Install the brackets (2) over the insulators and the stabilizer shaft.
4. Install insulator bracket bolts (3). Tighten: Tighten the bolts to 50 N.m (37 lb ft).
5. Install the stabilizer links. Refer to «Stabilizer Shaft Link Replacement»(ref-238259-S42906438922006072400000) .
6. Install the oil pan skid plate, if equipped. Tighten: Tighten the oil pan skid plate retaining bolts to 20 N.m (15 lb ft).
7. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
8. Remove the safety stands
9. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the stabilizer shaft nut (1) from the link bolt.
3. Remove the stabilizer shaft link bolt (3).
4. Remove the stabilizer shaft link insulators and spacers (2).
5. Inspect all of the parts for wear and damage.

Scheme 5

1. Install the stabilizer shaft link insulators and spacers (2).
2. Perform the following procedure before installing the stabilizer link bolts. Remove all traces of the original adhesive patch. Apply Threadlocker GM P/N 12345382 (Canadian P/N 10953489) BLUE LOCTITE # 242 on the threads of the bolts.
3. Install the stabilizer shaft link bolts (3).
4. Install the stabilizer shaft nut (1) to the link bolt. Tighten: Tighten the nut to 10 N.m (89 lb in). Continue to tighten the nut until 2-4 threads protrude above the nut.
5. Remove the safety stands
6. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the oil pan skid plate, if equipped.
4. Remove the stabilizer shaft insulator bracket bolts (3).
5. Remove the stabilizer shaft bracket (2).
6. Lower the stabilizer bar to remove the stabilizer shaft insulators (1).
7. Inspect all of the parts for wear and damage.

1. Install the stabilizer shaft insulators (1) to the stabilizer shaft (4).
2. Install the stabilizer shaft (4) brackets (2) over the insulators.
3. Install stabilizer shaft insulator bracket bolts (3). Tighten: Tighten the bolts to 33 N.m (24 lb ft), 15 series. Tighten the bolts to 50 N.m (39 lb ft), 25/35 series.
4. Install the stabilizer links. Refer to «Stabilizer Shaft Link Replacement»(ref-238259-S42906438922006072400000) .
5. Install the oil pan skid plate, if equipped. Tighten: Tighten the oil pan skid plate retaining bolts to 20 N.m (15 lb ft).
6. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
7. Remove the safety stands.
8. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the lower control arm. Refer to «Lower Control Arm Replacement (RWD)»(ref-238259-S41201887522006072400000) or «Lower Control Arm Replacement (4WD)»(ref-238259-S06690919302006072400000) .
4. Secure the lower control arm in a bench vice or equivalent.
5. Center punch the rivet heads.
6. Drill out the rivets.
7. Remove the lower ball joint.

1. Install the ball joint to the lower control arm.
2. Install the replacement bolts to the lower control arm.
3. Install the nuts to the bolts. Tighten: Tighten the nuts to 70 N.m (52 lb ft).
4. Remove the lower control arm from the bench vice.
5. Install the lower control arm. Refer to «Lower Control Arm Replacement (RWD)»(ref-238259-S41201887522006072400000) or «Lower Control Arm Replacement (4WD)»(ref-238259-S06690919302006072400000) .
6. Install the tire and wheel tire assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
7. Remove the safety stands.
8. Lower the vehicle.
9. Verify the wheel alignment. Refer to «Measuring Wheel Alignment»(ref-238306-S31266173742006072400000) in Wheel Alignment.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the lower control arm. Refer to «Lower Control Arm Replacement (RWD)»(ref-238259-S41201887522006072400000) or «Lower Control Arm Replacement (4WD)»(ref-238259-S06690919302006072400000) .
4. Place the lower control arm in a bench vice.
5. Using a chisel, remove the securing crimps from the ball joint body, if equipped.
6. Using a press, remove the ball joint from the lower control arm.

1. Install the new ball joint using a press.
2. Place the lower control arm in a bench vice.
3. Using a punch, install crimps to the ball joint, if necessary. Use the replaced ball joint as a reference.
4. Install the lower control arm. Refer to «Lower Control Arm Replacement (RWD)»(ref-238259-S41201887522006072400000) or «Lower Control Arm Replacement (4WD)»(ref-238259-S06690919302006072400000) .
5. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
6. Remove the safety stands.
7. Lower the vehicle.
8. Verify the wheel alignment. Refer to «Measuring Wheel Alignment»(ref-238306-S31266173742006072400000) in Wheel Alignment.

Steering Knuckle Replacement (RWD)

Tools Required

1. J 43631 Ball Joint Remover. See «Special Tools»(ref-238259-S05704846082006072400000) .
2. J 45851 Ball Joint Separator Protector Adapters. See «Special Tools»(ref-238259-S05704846082006072400000) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the wheel hub and bearing. Refer to «Wheel Hub, Bearing, and Seal Replacement (RWD)»(ref-238259-S07359136252006072400000) or «Wheel Hub, Bearing, and Seal Replacement (4WD)»(ref-238259-S29400535842006072400000) .
4. Support the lower control arm with a suitable jack.
5. Disconnect the outer tie rod from the knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(ref-238245-S13280589462006072400000) in Power Steering Systems or «Tie Rod Replacement»(ref-238288-S01071021422006072400000) in Steering Linkage (Non- Rack and Pinion).
6. Remove the brake hose bracket retaining bolt from the knuckle.
7. Remove the retaining nut and separate the upper ball joint from the steering knuckle using the J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
8. Remove the retaining nut and separate the lower ball joint from the steering knuckle using the J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
9. Remove the steering knuckle.

1. Clean all grease and contaminants from the tapered section and the threads of the upper ball joint, the lower ball joint, and the tie rod end.
2. Clean and inspect the taper holes and the mounting surfaces of the steering knuckle. If any of the tapered holes are elongated, out of round, or damaged, the replace the steering knuckle.
3. Install the steering knuckle.
4. Connect the lower ball joint to the steering knuckle and install the retaining nut. Tighten: Tighten the retaining nut to 100 N.m (74 lb ft).
5. Connect the upper ball joint to the steering knuckle and install the retaining nut. Tighten: Tighten the retaining nut to 50 N.m (37 lb ft).
6. Install the brake hose bracket retaining bolt to the knuckle. Tighten: Tighten the bolt to 9 N.m (80 lb in).
7. Connect the outer tie rod to the steering knuckle. Refer to «Rack and Pinion Outer Tie Rod End Replacement»(ref-238245-S13280589462006072400000) in Power Steering Systems or «Tie Rod Replacement»(ref-238288-S01071021422006072400000) in Steering Linkage (Non- Rack and Pinion).
8. Install the wheel hub and bearing. Refer to «Wheel Hub, Bearing, and Seal Replacement (RWD)»(ref-238259-S07359136252006072400000) or «Wheel Hub, Bearing, and Seal Replacement (4WD)»(ref-238259-S29400535842006072400000) .
9. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
10. Remove the safety stands.
11. Lower the vehicle.

Steering Knuckle Replacement (4WD)

Tools Required

1. J 43631 Ball Joint Remover. See «Special Tools»(ref-238259-S05704846082006072400000) .
2. J 45851 Ball Joint Separator Protector Adapters. See «Special Tools»(ref-238259-S05704846082006072400000) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the wheel hub and bearing assembly. Refer to «Wheel Hub, Bearing, and Seal Replacement (RWD)»(ref-238259-S07359136252006072400000) or «Wheel Hub, Bearing, and Seal Replacement (4WD)»(ref-238259-S29400535842006072400000) .
4. Support the lower control arm with a suitable jack.
5. Disconnect the outer tie rod to the steering knuckle. Refer to «Tie Rod Replacement»(ref-238288-S01071021422006072400000) in Steering Linkage (Non- Rack and Pinion).
6. Remove the brake hose bracket retaining bolt from the steering knuckle.
7. Remove the upper control arm retaining nut and separate the upper ball joint from the steering knuckle using the J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
8. Remove the lower control arm retaining nut. Separate the lower ball joint from the steering knuckle using the J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
9. Remove the steering knuckle.

1. Clean all grease and contaminants from the tapered section and the threads of the upper ball joint, the lower ball joint, and the tie rod end.
2. Clean and inspect the taper holes and the mounting surfaces of the steering knuckle. If any of the tapered holes are elongated, out of round, or damaged, replace the steering knuckle.
3. Install the steering knuckle.
4. Connect the lower ball joint to the steering knuckle and install the retaining nut. Tighten: Tighten the lower control arm retaining nut to 100 N.m (74 lb ft).
5. Connect the upper ball joint to the steering knuckle and install the retaining nut. Tighten: Tighten the upper control arm retaining nut to 50 N.m (37 lb ft).
6. Install the brake hose and the bracket retaining bolt to the steering knuckle Tighten: Tighten the bolt to 9 N.m (80 lb in).
7. Connect the outer tie rod to the steering knuckle. Refer to «Tie Rod Replacement»(ref-238288-S01071021422006072400000) in Steering Linkage (Non-Rack and Pinion).
8. Install the wheel hub and bearing assembly. Refer to «Wheel Hub, Bearing, and Seal Replacement (RWD)»(ref-238259-S07359136252006072400000) or «Wheel Hub, Bearing, and Seal Replacement (4WD)»(ref-238259-S29400535842006072400000) .
9. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
10. Remove the lower control arm support.
11. Lower the vehicle.
12. Align the vehicle. Refer to «Measuring Wheel Alignment»(ref-238306-S31266173742006072400000) in Wheel Alignment.

Upper Control Arm Replacement

Tools Required

1. J 43631 Ball Joint Remover. See «Special Tools»(ref-238259-S05704846082006072400000) .
2. J 45851 Ball Joint Separator Protector Adapters. See «Special Tools»(ref-238259-S05704846082006072400000) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the retaining bolt for the brake hose and the wheel speed sensor brackets.
4. Remove the wheel drive shaft. Refer to «Wheel Drive Shaft Replacement»(ref-238257-S07747008222006072400000) in Wheel Drive Shafts.
5. Remove the nut at the upper ball joint. Discard the nut.
6. Disconnect the upper control arm from the steering knuckle using the J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
7. For 15-Series 2WD/4WD and 25/35 Series 2WD, remove the control arm using the following procedure: Remove the upper control arm nuts and the adjustment cams (2). Remove the upper control arm bolts (4). Remove the upper control arm.
8. For the 25/35-Series 4WD, remove the control arm using the following procedure: Remove the upper control arm nuts and adjuster cams (2) Remove the upper control arm bolts (4). Remove the upper control arm.

1. Install the upper control arm.
2. Install the upper control arm bolts (4), the 25/35 Series for the 4WD.
3. Install the upper control arm nuts and the adjustment cams (2), the 25/35 Series for the 4WD. Tighten: Tighten the nuts to 190 N.m (140 lb ft).
4. For the 25/35-Series 4WD, install the control arm using the following procedure: Install the upper control arm. Install the upper control arm bolts (4). Install the upper control arm nuts and adjuster cams (2).
5. For 15-Series 2WD/4WD and 25/35 Series 2WD, install the control arm using the following procedure: Install the upper control arm. Install the upper control arm bolts (4). Install the upper control arm nuts and the adjustment cams (2).
6. Connect the upper control arm to the steering knuckle.
7. Install a new nut to the upper ball joint stud. Tighten: Tighten the nut to 50 N.m (37 lb ft).
8. Install the wheel drive shaft. Refer to «Wheel Drive Shaft Replacement»(ref-238257-S07747008222006072400000) in Wheel Drive Shafts.
9. Install the retaining bolts for the brake hose and wheel speed sensor brackets. Tighten: Tighten the bolts to 9 N.m (80 lb in).
10. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
11. Remove the safety stands.
12. Lower the vehicle.
13. Verify the wheel alignment. Refer to «Measuring Wheel Alignment»(ref-238306-S31266173742006072400000) in Wheel Alignment.

Lower Control Arm Replacement (RWD)

Tools Required

1. J 43631 Ball Joint Remover. See «Special Tools»(ref-238259-S05704846082006072400000) .
2. J 45851 Ball Joint Separator Protector Adapters. See «Special Tools»(ref-238259-S05704846082006072400000) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. For vehicles with rack and pinion steering, remove the front coil spring. Refer to «Front Coil Springs Replacement»(ref-238259-S32225445252006072400000) .
4. For vehicles with recirculating ball steering, remove the torsion bar. Refer to «Torsion Bar Replacement»(ref-238259-S42354176052006072400000) .
5. Remove the front stabilizer shaft link. Refer to «Stabilizer Shaft Replacement»(ref-238259-S37327365972006072400000) .
6. Remove the shock absorber. Refer to «Shock Absorber Replacement (RWD)»(ref-238259-S37350419962006072400000) or «Shock Absorber Replacement (4WD)»(ref-238259-S40244185982006072400000) .
7. Remove the lower control arm nuts and the 15-series washers.
8. Remove the lower control arm 15-series bolts.
9. Remove the lower control arm nuts and the 25/35-series washers.
10. Remove the lower control arm 25/35-series bolts.
11. Remove the lower ball joint retaining nut.
12. Disconnect the lower ball joint stud from the steering knuckle using J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
13. Remove the lower control arm.

1. Install the lower control arm.
2. Connect the ball joint stud to the steering knuckle.
3. Install the lower ball joint retaining nut. Tighten: Tighten the nut to 100 N.m (74 lb ft).
4. For vehicles with rack and pinion steering, install the front coil spring. Refer to «Front Coil Springs Replacement»(ref-238259-S32225445252006072400000) .
5. Install the lower control arm 15-series bolts.
6. Install the lower control arm nuts and the 15-series washers. Tighten: Tighten the nuts to 175 N.m (129 lb ft).
7. Install the lower control arm 25/35-series bolts.
8. Install the lower control arm nuts and the 25/35-series washers. Tighten: Tighten the nuts to 175 N.m (129 lb ft).
9. For vehicles with recirculating ball steering, install the torsion bar. Refer to «Torsion Bar Replacement»(ref-238259-S42354176052006072400000) .
10. Install the front stabilizer shaft link. Refer to «Stabilizer Shaft Replacement»(ref-238259-S37327365972006072400000) .
11. Install the shock absorber. Refer to «Shock Absorber Replacement (RWD)»(ref-238259-S37350419962006072400000) or «Shock Absorber Replacement (4WD)»(ref-238259-S40244185982006072400000) .
12. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
13. Remove the safety stands.
14. Lower the vehicle.
15. Verify the wheel alignment. Refer to «Measuring Wheel Alignment»(ref-238306-S31266173742006072400000) in Wheel Alignment.

Lower Control Arm Replacement (4WD)

Tools Required

1. J 43631 Ball Joint Remover. See «Special Tools»(ref-238259-S05704846082006072400000) .
2. J 45851 Ball Joint Separator Protector Adapters. See «Special Tools»(ref-238259-S05704846082006072400000) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the stabilizer shaft links from the lower control arm. Refer to «Stabilizer Shaft Replacement»(ref-238259-S37327365972006072400000) .
4. Remove the shock absorber lower nut and the bolt. Refer to «Shock Absorber Replacement (RWD)»(ref-238259-S37350419962006072400000) or «Shock Absorber Replacement (4WD)»(ref-238259-S40244185982006072400000) .
5. Remove the torsion bars. Refer to «Torsion Bar Replacement»(ref-238259-S42354176052006072400000) .
6. Remove the wheel drive shaft. Refer to «Wheel Drive Shaft Replacement»(ref-238257-S07747008222006072400000) in Wheel Drive Shafts.
7. Remove the lower ball joint retaining nut.
8. Disconnect the lower ball joint stud from the steering knuckle using J 43631 and J 45851 . See «Special Tools»(ref-238259-S05704846082006072400000) .
9. Remove the lower control arm nuts and the 15-series washers.
10. Remove the lower control arm bolts.
11. Remove the lower control arm nuts and the 25/35-series washers.
12. Remove the lower control arm bolts.
13. Remove the lower control arm.

1. Install the lower control arm.
2. Install the lower control arm 15-series bolts.
3. Install the lower control arm 25/35-series bolts.
4. Install the washers with the shoulder facing the arm.
5. Install the lower control arm retaining nuts. Tighten: Tighten the nuts to 175 N.m (129 lb ft).
6. Install the wheel drive shaft. Refer to «Wheel Drive Shaft Replacement»(ref-238257-S07747008222006072400000) in Wheel Drive Shafts.
7. Connect lower ball joint stud to the steering knuckle.
8. Install the retaining nut to the lower ball joint stud. Tighten: Tighten the nut to 100 N.m (74 lb ft).
9. Install the torsion bars. Refer to «Torsion Bar Replacement»(ref-238259-S42354176052006072400000) .
10. Install the shock absorber lower nut and bolt. Refer to «Shock Absorber Replacement (RWD)»(ref-238259-S37350419962006072400000) or «Shock Absorber Replacement (4WD)»(ref-238259-S40244185982006072400000) .
11. Install the stabilizer shaft links to the lower control arm. Refer to «Stabilizer Shaft Replacement»(ref-238259-S37327365972006072400000) .
12. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
13. Remove the safety stands.
14. Lower the vehicle.
15. Align the vehicle. Refer to «Measuring Wheel Alignment»(ref-238306-S31266173742006072400000) in Wheel Alignment.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Unsnap the jounce bumper from the mounting cup (4WD 15 Series).
3. Remove the nut from the jounce bumper stud (all 25/35 Series and RWD 15 Series with coil spring).
4. Remove the jounce bumper.

1. Snap the jounce bumper to the mounting cup (4WD 15 Series).
2. Install the jounce bumper (all 25/35 Series and RWD 15 Series with coil spring).
3. Install the nut to the jounce bumper stud. Tighten: Tighten the nut to 30 N.m (22 lb ft).
4. Remove the safety stands.
5. Lower the vehicle.

Front Coil Springs Replacement

Tools Required

1. J 23028-15 Coil Spring Compressor Adapter. See «Special Tools»(ref-238259-S05704846082006072400000) .
2. J 23028-A Coil Spring Remover and Installer. See «Special Tools»(ref-238259-S05704846082006072400000) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the engine protection shield, if equipped. Refer to «Engine Protection Shield Replacement»(ref-238217-S17740186002006072400000) in Frame and Underbody.
3. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
4. Remove the shock absorber. Refer to «Shock Absorber Replacement (RWD)»(ref-238259-S37350419962006072400000) or «Shock Absorber Replacement (4WD)»(ref-238259-S40244185982006072400000) .
5. Remove the front stabilizer shaft link. Refer to «Stabilizer Shaft Replacement»(ref-238259-S37327365972006072400000) .
6. Install J 23028-15 using the outboard locating tab. See «Special Tools»(ref-238259-S05704846082006072400000) .
7. Attach the retaining hook to the control arm. Tighten the wing nut until you eliminate any freeplay.
8. Securely attach J 23028-A to a suitable transmission jack. See «Special Tools»(ref-238259-S05704846082006072400000) .
9. Raise the jack until the yokes of J 23028-A line up with the notches in J 23028-15 . See «Special Tools»(ref-238259-S05704846082006072400000) .
10. Using the J 23028-A and the J 23028-15 and the transmission jack, relieve the spring tension from the lower control arm pivot bolts. See «Special Tools»(ref-238259-S05704846082006072400000) .
11. Remove the lower control arm pivot bolt.
12. Remove the rear pivot bolt.
13. Remove the front pivot bolt.
14. Slowly lower the transmission jack in order to unload the front coil spring. It may be necessary to use a pry bar in order to guide the lower control arm out of position.
15. Remove the coil spring and the insulator.

1. Install the coil spring and the insulator to the lower control arm.
2. Raise the transmission jack in order to compress the front coil spring. It may be necessary to use a pry bar in order to guide the lower control arm into position.
3. Install the front pivot bolt.
4. Install the rear pivot bolt.
5. Install the lower control arm pivot nuts. Tighten: Tighten the pivot bolt nuts to 145 N.m (107 lb ft).
6. Lower the jack. Remove the J 23028-15 from the control arm. See «Special Tools»(ref-238259-S05704846082006072400000) .
7. Install the front stabilizer shaft link. Refer to «Stabilizer Shaft Replacement»(ref-238259-S37327365972006072400000) .
8. Install the shock absorber. Refer to «Shock Absorber Replacement (RWD)»(ref-238259-S37350419962006072400000) or «Shock Absorber Replacement (4WD)»(ref-238259-S40244185982006072400000) .
9. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
10. Install the engine protection shield, if equipped. Refer to «Engine Protection Shield Replacement»(ref-238217-S17740186002006072400000) in Frame and Underbody.
11. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the brake rotor. Refer to «Brake Rotor Replacement - Front (1500 Series)»(ref-238255-S05541896552006072400000) or «Brake Rotor Replacement - Front (25/3500 Series)»(ref-238255-S31492293562006072400000) in Disc Brakes.
4. Remove the wheel stud from the hub flange using the J 43631 . See «Special Tools»(ref-238259-S05704846082006072400000) .
5. Remove the wheel stud from the hub flange.

Scheme 6

1. Install the new stud into the hub flange hole using firm hand pressure.
2. Install 4 washers to the new wheel stud.
3. Thread a wheel nut onto the new stud with the flat side facing the front hub flange.
4. Tighten the lug nut until the stud contacts the back of the hub flange.
5. Remove the wheel nut.
6. Remove the washers.
7. Install the brake rotor. Refer to «Brake Rotor Replacement - Front (1500 Series)»(ref-238255-S05541896552006072400000) or «Brake Rotor Replacement - Front (25/3500 Series)»(ref-238255-S31492293562006072400000) in Disc Brakes.
8. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
9. Remove the safety stands.
10. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the rotor. Refer to «Brake Rotor Replacement - Front (1500 Series)»(ref-238255-S05541896552006072400000) or «Brake Rotor Replacement - Front (25/3500 Series)»(ref-238255-S31492293562006072400000) in Disc Brakes.
4. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle.
5. Remove the wheel hub and bearing (4) 15-series mounting bolts.
6. Remove the wheel hub and bearing mounting bolts (4), the 25/35 series.
7. Remove the wheel hub and bearing and splash shield from the vehicle.
8. Remove the O-ring seal from the steering knuckle bore, the 25/35 series.
9. Remove the wheel speed sensor mounting bolt (5).
10. Clean and inspect the O-ring seal, the 25/35 series.
11. Replace the seal if the following conditions exist: Nicks Cuts Dry or brittle Compression set

Scheme 7

Scheme 8

1. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing.
2. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
3. Install the O-ring (7) to the steering knuckle, 25/35 series.
4. Install the wheel speed sensor mounting bolt. Tighten: Tighten the bolt to 18 N.m (13 lb ft).
5. Install the wheel hub and bearing and splash shield to the vehicle, 25/35 series.
6. Install the wheel hub and bearing (4) and splash shield to the 15-series steering knuckle.
7. Install the wheel hub and the 15-series bearing mounting bolts. Install the wheel hub and bearing mounting bolts, the 25/35 series. Tighten: Tighten the bolts to 180 N.m (133 lb ft).
8. Install the wheel speed sensor and brake hose mounting bracket bolt to the steering knuckle. Tighten: Tighten the brake hose clip bolt to 12 N.m (106 lb in).
9. Install the rotor. Refer to «Brake Rotor Replacement - Front (1500 Series)»(ref-238255-S05541896552006072400000) or «Brake Rotor Replacement - Front (25/3500 Series)»(ref-238255-S31492293562006072400000) .
10. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
11. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
3. Remove the rotor. Refer to «Brake Rotor Replacement - Front (1500 Series)»(ref-238255-S05541896552006072400000) or «Brake Rotor Replacement - Front (25/3500 Series)»(ref-238255-S31492293562006072400000) in Disc Brakes.
4. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle.
5. Remove the wheel drive shaft nut retaining cover.
6. Remove the wheel driveshaft assembly retaining nut (2) and washer (3) from the wheel driveshaft.
7. Disengage the wheel drive shaft from the wheel hub and bearing using J 45859 or equivalent.
8. Remove the wheel hub and the 15-series bearing mounting bolts (4).
9. Remove the wheel hub and bearing (4) mounting bolts, 25/35 series.
10. Remove the wheel hub and bearing and splash shield from the vehicle.
11. Remove the O-ring seal from the steering knuckle bore, 25/35 series.
12. Remove the wheel speed sensor mounting bolt (5).
13. Clean and inspect the O-ring seal, 25/35 series.
14. Replace the seal if the following conditions exist: Nicks Cuts Dry or brittle Compression set

1. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing assembly.
2. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
3. Install the O-ring (7) to the steering knuckle, the 25/35 series.
4. Install the wheel speed sensor mounting bolt to the wheel hub and bearing. Tighten: Tighten the sensor mounting bolt to 18 N.m (13 lb ft).
5. Install the wheel hub and bearing and splash shield to the vehicle, 25/35 series.
6. Install the wheel hub and bearing (5) and splash shield (6) to the vehicle, 15 series.
7. Install the wheel hub and bearing mounting bolts, the 15 series.
8. Install the wheel hub and bearing mounting bolts, 25/35 series. Tighten: Tighten the wheel hub to knuckle bolts to 180 N.m (133 lb ft).
9. Install the nut (2) and washer (3) retaining the wheel drive shaft assembly to the wheel hub and bearing. Tighten: Tighten the nut to 240 N.m (177 lb ft).
10. Install the wheel speed sensor and brake hose mounting bracket bolt to the steering knuckle. Tighten: Tighten the brake hose clip bolt to 12 N.m (106 lb in).
11. Install the rotor. Refer to «Brake Rotor Replacement - Front (1500 Series)»(ref-238255-S05541896552006072400000) or «Brake Rotor Replacement - Front (25/3500 Series)»(ref-238255-S31492293562006072400000) in Disc Brakes.
12. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(ref-238261-S35716783552006072400000) in Tires and Wheels.
13. Lower the vehicle.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Install the J 36202 to the adjustment arm and the crossmember. See «Special Tools»(ref-238259-S05704846082006072400000) .
3. Increase the tension on the adjustment arm until the load is removed from the adjustment bolt and the adjuster nut.
4. Remove the adjustment bolt (3) and the adjuster nut (4).
5. Remove the adjustment bolt (3) and the adjuster nut (4), for vehicles with MN8, MT1 AND MW3.
6. Remove the J 36202 , allowing the torsion bar to unload. See «Special Tools»(ref-238259-S05704846082006072400000) .
7. Remove the adjustment arm by sliding the torsion bar forward until the torsion bar clears the adjustment arm. Use your hand to support the adjustment arm as the adjustment arm releases from the torsion bar.
8. Remove the torsion bar crossmember bolts (4) from the weld nuts (1).
9. Remove the upper link mounting nuts (1) and the bolts (2).
10. Remove the torsion bar crossmember.
11. Remove the torsion bars from the vehicle.

1. Install the torsion bars to the lower control arm.
2. Install the torsion bar crossmember.
3. Install the torsion bar crossmember bolts (1) to the weld nuts (4). Tighten: Tighten the bolt to 95 N.m (70 lb ft).
4. Install the upper link mounting nuts and the bolts (3). Tighten: Tighten the nut to 95 N.m (70 lb ft).
5. While supporting the adjustment arm, slide the torsion bar rearward until the torsion bar fully engages the adjustment arm.
6. Install the J 36202 to the adjustment arm and the crossmember. See «Special Tools»(ref-238259-S05704846082006072400000) .
7. Increase the tension on the adjustment arm in order to load the torsion bar.
8. Install the adjustment bolt (3) and the adjuster nut (4).
9. Install the adjustment bolt (3) and the adjuster nut (4), for vehicles with MN8, MT1 AND MW3.
10. Remove the J 36202 releasing the tension on the torsion bar until the load is taken up by the adjustment bolt. See «Special Tools»(ref-238259-S05704846082006072400000) .
11. Remove the safety stands.
12. Lower the vehicle.
13. Measure the Z height. Refer to «Trim Height Inspection Procedure»(ref-238256-S27028927242006072400000) in Suspension General Diagnosis.
14. Turn the adjustment bolt (2) clockwise to increase the Z height and counterclockwise to decrease the Z height.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Remove the torsion bars. Refer to «Torsion Bar Replacement»(ref-238259-S42354176052006072400000) .
3. Remove the bushing from the bracket utilizing a bushing driver or the equivalent.

1. Install the bushing to the bracket utilizing a bushing driver or the equivalent.
2. Install the torsion bars. Refer to «Torsion Bar Replacement»(ref-238259-S42354176052006072400000) .
3. Remove the safety stands.
4. Lower the vehicle.
5. Measure the Z height. Refer to «Trim Height Inspection Procedure»(ref-238256-S27028927242006072400000) in Suspension General Diagnosis.
6. Turn the adjustment bolt clockwise to increase the Z height and counterclockwise to lower the Z height.

Note. The front shock absorbers of the vehicle are multifunctional. In addition to contributing to a smooth ride they also provide the only stop to the front suspension when fully extended. Therefore, when servicing the shock absorber, service replacement shock absorbers must be equivalent to original shock absorbers in both extended length and strength. Use of shocks not complying to original equipment or strength could result in suspension over-travel or shock breakage. Suspension over-travel may result in suspension component breakage.

Scheme 9

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Support the lower control arm with a jack stand.
3. If equipped with selectable ride, disconnect the electrical connector using the following procedure: Grasp the connector lock tabs (1,2). Rotate the connector tabs counterclockwise until the connector is unlocked. Disengage the connector from the tennon by firmly pulling the connector up. Hold the tennon end with a wrench while removing the nut. Remove the nut.
4. Remove the upper insulator (1).
5. Remove the shock absorber mounting bolts at the lower control arm.
6. Remove the shock absorber through the lower control arm from below.

Scheme 10

1. Install the shock absorber through the lower control arm from below. Insert the tennon through the mounting hole in the upper spring pocket.
2. Align the shock absorber with the mounting holes in the lower control arm.
3. Install the shock absorber mounting bolts to the lower control arm. Tighten: Tighten the bolts to 25 N.m (18 lb ft).
4. Install the upper insulator to the shock absorber.
5. Install the nut to the tennon end. Do not tighten the nut.
6. Remove the safety stands.
7. Lower the vehicle.
8. Hold the tennon end with a wrench while torquing the nut. Tighten: Tighten the nut to 20 N.m (15 lb ft).
9. If equipped with selectable ride, connect the electrical connector using the following procedure: Verify that the connector is unlocked. Align the connector so that the tabs (1) are perpendicular to the wrench flats on the tennon end. Engage the connector to the tennon by firmly pushing the connector down. Grasp the connector lock tabs (1,2). Rotate the connector counterclockwise.
10. The connector is locked into place when you hear an audible snap and the tabs (1,2) are aligned.
11. Dispose of the shock absorber. Refer to «Shock Absorber Disposal»(ref-238259-S40759873162006072400000) .

Note. The front shock absorbers of the vehicle are multifunctional. In addition to contributing to a smooth ride they also provide the only stop to the front suspension when fully extended. Therefore, when servicing the shock absorber, service replacement shock absorbers must be equivalent to original shock absorbers in both extended length and strength. Use of shocks not complying to original equipment or strength could result in suspension over-travel or shock breakage. Suspension over-travel may result in suspension component breakage.

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-238215-S26215505352006072400000) in General Information.
2. Support the lower control arm with a jack stand.
3. If equipped with selectable ride, disconnect the electrical connector, with the following procedure: Grasp the connector lock tabs (1,2). Rotate the connector tabs counterclockwise until the connector is unlocked. Disengage the connector from the tennon by firmly pulling the connector up. Hold the tennon end with a wrench while removing the nut. Remove the nut.
4. Remove the upper insulator (1). Do not discard the plastic pilot ring (2).
5. Remove the shock absorber mounting bolt at the lower control arm, the 15 series.
6. The lower shock mounting bushing is serviceable by driving the bushing out with the appropriate tool.
7. Remove the shock absorber mounting bolt (2) at the lower control arm, the 25 series.
8. Remove the shock absorber.

Scheme 11

1. Install the shock absorber. Insert the stem through the hole in the shock bracket on the frame.
2. Align the shock absorber with the mounting holes in the lower control arm, the 15 series.
3. Align the shock absorber with the mounting holes in the lower control arm, the 25 series.
4. Install the shock absorber through the bolt (2) to the lower control arm.
5. Install the shock absorber through the bolt nut (3). Tighten: Tighten the nut to 80 N.m (59 lb ft).
6. Install the upper insulator to the shock absorber.
7. Install the nut to the tennon end. Do not tighten the nut.
8. Remove the safety stands.
9. Lower the vehicle.
10. Hold the tennon end with a wrench while torquing the nut. Tighten: Tighten the nut to 20 N.m (15 lb ft).
11. If equipped with selectable ride, connect the electrical connector using the following procedure: Verify that the connector is unlocked. Align the connector so that the tabs (1) are perpendicular to the wrench flats on the tennon end. Engage the connector to the tennon by firmly pushing the connector down. Grasp the connector lock tabs (1, 2). Rotate the connector counterclockwise.
12. The connector is locked into place when you hear an audible snap and the tabs (1, 2) are aligned.
13. Dispose of the shock absorber. Refer to «Shock Absorber Disposal»(ref-238259-S40759873162006072400000) .