Removal & Installation
- Raise and properly support the vehicle.
Remove the wheels.
NOTEIf supporting the vehicle on jackstands, DO NOT place the jackstands directly under the lower control arms for the vehicle may slip off the jackstands during the steering knuckle removal.
- Remove the brake caliper from the steering knuckle and support it on a wire.
- Remove the grease cup, the cotter pin, the castle nut and the hub assembly.
Remove the splash shield-to-steering knuckle bolts and the shield.
NOTEWhen removing the splash shield on vehicles equipped with ABS, be sure to disconnect the speed sensor wiring and to treat the shield like an electrical component (Don't submerge it in solvent or anything which could damage the speed sensor assembly.
- At the tie rod end-to-steering knuckle stud, remove the cotter pin and the nut. Using the GM Tie Rod End Puller tool J6627 or equivalent, separate the tie rod end from the steering knuckle.
- From the upper and lower ball joint studs, remove the cotter pins and the nuts.
- Place a floor jack under the spring seat of the lower control arm and support the arm.
- Using the GM Ball Joint Remover tool No. J-23742 or equivalent, separate the upper ball joint from the steering knuckle.
- Carefully raise the upper control arm just sufficiently to separate it from the steering knuckle.
- Using the GM Ball Joint Remover tool No. J-23742 or equivalent, separate the lower ball joint from the steering knuckle, then lift the steering knuckle from the lower control arm.
Clean and inspect the steering knuckle and spindle for signs of wear or damage; if necessary, replace the steering knuckle.
Installation is the reverse of the removal procedure. Tighten the following components:
Upper ball joint-to-steering knuckle nut: 61 ft. lbs. (83 Nm)
- Before attempting to move the vehicle, pump the brake pedal slowly until a firm pedal is felt (this will seat the brake pads). Check and adjust the front end alignment, as necessary.