GrandPrix, Impala 2006-2008, Monte Carlo 2006-2007



The steering knuckle is a machined aluminum casting. Do not use a hammer to loosen suspension components from the knuckle.

Removal & Installation

Special tools are recommended for removing both the front hub spindle, the tie rod end and the ball joint. Use only the recommended tools for separating the ball joint from the knuckle. Do NOT hammer or pry the ball joint from the knuckle. Remember that the steering knuckle is cast aluminum and can be damaged if care is not used. Failure to use the recommended tools or their functional equivalent may cause damage to the ball joint and seal.

  1. Raise and safely support the vehicle.
  3. Remove the wheel and tire assembly.
  5. Remove the front hub and bearing assembly.
  7. Disconnect the lower ball joint.
  9. Remove the outer tie rod end.
  11. If the knuckle is to be reused, scribe a mark around the strut bracket to the knuckle. This will help align the strut at assembly.
  13. Remove the bolts connecting the strut to the knuckle and remove the knuckle from the vehicle.

    Click image to see an enlarged view

    Fig. Remove the cotter pin, then loosen the ball joint stud's slotted nut

    Click image to see an enlarged view

    Fig. Separating the ball joint from the steering knuckle using a special ball joint press tool

    Click image to see an enlarged view

    Fig. Use a suitable puller to separate the tie rod ends from the steering knuckle


To install:

  1. Install the knuckle to the vehicle. If the original knuckle is being reused, align the scribe marks made at removal to help get the strut-to-knuckle alignment as close as possible to the original location.
  3. Install the strut-to-knuckle bolts and tighten to 90 ft. lbs. (123 Nm).
  5. Install the outer tie rod end to the steering knuckle. Use a new torque prevailing nut and tighten to 22 ft. lbs. (30 Nm).
  7. Connect the lower control arm ball joint stud to the knuckle, install the slotted nut and torque to 40 ft. lbs. (55 Nm). A