Chevrolet Trailblazer Service Manual page 525

6. Use a J 24319-B steering linkage and tie rod puller to detach the outer tie rod.
7. Detach the brake hose bracket from the steering knuckle.
8. Detach the wheel speed sensor from the steering knuckle.
Upper ball pinch nut and bolt removal and installation
9. Remove and discard the nut and bolt from the upper control arm pinch.
10. Remove the steering knuckle from the upper control arm.
11. Remove and discard the retaining nut from the lower ball joint.