Front

Knuckle/Hub Replacement

Special Tools Required
^ Ball joint thread protector, 12 mm 07AAF-SDAA100
^ Ball joint remover, 28 mm 07MAC-SL00200
^ Bearing driver attachment, 72 x 75 mm 07746-0010600
^ Driver, 15 x 135L 07749-0010000
^ Support tease, 72 x 78/82.6 mm 07965-SD90100
^ Hub dis/assembly tool 07GAF-SD40200

1. Raise the front of the vehicle, and support it with safety stands in the proper locations.





2. Remove the wheel nuts (A) and the front wheels.







3. Remove the brake hose bracket mounting bolt (A).
4. Remove the caliper bracket mounting bolts (B), and remove the caliper assembly (C) from the knuckle. To prevent damage to the caliper assembly or brake hose, use a short piece of wire to hang the caliper assembly from the undercarriage. Do not twist the brake hose with force.





5. Remove the flange bolts (A) and wheel sensor (B) from the knuckle (C). Do not disconnect the wheel sensor connector.





6. Remove the 6 mm brake disc retaining screws (A).
7. Screw two 8 x 1.25 mm bolts (B) into the disc to push it away from the hub. Turn each bolt two turns at a time to prevent cocking the disc excessively.
8. Remove the brake disc from the knuckle.
9. Check the hub for damage and cracks.





10. Remove the cotter pin (A) from the tie-rod end ball joint, then remove the nut (B).
11. Disconnect the tie-rod ball joint from the knuckle using the special tool.





12. Remove the cotter pin (A) from the lower arm ball joint, and remove the castle nut (B).
13. Disconnect the lower arm ball joint from the knuckle using the special tools.





14. Remove the lock pin (A) from the upper arm ball joint, and remove the castle nut (B).
15. Disconnect the upper arm ball joint from the knuckle using the special tools.
16. Remove the knuckle.





17. Remove the hub cap (A).
18. Raise the stake (B) of the spindle nut (C), and remove the nut and purser (D).





19. Separate the hub (A) from the knuckle (B) using a hydraulic press. Be careful not to deform the splash guard. Hold onto the hub to keep it from falling when pressed clear.





20. Remove the screws (A), snap ring (B), and the splash guard (C) from the knuckle (D).





21. Press the wheel bearing (A) out of the knuckle (B) using the special tools and a press.





22. Press the wheel bearing inner race (A) out of the hub (B) using a commercially available bearing separator (C) and a press.
23. Wash the knuckle and hub thoroughly in a high flash point solvent before reassembly.





24. Press a new wheel bearing (A) into the knuckle (B) using the old bearing (C), a steel plate (D), the special tool, and a press. Place the wheel bearing on the knuckle with the pack seal side facing (E) (metal color) toward the inside. Be careful not to damage the sleeve of the pack seal.





25. Install the snap ring (A) securely in the knuckle (B).
26. Install the splash guard (C), and tighten the screws (D) to the specified torque value.
27. Wash the spindle thoroughly in a high flash point solvent before reassembly.





28. Install the hub (A) onto the knuckle (B) using the special tools and a hydraulic press. Take care not to deform the splash guard.





29. Install the purser (A).
30. Apply a small amount of engine oil to the seating surface of a new spindle nut (B). Install the nut, and tighten it to the specified torque value. Stake (C) the nut shoulder against the driveshaft with a drift.
31. Install the hub cap (D).
32. Install the knuckle in the reverse order of removal, paying particular attention to the following items:
^ Be careful not to damage the ball joint boot when installing the knuckle.
^ Use a new spindle nut and new self-locking nuts on reassembly.
^ Tighten all mounting hardware to the specified torque values.
^ Tighten the castle nut to the lower torque value, then tighten only far enough to align the slot with the ball joint pin hole. Do not align by loosening the castle nut.
^ Reinstall the cotter pin or lock pin on the castle nuts after torquing.
^ Before installing the brake disc, clean the mating surface of the hub and the inside of the brake disc.
^ Before installing the wheel, clean the mating surface of the brake disc and the inside of the wheel.
^ Check the wheel alignment, and adjust it if necessary.