Tools and Materials Needed:
* Repair Manual: Absolutely essential for torque specifications and detailed instructions.
* Jack and Jack Stands: Securely support the vehicle. Never work under a vehicle supported only by a jack.
* Wheel Chocks: For added safety.
* Lug Wrench: To remove the wheel.
* Socket Set and Wrenches: Various sizes will be needed.
* Ball Joint Separator (or Pickle Fork): To separate the ball joint from the steering knuckle. A ball joint press is preferred.
* Hammer and Punch: May be needed for stubborn parts.
* Penetrating Oil: To help loosen rusted or seized parts.
* New Hub Bearing Assembly: Ensure you get the correct part number for your vehicle.
* Torque Wrench: Crucial for tightening bolts to the correct specification.
* C-Clamp (possibly): To compress the caliper piston.
* Clean rags or shop towels
* Safety Glasses and Gloves
Procedure (General Outline - Consult your repair manual for specifics):
1. Safety First: Engage the parking brake, chock the wheels, and raise the vehicle securely with a jack and jack stands.
2. Remove the Wheel: Remove the lug nuts and carefully remove the wheel.
3. Remove the Brake Caliper: Use a C-clamp (if needed) to compress the caliper piston and carefully remove the caliper. Hang it from the suspension using wire or a bungee cord to avoid putting strain on the brake line.
4. Disconnect the ABS Sensor (if equipped): Unplug the ABS sensor wire harness connector from the hub.
5. Remove the Cotter Pin and Castle Nut: Remove the cotter pin and castle nut securing the wheel hub to the spindle.
6. Separate the Ball Joint: This is often the most challenging part. Use a ball joint separator or pickle fork (carefully!) to separate the ball joint from the steering knuckle. A ball joint press is the safest and least damaging method.
7. Remove the Hub and Bearing Assembly: Once the ball joint is separated, the hub and bearing assembly should slide off the spindle. You may need to gently tap it with a hammer and punch.
8. Installation:
* Clean the Spindle: Thoroughly clean the spindle before installing the new hub assembly.
* Install the New Hub Bearing Assembly: Press the new assembly onto the spindle. Make sure it seats properly.
* Reattach the Ball Joint: Carefully reattach the ball joint.
* Reinstall the Castle Nut and Cotter Pin: Tighten the castle nut to the proper torque specification (found in your repair manual). Install the cotter pin.
* Reinstall the Brake Caliper and Rotor: Make sure the caliper is properly seated and the brake pads are contacting the rotor.
* Reconnect the ABS Sensor (if equipped).
* Reinstall the Wheel and Lug Nuts: Tighten the lug nuts to the correct torque specification.
9. Lower the Vehicle: Carefully lower the vehicle and tighten the lug nuts again.
10. Test Drive: After the repair, go for a short test drive to check for any unusual noises or vibrations.
Important Considerations:
* Torque Specifications: Adhering to the correct torque specifications is crucial to prevent damage and ensure safety. Use a torque wrench.
* Bearing Preload: Some hub assemblies require a specific preload to function correctly. Consult your repair manual for instructions.
* Wheel Bearing Replacement: The hub assembly usually comes with a new wheel bearing. If you're replacing just the bearing, it's a more complex job requiring specialized tools.
Disclaimer: This is a general guide only. Incorrectly performing this repair could result in damage to your vehicle or personal injury. Consult a professional mechanic if you are unsure about any step. Always refer to your vehicle's repair manual for specific instructions and torque specifications.
