Here's a general outline of the process. Remember, this is *not* a substitute for a proper repair manual:
Tools You'll Likely Need:
* Jack and jack stands: Crucial for safety. Never work under a vehicle supported only by a jack.
* Wheel chocks: To secure the vehicle.
* Lug wrench: To remove the wheel.
* Socket set and wrenches: Various sizes will be needed, including metric and possibly some specialty sockets.
* Hammer and punch: For removing and installing components.
* Torque wrench: Absolutely essential for tightening bolts to the correct specification.
* Wheel bearing press (or puller and installer): This is generally required for proper bearing removal and installation. Improper installation can severely damage the bearing and hub assembly.
* Penetrating lubricant (like PB Blaster): Helps loosen rusted or seized parts.
* New wheel bearings and seals: Get the correct parts for your vehicle.
* Grease: For packing the new bearings.
* Clean rags or shop towels: To keep things clean.
* Safety glasses and gloves: Always protect yourself.
General Steps (Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels.
2. Raise and Secure: Safely jack up the vehicle and place it securely on jack stands.
3. Remove Wheel: Remove the lug nuts and take off the wheel.
4. Remove Brake Caliper: Remove the caliper assembly (usually with a bolt or two) and carefully hang it out of the way using a wire or bungee cord. Do *not* let the brake line hang.
5. Remove Rotor: Remove the brake rotor. Sometimes this requires some persuasion with a rubber mallet.
6. Remove Axle Nut: This is usually a large nut on the end of the axle. You may need a breaker bar and possibly a larger socket. Remember the torque specification for reinstallation!
7. Separate Hub and Bearing Assembly: This is where the bearing press (or puller and installer) comes in. This is often the most challenging part. The hub assembly is typically pressed onto the spindle.
8. Remove Old Bearing: Use the press to carefully remove the old bearing from the hub assembly.
9. Clean and Inspect: Clean the hub assembly thoroughly. Inspect the spindle for any damage.
10. Pack New Bearing with Grease: Pack the new bearing with grease according to the manufacturer's instructions.
11. Install New Bearing: Use the press to carefully install the new bearing into the hub assembly.
12. Reassemble: Carefully reassemble everything in reverse order, making sure everything is properly seated and torqued to the correct specifications (refer to your repair manual). This includes reinstalling the axle nut to the correct torque.
13. Lower Vehicle: Carefully lower the vehicle.
14. Test Drive: Test drive the vehicle and listen for any unusual noises.
Important Considerations:
* ABS Sensor: If your vehicle has anti-lock brakes (ABS), you'll likely need to disconnect and reconnect the ABS sensor. Be careful not to damage it.
* Torque Specifications: Incorrect torque can lead to premature bearing failure or damage to other components. Use a torque wrench and follow the specifications in your repair manual.
* Pressing the Bearing: Using the wrong tools to press in or out the bearings can damage the bearings and the hub. Using a press is highly recommended.
This is a complex repair. If you are not comfortable with automotive repair, it's best to take your vehicle to a qualified mechanic. Improperly installed wheel bearings can lead to serious accidents.
