Here's a general overview of the process. Remember, this is *not* a substitute for a proper repair manual:
1. Preparation:
* Safety First: Use jack stands to securely lift the vehicle. Never work under a vehicle supported only by a jack. Wear safety glasses and gloves.
* Gather Tools: You'll need a jack, jack stands, wheel chocks, wheel wrench, socket set (metric), torque wrench, ball joint separator, pry bar, possibly a bearing packer, grease gun, and a clean work area.
* Consult your repair manual: This step is crucial! The manual will specify the correct torque specifications and the proper sequence for tightening bolts.
2. Removing the Wheel and Brake Components:
* Remove the wheel: Loosen the lug nuts before lifting the vehicle. Remove the wheel.
* Remove the caliper: Carefully remove the caliper and support it with a wire or bungee cord to prevent stress on the brake line. Some calipers might require removal of the brake pads first.
* Remove the rotor: Once the caliper is out of the way, remove the rotor. It might be rusted or stuck, requiring some persuasion (but be careful not to damage it).
* Disconnect the ABS sensor (if equipped): Carefully disconnect the ABS sensor if your vehicle has one.
3. Removing the Hub and Old Bearing:
* Remove the cotter pin and castle nut: This secures the hub to the spindle.
* Remove the hub assembly: This is often the most challenging part. You might need a ball joint separator or a large pry bar to separate the hub from the spindle. Be careful not to damage the spindle.
* Remove the old bearing: Once the hub is off, carefully remove the old bearing. This may require specialized tools depending on the bearing type (some are pressed in, others are easily removed).
4. Installing the New Bearing:
* Clean everything: Thoroughly clean the spindle and hub before installing the new bearing. Any dirt or debris can damage the new bearing.
* Pack the new bearing with grease: Use a bearing packer or carefully pack the bearing with grease. This is essential for lubrication and longevity.
* Install the new bearing: Depending on the type of bearing, you may need a press to install it. Make sure it's seated correctly.
* Install the hub assembly: Carefully install the hub assembly onto the spindle.
5. Reassembly:
* Install the rotor: Make sure the rotor is properly seated.
* Install the caliper: Reinstall the caliper and ensure the brake pads are correctly positioned.
* Install the cotter pin and castle nut: Tighten the castle nut to the manufacturer's specified torque. Then install the cotter pin.
* Install the wheel: Tighten the lug nuts to the manufacturer's specified torque.
* Lower the vehicle: Lower the vehicle and remove the jack stands.
* Final Check: Double-check all the bolts and nuts. Test the brakes thoroughly before driving.
Disclaimer: This is a general guide. Improper installation can lead to serious injury or damage. Refer to your vehicle's repair manual for detailed instructions and torque specifications. If you are not comfortable performing this repair, take your vehicle to a qualified mechanic.
