Manufacturers of front-wheel drive cars have switched from serviceable wheel bearings in the rear of vehicles to non-serviceable hub assemblies with sealed bearings. Replacement of worn bearings requires the replacement of the hub assemblies in some vehicles. Replacement of worn hub assemblies will restore bearing free play to factory tolerances and eliminate problems such as tire wear, bearing noise and brake squeal.
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Things you need
- Floor jack
- Jack stands
- Lug wrench
- Wrench set
- Socket set
- Torx socket set
Lift the rear wheels off the ground with the floor jack, and place jack stands under the frame. Lower the vehicle onto the jack stands so that they are supporting the weight of the vehicle. This prevents injuries caused by floor-jack failure. Remove the wheels using the lug wrench, and store the wheels and lug nuts in a place where they will not be accidentally tripped over, and where the lug nuts will not get lost.
Remove the brake drums or brake rotors. If your vehicle has rear disc brakes, remove the caliper and mounting bracket to allow the removal of the rotor. If your brake drums are stuck to the axles, a few sharp blows with a hammer will free them to allow removal.
Disconnect the anti lock brake sensor connector from the wheel speed sensor if the sensor is part of the hub assembly. Remove hub by removing the attaching bolts with a socket and extension from the socket set. Many hub assembly retaining bolts are torx style bolts, and require the use of a torx socket instead of the standard six point or twelve point sockets. Remove the old hub from the steering knuckle and install the new hub in it's place. Securely tighten all retaining bolts.
Reinstall the anti-lock brake sensor plug, and reinstall the drum or rotor. Tighten the caliper bracket bolts securely. Re-install the wheel, and lower the vehicle to the ground. Tighten the wheel lug nuts and test drive to verify the repair is complete.