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How do you replace the front wheel bearings of a 1999 Altima?

Replacing the front wheel bearings on a 1999 Altima involves several steps. It's important to note that this repair requires some mechanical knowledge, specialized tools, and safety precautions. Here's a general overview of the process:

1. Gather Tools and Supplies:

- Replacement front wheel bearings (2)

- Bearing press or heavy-duty socket and hammer

- Ball joint separator

- Jack and jack stands

- Socket and wrench set

- Pry bar

- Safety goggles

- Gloves

2. Safety First:

- Ensure the vehicle is parked on a level, stable surface.

- Engage the parking brake and chock the rear wheels.

- Use jack stands to support the vehicle securely while working underneath it.

3. Remove the Wheel:

- Use a lug wrench to loosen the lug nuts on the front wheel.

- Use the jack to raise the vehicle and remove the wheel completely.

4. Remove the Brake Caliper:

- Remove the bolts that hold the brake caliper in place.

- Carefully remove the brake caliper and hang it securely on a piece of wire to avoid straining the brake line.

5. Remove the Caliper Bracket:

- Remove the bolts that attach the caliper bracket to the steering knuckle.

- You might need to use a pry bar to loosen the bracket.

6. Remove the Rotor:

- Slide off the brake rotor from the hub. It may be necessary to use a pry bar to break the rotor free.

7. Remove the Wheel Hub Assembly:

- Remove the bolts that secure the wheel hub assembly to the steering knuckle.

- Separate the steering knuckle from the wheel hub assembly using a ball joint separator.

- Pull out the wheel hub assembly carefully.

8. Separate the Wheel Bearing:

- The wheel bearing is integrated into the wheel hub assembly and typically consists of an outer bearing and an inner bearing.

- Use the bearing press or the heavy-duty socket and hammer to separate the outer bearing from the hub assembly.

- Then, use the same technique to separate the inner bearing from the hub.

9. Install the New Bearings:

- Place the new inner bearing into the hub assembly and press it in firmly using the bearing press or the heavy-duty socket and hammer.

- Repeat the process with the new outer bearing.

10. Reassemble Everything:

- Reattach the wheel hub assembly to the steering knuckle and secure it using the bolts.

- Reinstall the rotor, caliper bracket, and brake caliper.

- Put the wheel back on and secure the lug nuts.

11. Test the Repair:

- Lower the vehicle and remove the jack stands.

- Test the front wheel by rotating it freely and checking for any unusual noise or resistance.

12. Recheck Tightness:

- After a short test drive, recheck the tightness of the lug nuts and any bolts you loosened during the repair.

Remember, this is just a general guide. If you're not comfortable performing these steps or if your car has a different model or variation, it's advisable to consult with a trusted mechanic or refer to a vehicle-specific repair manual for precise instructions and safety measures.