Here's a general overview of the process. Specific steps and tools may vary slightly depending on your exact Bonneville model. Always consult a repair manual specific to your vehicle's year and model for detailed instructions and torque specifications. A Haynes or Chilton manual is a good investment.
Tools You'll Likely Need:
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To prevent the car from rolling.
* Lug wrench: To remove the wheel.
* Socket set and wrench set: Various sizes will be needed.
* Ball joint separator: To separate the ball joint from the control arm. A pickle fork can work but risks damage.
* Tie rod end separator: To separate the tie rod end from the steering knuckle. Again, a pickle fork is possible but risky.
* Hammer and punches: For various tasks.
* Torque wrench: Crucial for tightening bolts to the correct specification.
* Wheel bearing press: This is almost essential for proper installation and removal of the bearing. Improper installation can severely damage the bearing and lead to failure. You may be able to rent one.
* Penetrating oil (PB Blaster or similar): To help loosen rusted bolts.
* Grease: For the new bearing.
* New wheel bearing and race(s): Make sure you get the correct part number for your Bonneville.
General Steps (Consult your repair manual for specifics):
1. Safety First: Secure the vehicle with jack stands, engage the parking brake, and use wheel chocks.
2. Remove the Wheel: Loosen the lug nuts, jack up the car, secure it on jack stands, and remove the wheel.
3. Disconnect Components:
* Brake Caliper: Carefully remove the brake caliper and support it with wire or a bungee cord to prevent it from hanging by the brake line.
* Ball Joint: Separate the ball joint from the control arm using a ball joint separator.
* Tie Rod End: Separate the tie rod end from the steering knuckle using a tie rod end separator.
* ABS Sensor (If Applicable): Carefully disconnect the ABS sensor if your model has one.
4. Remove the Hub Assembly: This is often the most challenging part. You might need to remove cotter pins and castle nuts to release the assembly. The hub assembly likely contains the wheel bearing.
5. Press Out the Old Bearing: Use a wheel bearing press to safely remove the old bearing from the hub assembly. Attempting to remove it with a hammer and punches is highly discouraged, as this will likely damage the bearing and/or hub.
6. Press In the New Bearing: Use the wheel bearing press to carefully install the new bearing into the hub assembly. Ensure it's seated correctly.
7. Reassembly: Reverse the disassembly steps, carefully reinstalling all components. Pay close attention to torque specifications for all bolts and nuts.
8. Torque Specifications: Follow the torque specifications in your repair manual religiously. Incorrect torque can lead to premature failure of components.
9. Test Drive: After reassembly, carefully test drive the vehicle to ensure the new bearing is functioning correctly. Listen for any unusual noises.
This is a simplified overview. The actual process is more complex and requires careful attention to detail. Again, using a repair manual specific to your 1992 Pontiac Bonneville is absolutely crucial. If you are not confident in your abilities, seek professional help from a qualified mechanic to avoid potential damage to your vehicle or injury to yourself.
