Highlights
- Use the lug wrench to loosen the lug nuts on the affected wheel while the car is still on the ground.
- Gently tap the rotor off the wheel hub using a hammer and a block of wood to protect the rotor’s surface.
- Gently tap the new bearing race into the hub using a hammer and a socket that matches the race’s outer diameter.
If you’re a proud owner of a VT Commodore, you know that maintaining your car is crucial for a smooth and enjoyable driving experience. One common maintenance task that may arise is replacing the rear wheel bearings. While it might seem daunting, replacing a VT Commodore rear wheel bearing is a DIY-friendly project that can save you money and give you a sense of accomplishment. This comprehensive guide will walk you through the entire process, step-by-step, with clear instructions and helpful tips.
Understanding the Importance of Rear Wheel Bearings
Rear wheel bearings are essential components that support the weight of your car and allow the wheels to rotate smoothly. They consist of a set of steel balls or rollers that are contained within a raceway. As you drive, these bearings experience constant friction and wear, eventually leading to failure.
Signs of a Failing Rear Wheel Bearing:
- Grinding or rumbling noise: This is a common symptom as the bearing starts to wear down. The noise will often increase with speed.
- Wobbling or shaking: A failing bearing can cause the wheel to wobble or shake, especially at higher speeds.
- Uneven tire wear: If one bearing is failing, it can cause the tire to wear unevenly.
- Increased steering effort: If a rear wheel bearing fails, it can make it harder to steer the car.
Gathering the Necessary Tools and Parts
Before you begin, ensure you have the following tools and parts:
Tools:
- Jack and jack stands
- Lug wrench
- Torque wrench
- Hammer
- Pry bar
- Socket set
- Wrench set
- Penetrating fluid
- Grease
- Safety glasses and gloves
Parts:
- New rear wheel bearings (ensure you get the correct size and type for your VT Commodore)
- Bearing race and seal
- Wheel hub (if necessary)
Preparing Your VT Commodore for the Replacement
1. Park your car on a level surface.
2. Engage the parking brake.
3. Chock the front wheels. This is an essential safety precaution to prevent the car from rolling while you’re working.
4. Loosen the lug nuts. Use the lug wrench to loosen the lug nuts on the affected wheel while the car is still on the ground. This will make it easier to remove the wheel later.
Lifting the Car and Removing the Wheel
1. Use the jack to lift the car. Position the jack under the designated jacking point for your VT Commodore (refer to your owner’s manual for accurate placement).
2. Securely place the jack stands. Once the car is lifted, place the jack stands under the vehicle’s frame, ensuring they are stable and supporting the car securely.
3. Remove the wheel. Use the lug wrench to remove the lug nuts and take off the wheel.
Removing the Old Rear Wheel Bearing
1. Remove the brake caliper. Use a wrench or socket set to loosen the caliper bolts and remove the caliper assembly.
2. Remove the rotor. Gently tap the rotor off the wheel hub using a hammer and a block of wood to protect the rotor’s surface.
3. Remove the old bearing. The bearing is typically held in place by a retaining nut. Using a socket wrench, loosen and remove the retaining nut.
4. Separate the bearing from the hub. Use a pry bar to gently separate the bearing from the hub. Be careful not to damage the hub during this process.
Installing the New Rear Wheel Bearing
1. Clean the hub and bearing race. Thoroughly clean the hub and bearing race using a wire brush and brake cleaner to remove any dirt or debris.
2. Install the new bearing race. Gently tap the new bearing race into the hub using a hammer and a socket that matches the race’s outer diameter. Ensure the race is seated flush with the hub.
3. Install the new bearing. Gently tap the new bearing onto the hub, ensuring it is properly seated.
4. Install the bearing seal. Apply a thin layer of grease to the new seal before installing it on the hub.
5. Install the wheel hub. If necessary, install a new wheel hub.
6. Tighten the retaining nut. Tighten the retaining nut to the manufacturer’s specified torque. Use a torque wrench to ensure proper tightness.
Reassembling the Components
1. Install the rotor. Carefully slide the rotor back onto the wheel hub.
2. Install the brake caliper. Attach the brake caliper back to the rotor, ensuring the bolts are securely tightened.
3. Install the wheel. Place the wheel back on the hub and tighten the lug nuts by hand.
4. Lower the car. Carefully lower the car using the jack until it is resting on the ground.
5. Tighten the lug nuts. Use the torque wrench to tighten the lug nuts to the manufacturer’s specified torque.
Final Checks and Test Drive
1. Check for leaks. After reinstalling the wheel, check for any brake fluid leaks.
2. Test drive the car. Take the car for a short test drive to ensure the new bearing is working properly.
3. Listen for any noises. Pay attention to any unusual noises that may indicate a problem.
Maintaining Your Rear Wheel Bearings
To prolong the life of your rear wheel bearings, follow these maintenance tips:
- Regularly inspect the bearings. Check for any signs of wear or damage.
- Lubricate the bearings with grease. Apply a thin layer of grease to the bearings during each wheel bearing inspection.
- Avoid driving on rough roads. Rough roads can put extra stress on the bearings.
- Replace worn-out bearings promptly. Do not delay replacing a worn-out bearing, as this can lead to more serious damage.
Your VT Commodore’s Rear Wheel Bearings Are Now Ready to Roll
By following these steps, you’ve successfully replaced the rear wheel bearing on your VT Commodore. You can now enjoy a smoother, quieter ride, knowing that you’ve performed a vital maintenance task yourself.
Popular Questions
Q: How often should I replace my rear wheel bearings?
A: The lifespan of rear wheel bearings varies depending on driving habits and road conditions. However, most bearings last between 50,000 and 100,000 miles.
Q: Can I use a generic wheel bearing for my VT Commodore?
A: It’s best to use a wheel bearing specifically designed for your VT Commodore model year. Generic bearings may not be compatible with your vehicle and could lead to problems.
Q: What happens if I don’t replace a failing rear wheel bearing?
A: Ignoring a failing rear wheel bearing can lead to more serious damage, including complete bearing failure, damage to the hub, and even a loss of control of the vehicle.
Q: What are some other signs of a failing rear wheel bearing?
A: Other signs of a failing rear wheel bearing include a clicking or popping sound when turning, a feeling of play or looseness in the wheel, and a decrease in fuel efficiency.
Q: How do I know if I need to replace the entire hub or just the bearing?
A: If the hub is damaged or worn, you will need to replace it. However, if the hub is in good condition, you can simply replace the bearing.