Main points
- Are you experiencing a rumbling noise coming from your rear wheels, a feeling of looseness in the steering, or a noticeable vibration while driving.
- A worn-out wheel bearing can lead to a feeling of looseness in the steering, making it difficult to maintain a straight path.
- While the vehicle is still on the ground, use your lug wrench to loosen the lug nuts on the rear wheel you’ll be working on.
Are you experiencing a rumbling noise coming from your rear wheels, a feeling of looseness in the steering, or a noticeable vibration while driving? These could be signs of a worn-out rear wheel bearing. While it may seem daunting, changing a rear wheel bearing is a DIY project that can save you a significant amount of money. This comprehensive guide will walk you through the process step-by-step, providing you with the knowledge and confidence to tackle this repair yourself.
Recognizing the Signs of a Failing Rear Wheel Bearing
Before diving into the repair process, it’s essential to identify the telltale signs of a failing rear wheel bearing. This will help you diagnose the issue accurately and determine if a replacement is necessary.
- Rumbling Noise: One of the most common symptoms is a rumbling or grinding noise, especially when driving at higher speeds or turning corners. This noise intensifies as the bearing deteriorates.
- Vibration: You might feel a vibration in the steering wheel or through the vehicle’s body, particularly when driving at higher speeds.
- Looseness in Steering: A worn-out wheel bearing can lead to a feeling of looseness in the steering, making it difficult to maintain a straight path.
- Play in the Wheel: If you can move the wheel up and down or side to side with noticeable play, it’s a strong indicator of a worn-out bearing.
Gathering the Necessary Tools and Materials
Changing a rear wheel bearing requires a specific set of tools and materials. Ensure you have the following items before starting the repair:
- Jack and Jack Stands: These are essential for safely lifting the vehicle and supporting it during the repair.
- Lug Wrench: To loosen and tighten the lug nuts.
- Torque Wrench: For tightening the lug nuts to the correct specifications.
- Wheel Bearing Press: A specialized tool used to press out the old bearing and press in the new one.
- Hammer and Punch: For removing the bearing race from the hub.
- Cleaning Supplies: To clean the hub and bearing race before installing the new bearing.
- Grease: To lubricate the new bearing.
- New Rear Wheel Bearing: Choose a high-quality bearing from a reputable manufacturer.
- Safety Glasses and Gloves: To protect your eyes and hands.
Preparing the Vehicle for the Repair
Before you begin, it’s crucial to prepare your vehicle for the repair to ensure a safe and efficient process.
- Park on a Level Surface: Find a flat, level surface to park your vehicle. Ensure the parking brake is engaged and the vehicle is in Park (for automatics) or first gear (for manuals).
- Chock the Front Wheels: Place wheel chocks behind the front wheels to prevent the vehicle from rolling.
- Loosen the Lug Nuts: While the vehicle is still on the ground, use your lug wrench to loosen the lug nuts on the rear wheel you’ll be working on. Don’t remove them completely at this stage.
Lifting the Vehicle and Removing the Wheel
With the vehicle prepared, you can now lift it and remove the wheel.
- Position the Jack: Place the jack under the designated lifting point on the vehicle’s frame, as indicated in your owner’s manual.
- Raise the Vehicle: Slowly raise the vehicle until the wheel is off the ground.
- Place Jack Stands: Once the vehicle is lifted, position the jack stands securely under the frame, ensuring they are stable and supporting the vehicle’s weight.
- Remove the Wheel: With the vehicle safely supported, remove the lug nuts completely and take off the wheel.
Removing the Old Rear Wheel Bearing
Now that the wheel is off, you can proceed to remove the old wheel bearing.
- Remove the Brake Caliper: Carefully remove the brake caliper and hang it from the suspension with a wire or bungee cord to avoid putting stress on the brake lines.
- Remove the Rotor Remove the rotor by carefully prying it off the hub.
- Remove the Bearing Race: Using the hammer and punch, carefully remove the bearing race from the hub.
- Press Out the Old Bearing: Using the wheel bearing press, carefully press out the old bearing from the hub.
Installing the New Rear Wheel Bearing
With the old bearing removed, you can now install the new one.
- Clean the Hub and Race: Thoroughly clean the hub and bearing race to remove any dirt or debris.
- Install the Bearing Race: Using the hammer and punch, carefully install the new bearing race into the hub.
- Press In the New Bearing: Using the wheel bearing press, carefully press the new bearing into the hub.
- Apply Grease: Apply a generous amount of grease to the new bearing.
Reassembling the Rear Wheel and Lowering the Vehicle
With the new bearing installed, you can now reassemble the wheel and lower the vehicle.
- Install the Rotor: Carefully install the rotor back onto the hub.
- Install the Brake Caliper: Carefully reinstall the brake caliper and ensure it’s securely attached.
- Install the Wheel: Place the wheel back on the hub and tighten the lug nuts by hand.
- Lower the Vehicle: Carefully lower the vehicle using the jack until the wheel is back on the ground.
- Tighten the Lug Nuts: Use the torque wrench to tighten the lug nuts to the manufacturer’s specifications.
Final Checks and Test Drive
Before hitting the road, perform a final check to ensure everything is properly assembled and functioning correctly.
- Check for Leaks: Inspect the brake lines and caliper for any leaks.
- Check for Loose Parts: Ensure all parts are securely fastened and there are no loose components.
- Test Drive: Take a short test drive to ensure the new bearing is functioning properly and there are no unusual noises or vibrations.
Beyond the Repair: Maintaining Your Rear Wheel Bearings
To prolong the life of your rear wheel bearings and prevent future repairs, consider these maintenance tips:
- Regular Inspection: Inspect your rear wheel bearings regularly for signs of wear or damage.
- Proper Lubrication: Ensure the bearings are properly lubricated with grease.
- Avoid Overloading: Avoid overloading your vehicle, which can put extra stress on the bearings.
- Maintain Tire Pressure: Properly inflated tires can help reduce stress on the bearings.
The Final Drive: Ensuring a Smooth Ride for Years to Come
By following this comprehensive guide, you can successfully change your rear wheel bearing and enjoy a smooth, vibration-free ride for years to come. Remember to prioritize safety throughout the repair process and always consult a professional mechanic if you feel uncomfortable or unsure about any step.
Answers to Your Most Common Questions
Q: How often should I replace my rear wheel bearings?
A: The lifespan of a rear wheel bearing varies depending on driving conditions, vehicle usage, and maintenance. However, most rear wheel bearings last between 50,000 and 100,000 miles.
Q: Is it difficult to replace a rear wheel bearing?
A: While it requires some mechanical skills and specialized tools, replacing a rear wheel bearing is a DIY project that many people can successfully complete.
Q: What are the signs of a bad rear wheel bearing?
A: The most common signs of a bad rear wheel bearing include rumbling noises, vibrations, looseness in the steering, and play in the wheel.
Q: Can I drive with a bad rear wheel bearing?
A: It’s not recommended to drive with a bad rear wheel bearing. It can cause further damage to the hub, axle, and other components, potentially leading to a dangerous situation.
Q: How much does it cost to replace a rear wheel bearing?
A: The cost of replacing a rear wheel bearing can vary depending on the vehicle model, labor costs, and the cost of the bearing itself. However, DIY replacement can save you significant costs compared to a professional repair.