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| DIY Wheel Bearing Change |
Wheel bearings play a crucial role in supporting a vehicle's weight, particularly at the four corners. When these bearings start to wear out, a noticeable humming noise becomes evident, especially at higher speeds and when turning the wheel slightly. For rear wheel bearings, the noise is usually constant.
In the past, wheel bearings were simpler, composed of two cone bearings on each front side, and they could be serviced during brake maintenance by packing them with grease. However, this design is rare nowadays, with most vehicles, except rear-wheel drive trucks, using hub bearings. Hub bearings consist of a bearing and flange surface bolted directly to the steering knuckle or rear transaxle.
Types of Front-Wheel Bearings:
1. Traditional Cone or Roller- Two Wheel Drive (2WD)
- Four Wheel Drive (4WD)
- Complete Unit
- Pressed-On Unit
Types of Rear-Wheel Bearings:
1. Typical Units
- Common for both front and rear, usually a complete hub bearing.
2. Solid Rear Drive Axle
- Found in vans, trucks, and older RWD cars, where rear wheel bearings are housed inside the solid axle.
Wheel Bearing Replacement Cost:
Front-Wheel Bearings – Traditional Cone or Roller
1. Two Wheel Drive (2WD)
- Bearings cost: $6-20.00
- Service cost: $80-100.00
- Total replacement cost: Around $150.00 (may vary based on rotor cost)
2. Four Wheel Drive (4WD)
- Bearings cost: Similar to 2WD
- Labor: 1-1.5 hours per side, $80-160.00
- Additional costs if the hub race is damaged.
Front Wheel Bearings – Hub Style
1. Complete Unit
- Bearing cost: $80.00 to $300.00
- Labor: 1-2 hours per side, $80-200.00
2. Pressed-On Unit
- Bearing cost: $25.00-50.00
- Labor: 2-4 hours per side, $160-400.00
Rear-Wheel Bearings
1. Typical Units
- Similar to front-wheel bearings.
2. Solid Rear Drive Axle
- Bearing cost: $25.00-50.00
- Labor: 1-4 hours
FAQs:
Can You Drive a Car with a Bad Wheel Bearing?
- It's not recommended due to the risk of complete failure and stability issues.
Can You Replace Wheel Bearings Yourself?
- Yes, it's possible with specialized tools. AutoZone offers tool rentals for free.
How Long Does it Take to Replace Wheel Bearings?
- Professional book times estimate 4-6 hours; first-timers may take longer.
Can You Check Wheel Bearings?
- Yes, by inspecting for movement and listening for grinding sounds while spinning the tire by hand.
Conclusion:
A noisy wheel bearing, indicated by a humming or rumbling sound, is a sign of wear. Driving with a damaged wheel bearing can be dangerous, leading to potential loss of control. The cost of replacing wheel bearings varies based on the type and complexity, and DIY replacement is possible with the right tools. Regular inspections are crucial to detect issues early and ensure vehicle safety.
For specific vehicle-related information, always consult your owner's manual or seek advice from professionals. If you have questions about wheel bearing replacement, visit your local AutoZone for parts, tools, and expert advice. Ensure safety precautions are taken during any automotive maintenance.
Please note that these estimations and information are general guidelines and may vary based on specific vehicle models and conditions. Always refer to the vehicle's manual and seek professional advice for accurate and safe maintenance.