Tools You'll Likely Need:
* Jack and jack stands (safely support the vehicle!)
* Wheel chocks
* Lug wrench
* Socket set (metric)
* Torque wrench
* Hammer
* Pry bar
* Penetrating oil (like PB Blaster)
* Axle nut socket (often large and specialized)
* C-clamp or similar pressing tool (may be needed depending on the bearing type)
* New wheel bearing assembly (ensure it's the correct part for your vehicle)
* ABS sensor tool (may be needed for removal and installation)
* Possibly a press for removal and installation
Steps (General Outline):
1. Safety First: Engage the parking brake, chock the wheels, and use jack stands to securely lift the vehicle. Disconnect the negative battery terminal.
2. Remove the Wheel: Remove the lug nuts and wheel.
3. Remove the Brake Caliper: Unbolt the brake caliper and carefully hang it from the suspension using a wire or bungee cord to keep it out of the way. *Do not let the brake line hang freely.*
4. Remove the Rotor (if applicable): Depending on your Tahoe's year, the rotor might be bolted to the hub or integrated with it. Remove as necessary.
5. Disconnect the ABS Sensor: Carefully disconnect the ABS sensor wire from the hub. Take note of its position and how it's routed. Some sensors require a special tool for removal.
6. Remove the Axle Nut: This is usually a very large nut and may require a breaker bar or impact wrench. Penetrating oil is your friend here. Keep track of how many threads are exposed so you can correctly reassemble the axle shaft.
7. Remove the Hub Assembly: This is the most challenging part. You might need to use a hammer and pry bar (carefully!) to separate the hub assembly from the knuckle. Some models require a press to remove the bearing from the hub. Pay close attention to how the components come apart.
8. Inspect Components: Inspect the axle shaft, spindle, and other components for damage or wear. Replace as necessary.
9. Install the New Wheel Bearing Assembly: Installation is the reverse of removal. If using a press, use caution to avoid damaging the new bearing.
10. Install the ABS Sensor: Carefully reconnect the ABS sensor, ensuring it's properly seated.
11. Torque Specifications: Tighten all bolts and nuts to the manufacturer's specified torque. Use a torque wrench; incorrect torque can damage components.
12. Reinstall the Rotor (if applicable):
13. Reinstall the Brake Caliper: Securely reinstall the brake caliper and ensure the brake pads are properly contacting the rotor.
14. Reinstall the Wheel: Torque the lug nuts properly.
15. Lower the Vehicle: Carefully lower the vehicle and remove the jack stands.
16. Test: Test drive the vehicle to confirm the repair. Listen for any unusual noises. Check for proper braking and ABS function.
Important Considerations:
* 4WD: On 4WD Tahoes, there might be additional components (like CV axles) that need to be addressed. The process can be significantly more complex.
* ABS: The ABS sensor is crucial for safety. Handle it with care and ensure proper reinstallation.
* Bearing Type: There are different types of wheel bearing assemblies. Make sure you're replacing the correct one.
* Repair Manual: A factory repair manual is invaluable for this repair. It will provide detailed instructions, torque specifications, and diagrams specific to your year and model Tahoe.
This information is for guidance only. Always consult a qualified mechanic or your vehicle's repair manual for precise instructions and safety precautions. Improperly replacing a wheel bearing can lead to serious consequences, including accidents.
