Tools You'll Likely Need:
* Jack and jack stands: Essential for safely lifting the truck.
* Wheel chocks: To prevent the truck from rolling.
* Lug wrench: To remove the wheel.
* Socket set and wrenches: Various sizes will be needed.
* Hammer and punch: For removing and installing parts.
* Bearing puller: Specifically designed for removing wheel bearings. A slide hammer may be helpful.
* New wheel bearing(s): Get the correct part number for your truck's axle.
* New wheel seals: These should always be replaced when changing bearings.
* Torque wrench: Absolutely critical for properly tightening axle components to prevent damage and ensure safety.
* Penetrating oil (PB Blaster or similar): To loosen rusted or seized components.
* Clean rags: For cleaning parts and preventing contamination.
* Grease: For repacking the new bearing.
* Safety glasses and gloves: Protect yourself from injury.
General Steps (Again, consult your repair manual for precise details and torque specs!):
1. Safety First: Secure the truck on jack stands. Chock the front wheels. Disconnect the negative battery terminal.
2. Remove the Wheel and Brake Drum/Rotor: Remove the lug nuts, then the wheel. If you have drum brakes, remove the brake drum (often requires a drum puller). If you have disc brakes, remove the caliper assembly (support it with a wire or clamp to avoid putting tension on the brake line).
3. Remove the Axle Flange Nut: This is usually a very large nut. Use a breaker bar and penetrating oil if needed. This will require significant force. Mark the nut's position relative to the axle flange before removal to aid in proper reinstallation.
4. Remove the Axle Flange: This may require a puller, depending on how stubborn it is.
5. Remove the Wheel Bearing: This is where the bearing puller is crucial. The bearing races (inner and outer) need to be removed.
6. Inspect and Clean: Carefully inspect the axle shaft and hub for damage. Clean all parts thoroughly.
7. Install New Seals: Install new axle seals, ensuring they are properly seated.
8. Pack the New Bearing with Grease: Pack the new wheel bearing with grease.
9. Install the New Bearing: Carefully install the new bearing, often using a suitable installation tool to avoid damaging it.
10. Install the Axle Flange: Reinstall the axle flange, ensuring it's properly seated.
11. Tighten the Axle Flange Nut: Tighten the axle flange nut to the manufacturer's specified torque using a torque wrench.
12. Reinstall Brake Drum/Rotor and Wheel: Reassemble the brakes and the wheel. Tighten the lug nuts to the correct torque.
13. Lower the Truck: Carefully lower the truck from the jack stands.
14. Test Drive: Test drive the truck, listening carefully for any unusual noises from the wheel. If you hear any grinding or rumbling, the bearing may not be properly installed.
Important Considerations:
* Axle Configuration: The specific steps can vary significantly depending on your axle type. A 14-bolt axle, for example, is significantly different from an 8.5" 10-bolt.
* Torque Specifications: Incorrect torque can lead to bearing failure or damage to other components. Use a torque wrench and consult your repair manual.
* Professional Help: If you're not comfortable with this level of auto repair, take your truck to a qualified mechanic. A botched repair can be very costly and dangerous.
This information is for general guidance only. Always refer to a factory repair manual specific to your 1994 Chevy 1500 for detailed instructions, torque specifications, and safety precautions. Improper repair can lead to serious injury or damage to your vehicle.
