Tools You'll Likely Need:
* Jack and jack stands: Essential for safely lifting the truck.
* Wheel chocks: To secure the vehicle.
* Lug wrench: To remove the wheel.
* Wheel bearing press (or suitable alternative): Absolutely necessary for pressing in and out the bearings. Improvised methods can easily damage the hub.
* Sockets and wrenches: Various sizes will be needed, including those for caliper bolts, rotor bolts, cotter pin, axle nut.
* Hammer and punch: For removing and installing certain components.
* Torque wrench: Crucial for tightening bolts to the correct specifications (found in your repair manual).
* Penetrating oil: Helps loosen stubborn bolts.
* New wheel bearings and seals: Get the correct parts for your truck.
* Grease: Pack the new bearings with the appropriate grease.
* Clean rags: To keep things clean and prevent contamination.
* Safety glasses and gloves: Protect yourself.
General Steps (Consult your repair manual for precise details):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks. Raise the truck securely using the jack and jack stands.
2. Remove the Wheel and Tire: Remove the lug nuts and take off the wheel.
3. Remove the Caliper and Rotor: Carefully remove the caliper and secure it safely out of the way. You may need to use a caliper bracket bolt to keep the caliper from hanging by the brake line. Next, remove the rotor.
4. Remove the Axle Nut: This is often very tight; use a breaker bar and penetrating oil if needed. Note the orientation of the nut and washer.
5. Remove the Hub and Bearing Assembly: This is where the wheel bearing press is critical. You’ll need to press out the old bearing(s) from the hub. The exact method will vary based on the bearing design (tapered or sealed).
6. Clean and Inspect: Thoroughly clean the hub and spindle. Inspect for any damage.
7. Install New Bearings and Seals: Using the bearing press, carefully install the new bearings and seals into the hub and spindle. Make sure everything is seated correctly. This step is critically important and prone to damage if done incorrectly.
8. Pack Bearings with Grease: Pack the new bearings with the appropriate grease.
9. Reassemble: Reinstall the rotor, caliper, and wheel.
10. Torque Specifications: Tighten everything to the correct torque specifications as indicated in your repair manual. This includes the axle nut. This is absolutely critical to avoid damage and ensure safety.
11. Lower the Vehicle: Carefully lower the vehicle and remove the jack stands.
12. Test Drive: Take a short test drive to check for any noises or vibrations.
Important Considerations:
* Sealed vs. Tapered Bearings: Your Silverado might have sealed bearings (easier to replace) or tapered bearings (requiring more precise adjustment). Your repair manual will specify the type.
* ABS Sensor: Be careful not to damage the ABS sensor during the process.
* Torque Specs: Using the wrong torque values can lead to failure and danger.
* Professional Help: If you're uncomfortable with any of these steps, it's best to take your truck to a qualified mechanic. This job can easily result in costly damage if done improperly.
This is a general guide; consult your repair manual for specific procedures and torque specifications for your 2004 Silverado 2500HD. Improper repair can lead to serious safety hazards. If you're not comfortable performing this repair yourself, seek professional help from a qualified mechanic.
