Tools You'll Need:
* Jack and jack stands: Absolutely essential for safety.
* Lug wrench: To remove the wheel.
* Wheel chocks: To secure the vehicle.
* Socket wrench and sockets: The correct size for your lug nuts and caliper bolts.
* C-clamp or caliper compression tool: To compress the caliper piston.
* Wrench or socket for the caliper bracket bolts (if applicable): Some models require removing the caliper bracket, others allow for removing the caliper while attached to the bracket.
* Penetrating oil (like PB Blaster): Helpful for loosening rusty bolts.
* Rotor removal tool (optional but recommended): Makes rotor removal much easier. These tools prevent damage to the rotor and hub. A hammer and punch can be used in a pinch, but are more likely to damage parts.
* Gloves: Protect your hands.
* Clean rags or shop towels: To clean up brake dust and fluid.
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Use jack stands to securely lift the vehicle after using a jack to raise it. Never work under a vehicle supported only by a jack.
2. Remove the Wheel: Remove the lug nuts and carefully remove the wheel.
3. Compress the Caliper Piston: Use the C-clamp or caliper compression tool to push the caliper piston back into the caliper bore. This will give you enough clearance to remove the rotor. Be careful not to damage the piston seal or boot. You may need to turn the piston as you push it in. If brake fluid comes out, it's not unusual but should be cleaned up immediately.
4. Remove the Caliper (if necessary): Depending on your model, you might need to remove the caliper completely from the caliper bracket. If so, you'll need to remove the bolts securing the caliper to the bracket. If you don't remove the caliper, carefully support it out of the way, being sure not to damage the brake line.
5. Remove the Rotor: Some rotors simply slide off the hub. Others may be held on by a single retaining bolt or pin. If it doesn't slide off easily, use a rotor removal tool to gently pull it off. Avoid hitting it with a hammer directly as you may damage the hub.
6. Clean the Hub: Clean the hub thoroughly to remove any rust or debris.
7. Install the New Rotor: Install the new rotor. If you have to reuse the old retaining bolt or pin, carefully clean the threads and ensure it's properly lubricated.
8. Reassemble: Reinstall the caliper (if you removed it), ensuring it's properly seated. Reinstall the wheel and tighten the lug nuts to the manufacturer's specified torque.
9. Lower the Vehicle: Carefully lower the vehicle and remove the jack stands.
Important Notes:
* Brake fluid is corrosive: Wear gloves and clean up any spills immediately.
* Torque Specifications: Refer to your vehicle's repair manual for the proper torque specifications for lug nuts and caliper bolts. Improper torque can lead to dangerous situations.
* Professional Help: If you are uncomfortable performing this task, it's best to take your vehicle to a qualified mechanic. Improperly installed brakes can be dangerous.
This is a general guide. Always consult your vehicle's repair manual for detailed instructions and torque specifications specific to your 2004 Chevy Colorado 4WD. Remember safety is your top priority.
