Tools You'll Need:
* Jack and jack stands
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Ratchet
* Brake caliper piston compression tool (C-clamp can be a makeshift solution, but a proper tool is recommended)
* Pliers
* Wire brush
* Brake cleaner
* New brake pads
* New brake shoes (if necessary, drum brakes are less common on the rear of a 2005 Colorado, but check your vehicle)
* Grease (for caliper pins)
* Torque wrench (highly recommended)
Procedure (assuming disc brakes, which are more likely):
1. Safety First: Park on a level surface, engage the parking brake, and chock the front wheels. Raise the rear of the vehicle using the jack and securely support it with jack stands. Remove the wheel.
2. Inspect: Before doing anything else, visually inspect the brake components for wear and tear. Look at the brake pads, caliper, rotor, and caliper mounting hardware. Note the condition of everything – this will help you determine what needs replacing beyond just the pads.
3. Remove the Caliper: Locate the caliper mounting bolts. These are usually on the back of the caliper. Use the appropriate socket to carefully remove the bolts. Support the caliper with your hand or a bungee cord to prevent it from hanging by the brake line.
4. Compress the Caliper Piston: Using the compression tool, carefully push the caliper piston back into the caliper bore. This creates space for the new, thicker brake pads. Be methodical and avoid damaging the piston. If you're using a C-clamp, wrap the piston with a piece of wood to protect it from scratches.
5. Remove the Old Brake Pads: The old pads should now slide out easily. Clean the caliper bracket with a wire brush and brake cleaner to remove any rust or debris.
6. Install the New Brake Pads: Carefully install the new brake pads into the caliper bracket. Ensure they are seated correctly.
7. Reinstall the Caliper: Carefully reattach the caliper to the bracket, ensuring the bolts are tightened to the manufacturer's specified torque.
8. Reinstall the Wheel: Torque the lug nuts to the manufacturer's specified torque. Lower the vehicle.
9. Repeat: Repeat steps 1-8 for the other rear wheel.
10. Test and Bleed (If Necessary): Pump the brake pedal several times to ensure proper engagement. If you had to completely remove the caliper, you *might* need to bleed the brakes to remove any air that entered the brake line. This is a more advanced procedure and requires a brake bleeder kit. Consult a repair manual or a qualified mechanic if you're unsure how to bleed your brakes.
Important Considerations:
* Drum Brakes: If your 2005 Colorado has rear drum brakes (less likely), the process is significantly different. You'll need to remove the brake drum, replace the brake shoes, and adjust the brake shoes. This requires specialized tools and more mechanical knowledge.
* Rotor Condition: Inspect the brake rotors for excessive wear or scoring. If they're significantly worn or damaged, they should be replaced.
* Caliper Condition: Check the caliper slides and pins for smoothness. If they're sticky or seized, they should be cleaned, lubricated, or replaced.
* Brake Fluid: Regularly check your brake fluid level.
Disclaimer: This information is for general guidance only. Improper brake repair can lead to serious injury or death. If you are not comfortable performing this repair yourself, consult a qualified mechanic. Always refer to your vehicle's repair manual for specific instructions and torque specifications.
