Tools You'll Need:
* Jack and jack stands: Essential for safety. Never work under a vehicle supported only by a jack.
* Lug wrench: To remove the wheels.
* Wheel chocks: To secure the vehicle.
* Socket wrench and sockets: Various sizes, likely including 13mm, 15mm, and possibly others.
* C-clamp or brake caliper compression tool: To compress the caliper piston.
* Wrench or socket for caliper bolts: Size will depend on your year.
* Penetrating oil (PB Blaster, etc.): To help loosen rusted bolts.
* Gloves: To protect your hands.
* Safety glasses: To protect your eyes.
* New brake pads: Make sure you get the correct pads for your Avalanche.
* Optional: Torque wrench: To tighten bolts to the manufacturer's specifications.
Procedure (General Steps):
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Raise the front of the Avalanche using the jack and securely support it with jack stands.
2. Remove the Wheel: Remove the lug nuts and carefully take off the wheel.
3. Expose the Caliper: You should now see the brake caliper clamping onto the rotor.
4. Compress the Caliper Piston: Using the C-clamp or compression tool, carefully compress the brake caliper piston. This creates space for the new, thicker brake pads. Be careful not to damage the piston or boot. Some pistons rotate as you compress them, so you may need to rotate it while compressing.
5. Remove the Brake Pads: There are usually two retaining pins or clips holding the brake pads in place. Remove these pins or clips (usually a small bolt or clip on each side). Carefully slide the old brake pads out.
6. Clean the Caliper and Slide Pins: Clean the caliper bracket and the slide pins with a wire brush or brake cleaner. Lightly lubricate the slide pins with brake caliper lubricant.
7. Install the New Brake Pads: Insert the new brake pads into the caliper bracket. Make sure they slide freely.
8. Reassemble: Replace the retaining pins or clips.
9. Reinstall the Wheel: Carefully put the wheel back on and tighten the lug nuts. Don't fully tighten them yet.
10. Lower the Vehicle: Lower the Avalanche from the jack stands.
11. Torque the Lug Nuts: Tighten the lug nuts to the manufacturer's specified torque using a torque wrench (if you have one). Refer to your owner's manual.
12. Test the Brakes: Carefully pump the brake pedal several times to engage the pads with the rotor. Test the brakes gently before driving normally. Do not drive the vehicle until you are certain the brakes are functioning correctly.
Important Considerations:
* Rotor Inspection: Inspect the rotors for wear and tear. If they are severely scored or below the minimum thickness, they will need to be replaced or machined.
* Brake Fluid: You may need to bleed the brakes if you’ve significantly compressed the caliper piston, causing air to enter the system. Consult your repair manual for bleeding instructions.
* Caliper Issues: If the caliper is sticking or the slide pins are seized, these problems need to be addressed.
* Professional Help: If you're uncomfortable performing this repair yourself, it's best to take your Avalanche to a qualified mechanic. Brakes are a critical safety system.
This is a simplified guide. Always refer to your vehicle's repair manual for detailed instructions and safety precautions specific to your Chevrolet Avalanche 1500 model year. Incorrect brake repair can be dangerous. If you are not comfortable performing this task yourself, consult a qualified mechanic.
