To change the front rotors, you'll simply:
1. Loosen the lug nuts: Before jacking up the vehicle, slightly loosen the lug nuts on the wheel you're working on.
2. Jack up the vehicle and secure it: Use jack stands to securely support the vehicle. Never work under a vehicle supported only by a jack.
3. Remove the wheel: Remove the lug nuts completely and take off the wheel.
4. Remove the caliper: Use a caliper bracket tool (C-clamp style or similar) to compress the caliper piston. This will give you enough clearance to remove the caliper and hang it out of the way with a wire or bungee cord. Be sure to have a container to catch any brake fluid that might leak.
5. Remove the rotor: Often, the rotor will simply slide off after removing the caliper. If it's stuck, gently tap it with a hammer to loosen it.
6. Install the new rotor: Install the new rotor, ensuring it slides on easily and smoothly.
7. Reassemble: Reinstall the caliper, ensuring the brake pads are correctly seated. Then, put the wheel back on and tighten the lug nuts. Lower the vehicle.
8. Torque lug nuts: Use a torque wrench to tighten the lug nuts to the manufacturer's specifications (check your owner's manual).
If you are trying to replace the rear rotors (which are less common on a Blazer), then you *will* need to address the parking brake. In that case:
1. Locate the parking brake cable: It connects to the rear brake backing plates.
2. Release the cable: There will be a mechanism to loosen the cable's tension. This is often a star-wheel adjuster that you can turn with a screwdriver. You may need to remove the dust shield and/or backing plate to fully access it. Consult a repair manual specific to your vehicle for precise details. Be careful not to over-adjust the parking brake cable.
3. Follow the same steps as the front rotors: Remove the wheel, caliper, and drum (not a rotor in the rear). Once the drum is off, you'll be able to access the parking brake shoes and any other components involved in the rear brake system.
Before working on your brakes:
* Consult a repair manual: A repair manual specific to your 2000 Chevy Blazer 4x4 LT will provide detailed instructions and diagrams.
* Safety first: Always use jack stands, wear safety glasses, and be cautious when working with brakes. Brake fluid is corrosive.
If you're uncomfortable working on your brakes, it's best to take your vehicle to a qualified mechanic. Brake work is critical for safety.
