Tools you'll likely need:
* Wheel wrench: To remove the wheel.
* Jack and jack stands: To safely lift the car.
* Lug wrench: To remove the lug nuts.
* Hammer (preferably a rubber mallet): For gentle persuasion.
* Penetrating oil (like PB Blaster): To loosen rusted parts.
* Pry bar (optional, use cautiously): Only if other methods fail.
* Torque wrench: For correct reinstallation of nuts and bolts.
* Appropriate sockets and wrenches for the various fasteners.
Steps:
1. Safety First: Park on a level surface, engage the parking brake, and use jack stands to securely support the vehicle. Never work under a car supported only by a jack. Disconnect the negative battery terminal.
2. Remove the Wheel: Remove the wheel using the lug wrench.
3. Clean the Rotor: Thoroughly clean the rotor and hub mating surfaces with a wire brush to remove any rust, dirt, or debris. This improves the chances of a smooth separation. Apply penetrating oil to any rusted areas. Let it soak for a while.
4. Remove the Cotter Pin and Castle Nut: Locate the castle nut on the end of the spindle (axle). Remove the cotter pin securing the castle nut. Then, carefully remove the castle nut using a socket wrench. *Note the orientation of the nut and cotter pin for reassembly.*
5. Remove the Rotor: Now, try to pull the rotor off the hub. It might come off easily, or it might require some persuasion. Start by gently tapping around the circumference of the rotor with a rubber mallet. Avoid using excessive force, as you can damage the hub or rotor. If it's stuck, apply penetrating oil again and let it sit. If it still resists, use a very gentle pry bar, placing it between the rotor and the hub. *Be extremely careful not to damage either part.*
6. If Still Stuck: If the rotor absolutely refuses to budge, it might be seized due to corrosion. You may need to use heat (carefully!) to expand the rotor slightly. Apply heat evenly using a propane torch, avoiding excessive heat which could damage the rotor. Always be extremely cautious when using heat near brake components.
7. Inspect the Hub and Rotor: Once separated, inspect both the hub and the rotor for damage. Replace any worn or damaged components.
8. Reassembly: Reassembly is the reverse of the removal process. Remember to torque the castle nut to the manufacturer's specifications (consult a repair manual). Don't forget the cotter pin.
Important Notes:
* Repair Manual: A 1975 Corvette repair manual is highly recommended. It will provide detailed diagrams and torque specifications.
* Professional Help: If you're uncomfortable with any of these steps, take your car to a qualified mechanic. Brake work is crucial for your safety.
* Rust and Corrosion: On a car of that age, rust and corrosion are likely significant factors in this process. Take your time and be patient.
Remember safety is paramount. If you're unsure about any step, seek professional assistance. Improper brake repair can have severe consequences.
