They are large steel discs that are bolted directly to the outer axles and absorb the pressure of brake pads to slow the vehicle. Theyare generally easy to remove and cheap to change. If good, they will look shiny and smooth. If scored or blue, they need to be changed.
( 2 rotors on the front ) one for each DISC brake
There should be two rotors if your truck is 2wd. They are located where the brake pads clamp to. Rotors are also called brake disc. It's the round disc between the brake pads.
Brake drums can not be cut. The shoes inside can be replaced.Only disc brakes(rotors) can cut.
when there is a visable rigde / lip on the edge of the disc (rotor) when there is a visable rigde / lip on the edge of the disc (rotor)
If the truck has disc brakes on the rear then the park brake shoes are located inside the rear rotors. You have to remove the brake calipers, pads and rotors to access them
It's pretty straightforward. You will need to change the spindles, brake lines, brake hoses and master cylinder. You will also need to install a proportioning valve from a disc brake car, preferably another Chevelle. Stick with stock calipers and rotors if you intend on using stock wheels because many of the aftermarket disc brake setups have larger rotors and calipers that will NOT work with stock wheels.
Remove wheels. Remove 2 bolts securing brake caliper. Slide caliper off and support. Rotors should slide off.
There no way to prevent them getting hot unless you don't brake
A frozen brake caliper or if you just instaled new brakes and rotors you might have oil on the rotors as they need to be clean before installing.
Disc brakes ( with small brake shoes in the back of the rotors for your parking / emergency brake )
Are you sure the rotors are chrome. If they are chrome plated, the plating WILL wear off. They may be made of a Chrome Moly steel.....which is typical for rotors because of it's strength.
It would depend if your car has 4 wheel disc brake or only the front (2) has disc brakes. You would have one rotor for each wheel with disc brakes.