Hey guys so I have a 2006 300c srt8 and I believe my rotors are bad , when stoping from high speed the pedal and steering wheel will shake but if I press it hard it'll get a lil better , anyways everybody is telling me that my rotors are bad , how do I check them or how do I know which one is bad ? Sometimes the car makes a lil noise on the rear left brakes but only when I don't drive the car for days , any help will be appreciate, thanks