Disc Brake System: Service and Repair

BRAKE ROTOR, DISC
Each time the brakes are serviced the front and rear disc brake rotors should be checked for scoring, runout, parallelism and thickness. Front and rear disc brake rotor scoring and runout may be checked with the front and rear disc brake rotors either on or off the vehicle. To check parallelism and thickness, the front or rear disc brake caliper must be removed.