Ensure you use care while changing a rear disc brake caliper since asbestos may be hidden in the dirt and dust on the parts. Never grind or sand brake linings unless using dust-trapping equipment and you should not clean brake parts with compressed air or by dry brushing them. Rather, lightly wet your brake assembly with water and use a damp cloth to wipe it, putting the cloth and anything else wet in a proper container that won't leak. Handle and remove asbestos material based on the regulations from OSHA and EPA. To flush or clean the brake caliper's inner channels, apply fresh brake fluid or Mopar(R) Non-Chlorinated Brake Parts Cleaner, since gasoline, kerosene, alcohol, oil, transmission fluid or any mineral oil-containing fluid might damage the rubber seals and cups. While checking the caliper, look for brake fluid leaks close to the rubber boot and at the inner part and make sure the piston boot and guide pin boots are not torn, dried or brittle. Should the caliper not pass inspection, remove all parts, clean them and install replacements for any worn out seals or dust boots needed.