When replacing pads you must clean the exposed portion of the caliper piston with brake cleaner or brake fluid before the piston is retracted into the piston housing. This procedure will avoid damage to the piston seals.

When the car is raced weekly, we recommend replacing the seals once at mid season and rebuilding between seasons. For lesser used cars, seal replacement between seasons is fine. Always flush the system with fresh brake fluid after any seal replacement or rebuild.