How is it best to release stuck pistons in 2002 gt (twin piston) caliper so that there would be somewhat lesser drag between piston and seal? (the problem - passenger side wheel is dragging with engine off too) Has anyone attemted to do this with success instead of buying new/rebuilt calipers? Do I have to disassemble the piston off the caliper to clean it or is there some less-invasive trick? For others, do not use pliers to pull the piston off the bore - the pistons have a ceramic layer that cracks once you grab it with pliers!!!