I saw your "how to" thread and ok'd it. I see this is in Brakes now. :BangHead::BangHead: At least your information is out there. I forgot about the grease gin approach to force pistons out. I have never rebuilt calipers but These KH's are hard to come by. Getting the rust pits out of the housings would be the hardest. I imagine the rebuilders machine to a larger bore and use a different piston.
