what is involved in rebuilding k-h disc brake calipers?????????????

I just went through mine, calipers, pads, rotors, bearings, seals, hoses, 170.00 w/o caliper core price. centric reman seem to be the cheapest core prices are high. I got them through fast undercar which is a wholesale dist, cant walk in and buy need a buddy in the know if they are in your area.