Hey Jim, thanks for responding so quickly. The calipers I have are 4 piston Budd system, and I will probably need everything to rebuild 2 calipers. I have an original service manual which comes in handy for us mechanics, and the illustration shows pretty much a few seals per caliper. Right now they are in the hands of a brake shop in Lancaster PA and last word from them they couldn't locate pistons. Would you have steel or nylon pistons? Either one would suffice, since the car is on jack stands presently. I'm hoping to have it up & running for Carlisle next week. T.L. > I have kits and/or pistons available. > Jim Harris > 68 convert > 67 convert for sale cheap