SOLD.. I got a pair of 67-68 cadillac eldorado disc brake calipers with parking brake from a wrecking yard to use as a core exchange for new calipers. Except i didn't know they were 67-68 until I got the 79-85 calipers that i actually needed. The older calipers are larger piston than the newer ones. Anyone interested in these or should I just exchange them for the right ones? They look like they are in good shape.