mk2 rear calipers are notorious for binding. most people either fit late mk3 or mk4 calipers, but the mk4's need an adaptor hose.
I've been wondering if one has already been changed as the cut outs on the pistons are different. One side has a cut out that is rounded off at the ends the other side is more angled to a point. Does that make sense??? Why do the pistons bind up so much and is it just a straight swap?
