have a 1990 cutlass ciera 3.3 engine real nice but right front brake sticks bad i have changed pads caliper rotor and wheel bearing all got so hot rubber parts were no longer there grease in ball joint gone have also changed master cylinder but still does same thing has a crossover master cylinder and does not seem to have aseperate proportioning valve do not want to spend any more cash on new parts till ican get figured out help and thanx