With my KE20 i adapted ke70 hubs/rotors(bigger9"from memory) and calipers fitted a c20 vanette master cylinder 3/4"bore diameter/remote reservoirs vertual bolt in(apart from being a tandem m/cylinder) and for the rear went to ke30 6" diff head in ke20 housing with ke30 axles and larger wheel cylinders this changed the stud pattern to 114.3x4 and stops it a hell of a lot better.