I'm in the process of a complete rebuild of 2 ton brakes...... the front cylinders are an issue foryou must have original ones the newer ones have the hole where the brake line attaches straight out so the brake hose hit the king pins. I had a machine shop hone out the orignials w/a rebuild kit wait till you get to the back........be careful of the springs different colors go in different holes the originals have donut type gaskets/seals not cup type.....
