[CustomCab66]

Added a proportioning valve from an 84 3/4 ton that had disc brakes. Should be just what I need. Running brake lines is not my specialty so after 12 feet of 1/4" line and 20 grey hairs later I managed to separate the front braking system from the rear. The original brake lines are in great shape so I just extended the line that feeds the rear brakes on the passenger frame rail to the proportioning valve on the drivers side.