New 3/16" steel, like the factory used. new everything. The pushrod was no problem. I had to use an offset master cyl., it is the reason for the 1/2" , 4 to 2 hole adapter, so it would clear the valve cover. The diplomat master cyl. does not hold any pressure, no check valves anywhere on mine. Lke I said, the pedal feel is about twice what normal disc brake systems are, but my engine slows my car down pretty good when I let off of it..