Used original master cylinder taken off my 70 Duster that had Disc on the Front and Drums on the rear. Worked fine when I removed it, but would reccomend rebuilding it. Rebuild kit comes with it. Best reasonable offer plus shipping. Located in Ohio

 

Sorry. Master Cylinder is spoken for. Will let you know if deal falls through.

 

Because I didn't know what to ask for it! AS long as someone made me a reasonable offer (which they did). I sold it!