not sure, they were on an aftermarket front end I picked up that was really worth the money. only thing I did was install it and build strut rods for it.-------72 blue, not sure it`s worth the effort at this time, but what alum. Chrysler master cyl has the 15/16 piston ? mine does not have that big of a piston as you said, might have forgot what I did use !?? I know it`s under and inch.
