Early A width?

Thanks, that is what I was thinking as far as making small modifications. I was just curious as to what the width difference was as I have never seen reference to that.
Inline tube makes a custom kit for the early Cudas to convert to a double circuit master cylinder but it is for front and rear drums only. I wouldn't go to the trouble of swapping the master without going to front discs. I pointed that out to them and their response was "sorry, we specialize in GM brake kits". Yeah, well eff you too A-holes.
Do you know of another supplier that is more friendly to Mopar folks?
Maybe somebody like Van's Auto. Dr Diff may sell brake line kits. If he does, that's where I'd go.