Early A width?

I think I remember seeing somewhere the difference between the front frame rails from early A to late A was something like 1.5" narrower on the early A for each side, so 3" total more narrow on the early A.

That said, I don't think there'll be a ton of difference In the brake line kits. Certainly not enough that you cannot cut and reflare here and there to make it work.

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?