Cragars on a 1972 Swinger

Just curious as I am going to put 15 x 7 steeliies on both my cars. The 74 had 15 inch tires on it when I got it but there was some fender rubbing up front with the tires I bought. What size do you have on your 72? As for your last question there are different measurements for a lot of things in the rear end. My 72 had a b body 8 3/4 and I found an a body and replaced it. I know with 11 inch drums the steel 15x7will fit without checking. I also know I can go wider...but then I will have to take measurements.

Link - http://www.moparts.org/Tech/Archive/axle/16.html

So as you can see....depending on where the rear came from...measurements change.