What width Dana 60 for a 70 Dart?

I have a Strange S60 in my ‘70 Dart. With the common mini tub and springs relocated, my axle was 49 5/8, wheel mounting flange to wheel mounting flange, using willwood 12.19 brakes and 4 piston dynalite calipers.

I’m using American Racing Torq Thrust D wheels 15x10 with 3.75” of backspace with a 295/50/15.

I later went to a 17x11 with 4.25” of backspace with a 315/35/17 tire.

The 17” wheels had to be custom made with that backspace to fit my axle, as it’s not a standard size wheel like the American Racing wheel.