Rim for Plymouth DUSTER 1973

This is for the same car in this thread? Plymouth Duster 1973 small block wheels

So, V8 car with factory 5x4.5" bolt pattern, disks up front, drums out back and either a 7.25 or 8.25" rear axle. My answer is the same as it was before-

15x7" front with a 4.25" backspace. 15x8" rear with 4.5" backspace. Max front tire is 225/60/15 and max rear tire is 275/60/15.

There is no point in trying to run a 15x8 up front. None. Widest tire you're going to get up front with a 15" rim and a non-custom backspace is a 225/60/15. Those fit just fine on 15x7's. Same for the rear. Widest tire you'll fit back there without hanging it out of the wheel wells is a 275/60/15, which fit just fine on 15x8's. The "measuring rim" for the tire specs is actually a 15x8, and the absolute widest rim a 275/60/15 is supposed to be mounted on is a 15x9.5".