73 dodge dart swinger wheel and tire size?

racerdan80 said
73schwing, 245 60r15 on 15x7 with 4" backspace. 1" of clearance to springs in their stock location on a 8.75 axle. Everything clears and no rubbing

Hey I'm trying to see if a 15x7 with a 3.75" offset will fit all around and with what tire