Question does mopar make a factory rally wheel

Did you have to relocate your rear springs for the wider tire ?
No, when I looked, I'm pretty sure I was running a 15 x 7.0 Rallyes. And that was front and back on a 66 Formula S, with totally stock original suspension. When I ordered the Minilites I dialed it back to 15 x 6.0 on all 4.