A body with New Challenger Wheels

A 5x115 will fit on a 5x4.5 and vice versa. They are not the same size but they are close enough that it's hard to even tell the difference. You are talking less then a milimeter! I bet the modern LX cars use bigger studs too which will make even more room on the older cars (I just looked it up the LX studs are .55 in compared to .5 on a 73 up A body). The only problem is sometimes the hub hole isn't big enough or the front dust caps stick out too far for the center cap. They can be machined or use spacers on the front. I'm not talking specifically about the LX wheels here but some after market 17s I had laying around.