Dodge Challenger Wheels

Here a thread with a bunch more discussion (same thread as above, but starting from the top):

http://www.forabodiesonly.com/mopar/showthread.php?t=74008

In the thread, 2 different people used spacers on the front, 1/2" in one case and 3/4" in the other. The 1/2" spacer was to clear the hub interference, didn't dig to see what was up with the 3/4" spacer. I suspect that if you opened the wheel up or turned the hub down a touch, you could run the LX/LC 18" wheels without a spacer. I know for a fact that 17x8 Mustang wheels work with a 245/45R17 tire with more offset, so a 7.5 wheel with a narrower tire and less offset should probably work fine once you get past the hub interference (not bolt pattern, hub diameter difference).

In the rear, one guy ran a 1/4" spacer and was a little tight with a 225/60 tire, so I suspect that a stock width axle is a little narrow. The other guy ran a 1" spacer in the rear. Not a lot different than the issues you run into with a Mustang wheel, the A-Body just needs a wider rear axle to run a modern wheel.