Sure, some combination will fit, but if you could share more about your Camaro, that could help. When you say it has discs, what do you mean? OE front discs with drums in the rear? Aftermarket discs all around? Is you car lowered at all? If so, how much? Spring or spindle?
In general, an 18x8.5 wheel is going to be tight up front with a 235 to 245/40R18 tire, but it can be made to fit with the right backspacing. You may rub a little at full lock, but nothing a little work on the steering stops can't take care of. Since the Summit Legend's are somewhat limited with respect to backspacing options, you'd probably need to run the 5.125" BS wheel up front as the 4.5" BS will put you into your fender for sure if you have or want the typical P-T stance. You can always reduce the BS with a spacer if you have to...going the other way is a bit more involved.
HTH,
Tobin
KORE
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