you have it backwards, typically the alloy 15" wheels allow more clearance than the steelies. search post by discount tire on here about the alloy 15" wheels they carry.

there are several choices of 15" steel wheels that clear the brakes though. i ran 15" streetlock wheels with 37" super swamper tires on my last jk and had no problems. i also wheeled pretty frequently too

 

Thanks for the informative posts. I know which 15" wheels fit my rig as I've done the research already.