He is correct. The black rims and the ones he posted are 8" wide and the only tire that will fit them are the nitto trail grapplers. At least these are what I've seen on the black Rams with black rims. Those tires are expensive and they wear quickly. I just lifted my Ram Black and ended up selling the black rims and putting afternarket rims and went with the new Nitto Terra Grappler G2 35x12.5x20. They offer a 50K mileage warranty and look great. So anyway. The rim will fit but most 12.5 wide tires will not fit. Just look up the tire specs for whatever brand you're looking into and it'll tell you what width rim is needed. I think I've seen Maxtrac post saying they have confirmed guys running stock rims with 35's with no issues. I'm not sure if there would be rubbing. My new rims have a -12 offset. Email Maxtrac they have excellent customer service