I've seen 265/75-16s fit under the Jeep. They might have to be aired down a bit though. But 31" and under will fit no probs. And as far as I know all 08-12 16" rims are the same style. Arctics come black, 08s and Renegades(I believe) have a different color, it's more 2 tone grey, and 09-12 should be the same silver/gray color.
2011 KK - Skyslider - JBA Adjust-A-Strut - OME 731 - Bilstein Shocks - JBA UCA- 245/75-16 Duratracs