I have a set of 315/75R16 Maxxis Bighorns. Tires are in excellent shape but I'm wanting to go bigger. I have a full size MTR spare with little tread. Looking to trade my tire and wheel combo for your 36 or 37's on black steelies. I can run on 15 inch rims so that won't be a problem. Anybody want to down size or upgrade to 80 series wheels?