17. Lastly, we mounted up the 17x8.5 one-piece forged Weld Racing Method wheels and LT285/70R17 (32.6x11.7) Nitto Dune Grappler tires. We opted to increase wheel diameter by 1 inch over the stock 16 inchers. We did this for several reasons, including the fact that we want to add bigger brakes down the road. When combined with our new tire size, we also have a good aspect ratio.