This should help figure out metric tires. DML Tire and Wheel CalculatorDon't mean to hijack the thread but how in the world do you decrypt those numbers? I'm also looking for rims /tires to replace my stock set. If the truck is stock, and riding on 18x8 rims, what's the biggest tire I can put on it without having to trim anything?
Thanks. That's helped a lot with the understanding of the numbers. Do you guys know if trimming the skid plate to avoid tire rubbing voids the factory waranty? There are pictures of a 4x4 crewmax in another thread that has some BFG's 305/65R18 on it and it looks awesome. But he had to trim the skid plate.