No, this isn't "How big a tire can I run on my sagging stock suspension?" Instead, I have a good problem. I pulled my 3rds to have precision gear 4.88's installed and plan to run 315/75/16 tires. I will be wheeling the truck in Moab, and possibly the Rubicon in August, but my FJ40 gets the call if things get rough. So in terms of tires, I am leaning toward MTR's. However, trying to be logical, I'm thinking BFG AT's might be a better choice, since most miles will be street miles and Moab could be run on slicks I think. The AT's would have much better tread life, a quieter ride, and work better in the rain. They seriously lack in the trouser factor though, and for that reason alone, I am leaning toward the MTR's. I have favorable experience with the MTR's on my FJ40. Any other candidates? Anyone know about those new Firestones that are supposed to be great off-road tires? One other thing, I have 2 sets of wheels but can only afford one set of new tires right now. Should I mount the 315's on my stock wheels or my black steel rockcrawlers? Mr. Moderator-I don't want or need swampers, this truck sometimes has to make the commute.