On the 18" trd wheel, not sure which size to get. BFG AT's arent cheap so I want to make a good choice. Of course I want the 305's and I know the truck can take the 305's but I'm concerned about having too much tire on the wheel as the 305's are considerably larger than stock. I've seen a new set of BFG 305/55-20 on a factory wheels where the edges of the tire were not hitting the ground due to the width of the wheel "pinching" the tire and causing the center to bow out causing uneven tire wear at the very least. Man it looked so nice, but function before form for me... I'd really like to hear experiences from those running the 305's in 18". All replies appreciated.