i went to the ultra website and found that they have a backspace of 6 5/8 with an offset of +35. i haven't regeared my truck... but i was a lil disapointed with the power that i lost by going to that big of a tire... i mean its not super bad but i hated that it shifted alot so i bought a supercharger for my truck and that helped out amazingly great

What was your back spacing on the rim that you used? example 6.43 "?? Let me know

Thanks

325/50/22 nitto terra grapplers... they are a 34.81 total diameter and it is Damn close to fitting i did so much research before i wanted 20's but there is no way to fit them with a 35 inch tire... just to much of a jump goes from 305 to a 325 they need to make a 315 There is a 2.5 leveling kit and i had to trim the inside of the fender flare and the front plastic facia but if someone were to look at it i cut it so it looks factory would never notice... No rubbing on my body at all... rubs on the upper control arm but only at full lock... you get use to it.. haha i love the set up tho