Just curious is any body running anything bigger than a 315 or a 35 inch tire on there 3rd gen truck? I have 4.5 inch suspension lift and 3 inch body lift and I'm just curious as to what might fit. I know a 37 will fit but I was wondering about a 38 or a 39 incher. Thanks

 

Depending on your backspacing and rim width...37's will not fit./ Search and find many many threads. In short, I played around with it and gave up on 37's and settled for 35's with the same lift as you. I needed more backspacing and fender trimming...either of which I could not do at the time.

 

According to TuffCountry, you need the 6" lift to fit 37's.

 

3 + 4.5 = 7.5....I think he's got it.

--D

 

Sorry..missed reading the body lift. I would think the 37's would fit...but still try to keep the rim tucked in near stock specs to make sure they don't hit under extreme flex at steering lock.