What is your current tire size? A 2” diameter change could differ greatly than 1”. I have a Z71 and added a 1” strut extension up from. Running a 33.5” tire with very slight rub in reverse and full turn only. If you go any larger on a tire you will need to do at least a 3” lift. I have done quite a bit of research. I don’t have magnitude so can’t help there, but this info above should help on your decisions for tire size and needed lift.