I haven't figured that out, yet. Based off rimsntires.com it says with the same tire size, it should be 100% bolt on with some extra room prior to having the leaf springs moved in. But I kind of want to go to a wider tire. A 265/35/18 seems like it would have worked with an extra +3-4 mm spacer on top of my +5mm spacer. But almost approaching half an inch, I think I'd want to install longer wheel studs.