I don't think it will fit. I have a 4 inch BDS and running 33x12.5R18. I've been considering trying to run a little larger tire, but after running some backroads last weekend, I'm not going to do it. While I was running the forest service roads, I stopped and parked my truck on the side of the road in such a way that my front steering side was full compressed, while my passenger front was fully extended. I was within about an 1/8 inch of rubbing on both sides Basically, what that told me is that if I'm taking my truck off pavement, which I do quite often, I need sufficient room to allow the suspension to work properly. I guess if you're never off pavement, it wouldn't matter, but if you're going to use your truck for work or going off-pavement, I would make sure you have enough room in the wheel-well for your suspension to operate properly.