I think at this point I'll just remove the factory spare tire tools and the factory spare tire mount. I don't plan on ever needing two spares since I won't be getting that crazy with the truck. I'd prefer to not have to hack up my exhaust or bumper mount or change the rear bumper just to fit a 37" spare under there that still may or may not fit. I've got BFG KM3's on there now, and I highly doubt even with a lot of modification it'll fit under there. I'd considered keeping the stock tire under there, but I figure if I've gotta go that far to remove front wheel, put it on the back, and put the 35" spare onto the front that's more work than I probably care to deal with for a flat tire, and it's not as if I'm out of the woods at that point still. At least not having two spares will keep some weight out of the back.