Just keep in mind that BFG doesn't make a 33x11.5 for a 15" rim. Its an odd size, think Interco might make one and I know Goodyear makes a tire not avaliable to the public in that size, but thats it.

As for a wheel spacer, I sorta thought that to begin with. But thinking about it, I've never talked face to face to a person that had problems, its always a case of "I heard that my cousin's daughter's uncle's brother's best friends great aunt's son had problems..."

I've pounded the snot out of my truck in high speed offroading and not a problem, not even a loose lugnut, I give them two thumbs up, no problem. But I understand your apprehension, they get a bad rap...