How are people running the 1/2" spacers between the rear duals? If I move my outside rim out a 1/4" it will not be able to center itself off the hub because the hub tapers down. I have stock wheels and need at least a 1/2" spacer on each side to clear my 285/75/R17's. My lug nuts only have about one thread to spare so I guess I would also have to get longer studs. Can the holes in the wheels be tapered so the wheels will center off the studs instead of the hub. I haul for a living so I need this to be a long term reliable solution. I want to keep the spacer as narrow as possible.