Anyone done this? I'm considering getting some of the stock 8-lug 19.5" DRW steelies that came on some of the P-vans. They would be going on a C30 SRW. Are these going to clear the 13" SRW drums? (I know the 16's don't) How about the track width? Where would the outside tire be in relation to the box sides? Any peculiarities about studs, lug nuts, or wheel centering?