I did a lot of research and here is the good news if you want to convert to normal hubs and wheels. A Dexter 6000 pound 6x5.5 lug hub fits the axle. Same is true for the brake kits available for these axles, but you have to weld on a flange for the backing plate. Plug this number into ebay 260344947324 This is a complete kit for one axle. They also have complete brake kits with the same bearing dimensions. Basicaly you can put all new hubs, bearings, seals, etc, on one axle and all this, plus brakes on the other for 300 bucks. Then run 6x5.5 truck wheels and tires, which will much easier to aquire on the road. I am not interested in starting a post about the legalities, or other chatter about the quality of the dreaded MH axle. My flat trailer has had MH springs and axles under it for 15 years without a single issue. As a matter of fact several of your rigs have ridden on it. The biggest issue is the hassel with the throwaway brakes and the rim clamp style wheel. This solves those issues with easy to find, current 6000 pound parts and tires.