I used the dually pickup axle so I'd have the right width for the bed and still be able to run dually type wheels as singles like on the factory built F350 9' express I sold last spring. Had I kept the factory stakebed rear axle, I would have had to cut out the inner fenders of the bed and still not had 48" between the wheels. I think It would have made a cool dually, but I run a cabinetshop and need the 48+" between for plywood. I also have a nice '63 Alaskan camper that I intend to load in every now and then. F250racer, I like how you have yours set up, but with this extra width axle, I don't see it on mine.Thanks for all the nice comments. Here's the 9' F350 factory job I just sold.