I decided to pull the rack off because I think I can make a raised bar that goes across the boxes up front. Something that sits right at cab height. So I've been working all weekend on it. Sold the rack and mounted boxes only. I had to make legs for the boxed that mount to the bed for support, made them out of 1" angle iron. Nice and solid. Removed about 200-300 pounds of weight and got rid of a huge source of drag. Now I can start working on mods like something covering the opening from the cab to the boxes and maybe even the top down to the boxes.
As soon as I get an idea of mileage gains I'll update the thread.
