I have a 1985 f250 4x4 with a 460 big block. I just bought a rust free f150 2wd exact same year with the 302. Identical trucks both are explorers. The half ton is only a single fuel tank. I am wondering what are my best options on swapping the beds out. I’d really like to keep the dual tank if possible. If not, would the bigger fuel tank like what is on the f150 fit under the truck?