After a run to Death Valley this past weekend I realized that my 10gallon fuel tank just dont cut it, especailly since I only get 13.5mpg. I am running a flat bed so I have a little more room than a stock truck but it is a short bed so the long 16 gallon tank wont fit between the crossmembers. My brother in law Trackvino has a 16 gall sqaurish tank out of his old blazer that he parted out. If it will fit up under there, will getting the tops switched that way it works with my truck be worth it? What did you guys do?