Damn here I was thinking this was going to be easy. Well, I'm glad you guys hopped in. I will be sure and get good information and pics of what I figure out. I don't really want to install an f150 gas tank on my truck. That's almost like wearing my wife's panties to me. I would like to keep my spare tire, I will figure something out.Based off my measurements between my two trucks...I don't see how it will ever fit. I was in your exact situation about a year ago, but mine stayed a long bed because of this and a few other reasons. It has been done before using a f-150 tank tank and excursion tank, but the excursion tank will need some extensive frame work to fit and looks terrible, IMO.