My apologies if this is something that has been posted before. I am going to be manufacturing a fuel tank to be mounted under the bed between the rails behind the rear end. I know many think this is not as safe as keeping it in the cab but I myself would prefer it elsewhere. What I am hoping is someone has done this before and maybe has the measurements of this area. Also, I am going to have airbags so the body sits on the ground so the tank cannot hang too low. Does anyone have some dimensions they will share? It could be 10 gallons if thats what it takes to achieve this goal. Thank You in advance!!