They did not have any a year ago??Try Tanks Inc. www.tanksinc.com 320-558-6882 May be an old phone #.
Yes they do list a tank for ford trucks but it is under bed not under seat as the original one was. I built mine under bed because the original ones are really hard to find in usable shape. I found three but once cleaned up they were junk. Can`t wait to start on my 53 as they have lots of new stuff available for them.Rock Valley Auto, i believe sells the 47 Ford truck tank. Ken