[alanwoodieman]

I have mounted below the bed gas tanks in about a dozen trucks ranging from a 29 A to a 52. I went to tanks inc and looked over what they have, also speedway has a lot of gas tanks made for racing and have used a couple of them. 52 I use a filler door of a later model car and made it come out the fender with a neat hatch, so yes you can mount one under the rear of the truck