These trucks were originally mated up with a 5th wheel camper and the tank was for LP gas for the camper. My older cousin and her husband had one of these units years ago. The Dodge was underpowered, hot, noisy and had poor handling, but this was years ago in the 60s-70s. They came to the 50th anniversary party that I had for my parents in 1985 and had a new Ford 350 custom van with 5th wheel cut back, dually, 460 gas powered rig, but with the same 5th wheel camper that came with the Dodge way back when. It was a nice camper, I think that a company in Indiana did the original conversion of the Dodge/camper setup.
Mad Mackie in CT:laughing::biggrin::smile: