Those trucks were made to carry a Ford brand camper that I believe was manufactured by Four Seasons.
That was the same company that produced these "factory" camper shells for Ford back in the '70s like the one here on my '79 F-250.
I didn't read every comment but the spare tire was carried vertically in a side compartment due to the real axle being moved further back to help with the heavy payload.
I worked with a guy named Steve Kersey back in 2009 while working at a Ford dealer in Salt Lake City.
He worked for Ford back in Detroit when they designed that F-350 and he was the one who came up with the design for the spare tire.
They gave him a brand new Ford LTD and a check for $7000.
