Could they be using up driver's-side-fill tanks left over from earlier trucks? (Probably not.)

Mine's on the passenger side but it has a home-made wooden flatbed.


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.