Hey Wetwilly,
Just thought I chime in on the gas tank topic. The pickup truck tank (17.5 gallon) will work in any of the different size trucks as you mentioned, however the really big bolts (56-59 Series 7, 8, 9 & 10) had a 21.5 gallon tank. It has a different pickup/sending unit, longer hold down straps and a different filler neck.
Mike B
