Will an original 47.2/48 under the bed tank fit? Did the 49 frame change from the 48? What about fitting a 48 tank forward of the rear axle on a 54 3100? I have been thinking about moving the gas tank in my 54 3100 out of the cab. I just recently added an underbed spare tire carrier so I would have to put the tank in front of the rear axle where they were located in 47/48.
