George,
The panel body fuel tanks from 47-55 were 16 gal for 1/2 ton and 18 gal for 1 ton.
The 1947 1/2 ton pickup tank held 17.5 gallons.
I do not have dimensions for the 3800 frame, so I would not venture a guess whether the picture I posted above is for a 1/2 ton or a 1 ton. There is an extra cross member in the 1 ton and the overall frame length is 40" longer than the 1/2 ton.
JC sells a different tank for 47-48 1/2 ton pickup vs 47-55 (really 47-53) 1/2 ton panel body. He lists his mounting straps for 1/2 ton panel body tanks as being for 47-55 also (most likely the 47-53 "straps" are different from the 54/55 straps)?
When you state that the gauge sending unit is mounted in the center top, are you referring to the 47-53 1/2 ton panel tank and/or the 47-48 1/2 pickup tank?
Thanks,
Tim
