Can't say. I got one from Rock Auto maybe 3 or 4 years ago for $110 plus shipping and you couldn't have had a more accurate lineup for the filler, vent and lower outlet. The tank was made in Canada and I think the name of the company was Spectrum, Spectra or something like that. I was very impressed with the way it was built and packed. I did have to work a bit on the rubber cab grommet, but you want that to be a tight fit.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end