I will watch this thread as I have the same problem. Just purchased a '37 from a fellow bolter and the gas tank was replaced and moved under the bed a long time ago.

If someone knows of a modern reproduction let us know.

Since you have the original tank you have one option. Look into "Gas Tank Renu" as their website says they have affiliated shops in Canada. I used them for my '47 Diamond T over 10 years ago and am happy. They cut holes in the tank to sand blast the interior, allowing them to visualize the inside, even if there are baffles. The inside and outside are coated with some sort of plastic material and then baked in an oven, after the holes are braised closed with plugs. I recall they said they could even repair a tank that was swiss cheese with rust holes. It is pricey (cost me over $300 ten years ago) but if there is no alternative it is worth it.
Since I have no tank to start with, can anyone answer John C's question?
Kent


1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix