Well I ended up selling my '46 3/4 ton stakebed. Neighbor complained to the HOA because it wasn't running. Some rule about non-operating vehicles not being allowed to be parked in the driveway, blah blah blah. I hate Home Owners Associations (and the people with no lives who run them).
Anyway, I found what was listed as a '39 Chevy and bought it. However, from what I've been able to figure out from the photos it is really a '40. (it's not here yet, it's sitting on the transport vehicle). I also never asked what size it was, 1/2 ton, 3/4 ton. I've been looking at photos and it seems that there was also a short bed and long bed in that year. I tried to get the Service Manual for the '40s but the pages with all the truck specs is missing from the one on OldCarManuals. Anyway, in the photos I've seen one version has very little distance between the bed side upright support and the front of the rear fender. I'm guessing this is a shortbed. The other photo shows much more distance between these two areas, so I'm thinking this is the long bed version. Any thoughts?