I'm thinking that Kansas truck is a 47, 48 or 49, not a '51. It has the fuse box for 5 fuses. 50 and later has only 2 fuses. And it has the side cowl vent and under bed gas tank (47-48?) I also think it might be a 3/4 ton, as I see what looks like a split rim on the right rear, which wouldn't be on a 1/2 ton. But the cab and front clip sheet metal look in good shape. And it has a rear axle, so can roll, as opposed to the one that Dan found, which has a 5 window cab.
