Hey Scott,
That's definatly a war year truck which would be 42-45.
Very similar to my truck. The 42-45 trucks had a painted grille & the hood spears were black with white letters.
Mine is a 45, it's a 400 series truck, which is a 2&1/2 ton with the heavy channel bumper in front.
Yours looks like it might be a 300 series truck, where it has the smaller bumper.
Also, the door lock cylinder on a 41 was in the handle. 42-46 had the lock cylinder in the door, just below the handle.
It looks to be in great shape! Nice find!

Last edited by JeffL; 11/29/2011 3:09 AM.