1942ChevyPfost,
It is my understanding that only one of the 9(?) assembly plants continued to make civilian trucks during WW2. Folks wanting a civilian truck had to apply with the war department for permission, and they must have had a good reason which often was a supportive home front role. Most approvals were for farm and manufacturing, and most were for larger commercial trucks not pickups. Since your truck was produced one month after the Pearl Harbor attack, the nation was moving quickly towards the full time military production mode. You may have an interesting story behind your truck, take good care of it. Do you know for a fact that the truck was not used by the military as some civilian looking pickups were used for stateside details?
Paul