TRYING TO GET SOME INFO ON THE TRUCK I JUST GOT. THE TITLE IS 53, BUT THE GRILL AND BOX ARE 54. I WAS TOLD THE TRUCK WAS USED AT AN ARMY OR NAVY ORDINANCE (BOMB) CENTER TO HAUL AROUND BOMBS. IT HAS A LARGE BACK DECK ABOUT 2 FT LONG TO HOLD STUFF. VIN NUMBER CAME BACK AS A 53, 3600 COMM 3/4 TON. GUY SAID IT WAS A 3100. TRYING TO FIND OUT WHAT A COMM IS IN THE INFO? WOULD APPRECIATE ANY HELP FROM YOU ALL. WAS ALSO TOLD THAT IT MIGHT BE A LATER 53 AND 54 PARTS WERE USED. DONT'T KNOW.