Trucks used by the U.S. Army in world War II that were 2.5 tons and larger. Such as Studebaker US-6, International M5-6, 4 Ton tractors (Auto Car, etc.), 5 Ton (Corbitt, etc.), the Dragon Wagon, and any other trucks 2.5 tons and over.
If you have an M5 running or not even if its beyond help and a parts truck please come on over to this link and please add any info you have about the truck to the registry there are so few of these trucks and even less info about them for the collector to use when restoring one.