Thanks Tim. It seemed appropriate to the original thread to reveal what happened to the truck.
The Denver area Craiglist carried an advert (originally posted here by draganm) for a collection of 40s and 50s trucks. I asked a friend over in USA on a visit some time later to look it up but the advert had already timed out. Some while later I did a search (just out of interest you understand…..) and eventually found it re-listed. With some more help, a 1,200 mile haul to Galveston and a ferry ride later, here she is.
Unusually (in fact I've not come across this before), the data plate is stamped with the allocated W registration number for the truck, also the USAAF contract number. It also confirms it as a truck-tractor. Does anyone else have a U.S. data plate showing the registration number?