Not sure if this will help, but Frank McMullen sent in
this picture which looks a lot like Dennis' deal ... but all in one piece.
Frank's message:
"A friend found this somewhere on the 'net ... looks like a really huge airfield tug; don't know who the truck builder was but they used '52-'53 AD Chevy/GMC cabs...
"Figured that someone here in Stovebolt world can pin a defnitive ID ..."
Peg