Derrick?

[Larry Hayward]

I presume its lay out would have been similar to the body on the attached photo of a Ford F60S. Vehicles such as this were also issued to the Australians, as my father found one on its side at Balikpapan in 1945. He recovered it and put to good use changing C-47 engines on the airfield. Presumably the derrick body for sale in Canada is a later version than the one in the photo - just a guess!