A March 30, 1947, article in the Metropolitan Pasadena Star-News introduced the Forest Service’s ten new CJ-2As to California readers. These vehicles were equipped with two-way radios to aid fire control.
The article notes that a Weasel was being tested, along with the development of a four-wheel-drive vehicle that would be better for forest fire fighting, but I could find no references on the internet to an offload vehicle designed by Ira Funk.