The body is atop a Ford chassis. Note the unusual column steering mod! Thanks to Andy for sharing.
https://www.facebook.com/commerce/listing/1147838629810352
“Very Rare! Rust Free! Montana Title – 1951Willys Panel Truck. Has Ford running gear. It doesn’t Run, but I have the title. Ready for your Hot Rod build. Call Lloyd for more information. He’s old and doesn’t do the internet or texting.”