The front frame rails have been patched and the grille is from a CJ-2A, so I can’t tell if this is an M-38 or an M-38 body on a CJ-2A chassis.
https://tampa.craigslist.org/psc/cto/d/dade-city-1948-willys-jeep/7030381344.html
“4 Cylinder 134 “Go Devil” motor
12 Volt conversion
Runs like a sewing machine”