UPDATE: Price dropped to $5000.
(04/20/2019) The M-38 has a few updates. This might have a set of Kelly Hubs.
https://albuquerque.craigslist.org/cto/d/albuquerque-1951-jeep-willys-m38-trailer/6875975506.html
“1951 willy’s m38 military jeep with trailer. runs drives and stops. very good condition. $5000 obo with trailer.
$ 4000 for jeep $ 900 for trailer alone”
What kind of motor is that? Doesn’t look like an F-Head.
I’m going to guess it’s a Ford Pinto engine.
It appears to be a Chevrolet 153 from the ’60s. These were used in the Postal DJs until 1971 I think.