Listed as a CJ-3A, this looks more like an M-38.
https://www.facebook.com/marketplace/item/280398197859071/
“1951 Willy’s De-Militarized War Jeep -Minimal rust, runs & drives -OE Flathead GoDevil 4cyl, T-90 transmission & Dana transfer case + axles -Factory hardtop and doors Needs some work. Clean Title.”