The jeep is rough (and a bit high priced for not having an engine), but it does include an overdrive. The seller doesn’t mention it, so might not know it.
“I have a 56 Willys cj5 jeep for sale. This is a project needs some work. Body is in pretty good shape. No motor. I have no title, needs to be trailered.”
https://sfbay.craigslist.org/nby/cto/d/1956-willys-cj5-jeep/6355695145.html