Yeah, V6 flathead. All the WWll halftracks had 'em. ...Maybe the 3/4 tracks, on second thought... 6/8=3/4...Yeah. The 3/4 tracks.
that's one sweat overdrive unit - looks like a Merc.... old Henry made stock adaptors to fit his flat heads to just about any trannie... big Lincolns - 377 - would maybe be the exception....please correct me if I'm wrong....
The transmission......but not the bellhousing........should fit either V8 or inline 6. The 6 cylinder bellhousing to engine block bolt pattern and starter location are different than the V8. Ray