Axles out of an old Ford

Theres a guy localy selling a 1974 F-350 Camper Special for cheap. Does anyone know off hand what axles would be in it? I know the F-100 and F-150 of that year had the D44 HP, but not sure what an F-350 would have.

74? closed knuckle 60?

I think the good 60s are only 78-79...