I'd say that you would damge the tranny running it dry. The yoke splining should be the same, although they are not the same, for your purpose any one will do. I also believe that the manual trans ones are the same splining as well. That indicate sthat I feel you should install a yoke, although it is mainly a cleanliness issue....no fluid leakage. You also want to make sure that you run a line between the 2
oil cooler fittings, but a cooler isn't needed for your purpose.