Can that third member mount hold a trans as well..
Yes. The one I actually use is an old Blue Point that's very similar to the OTC pictured. I have tooling to mount Torqueflites by the ears on the case, or they can be hung by the bellhousing. I'll hang 904s by the pan bolt holes as well. Glides I use pan bolt holes. GM 3 speeds have a different u-shaped hanger. I've had all kinds of stuff hung on it.
If the results don't match the theory, change the theory.
