need help ID'ing tci transmission

I zoomed in on the first picture you posted and it appears there is a kickdown valve sticking out to touch the cammed surface of the kickdown shaft. So, you would need a factory kickdown linkage or a Lokar cable set-up. I also noticed that it looks like a transbrake wire connector in the same picture from the back of the case. Evidently at one time someone used or was going to install a transbrake.