Old FoMoCo transmission tool

I've had this tool since the 80's but I've never found the exact application for it. I did find out it was some kind of transmission adjustment tool but never found how it's used.

 

These are the 2 for adjusting the Ford-O-Matic bands. Not sure what yours is.

 

Yes, that's why I'm trying to find out.

 

Not sure , but I do know it requires to be backed of 1 1/2 turn . Must be from a German built Ford . Gootandtight , tighten until it snaps off the back off 1 1/2 turns .