I have not seen one for TF's, I guess because it's so easy to pull the valve body.
You can however (Pull) and new seal in from the bootom with a home made tool, and it's easy to make one with a section of allthread, nut's and washers.
Or, it's pretty easy to use a slide hammer with a washer on it.
This way you pop the seal out with a screwdriver and then pull the seal in from the bottom.
Still have to pull the valve body though on a TF.
For some reason I still have the manual shaft seal removal tools for TH Chevy's and C series Fords in my toolbox. (Why???) :D