I honestly don't know why I'm posting this.

I have two transmissions in my shed/shop, and both of them have TC's installed in them, held in-place with a rubber bungee cord, for that very reason.
i've used old alternator adjustment brackets or bits of flat bar bolted to one bellhousing bolt hole so it presses against the converter, even a length of wooden batten from one side to the other with zip ties through opposing holes to do the same thing. either works. :thumbsup:
neil.