Exploding Torqueflites

I don't know much about auto trannies, so I can only speak generally.
The guy who built the 727's for our Stock Eliminator car (and many previous for my partner), would "pin the sprag" if I remember the terminology correctly. There was never a problem. (Even after breaking a ring & pinion.) I hope this was a good fix and we weren't just lucky. But, there were hundred's of runs on many different trannies.