Checking Sprag

Billet front drum in a 727 is a “must” in my book.... gear breakage is a crap shoot. I broke 2 sets of gears (8.75) in my Mirada in the dark ages before I knew such possible mayhem existed.... threw a new pig in and raced. Wasn’t until a friend broke a gear on launch (8.75) locked the sprag, front drum came through the floor. Chuck Lofgren was at the track that day and came over to take a look and schooled us on this phenomenon.... been billet drums and shields/blankets since the early 90’s. Years later my cousin broke a gear at launch (8.75.... interesting pattern here) cocked the sprag so hard it broke the trans case... billet drum stayed in tact.