Yet another take on the poorly engineered Torqueflite failure item -->

On the RARE occation when a Torqueflite blows up in "Drive position/first gear", the sprag is often erroniously faulted. What happens is the sprag puts the pressure of the rollers directly against the transmission housing resulting in a spectacular explosion. I have only seen this in Drag cars with monstrous torque (built Hemi's and 440's) using 14x32" slicks. You won't have anything to worry about with the stock sprag

They are popping out of the woodwork on this