Check out this 727 blowup

riding shotgun when 440 BB Dodge truck at 12psi WOT blew up last night at the top of third gear. Not a stutter or hickup until it let go with BANG!! followed by a comet tail of sparks, and clang-a-langing. The explosion rocked the truck, flattened the rear right tire, and hit the passenger floor pan so hard it knocked my feet in the air. It was so violent we were counting toes when it came to a stop.

We found the splined end of the driveshaft and one of the yokes, but the rest is MIA, other than a couple pieces of bell housing. It looks like the driveshaft broke AFTER the explosion. The white paint on the splines is what it scraped off the dotted line on the road.

As you can see, the bell housing is completely gone, and the trans is sittin 90 degrees from normal. The SFI converter and flexplate survived. Since much of the case is intact, I don't think this was the dreaded overrunning clutch explosion?

Opinions theories and chastizing welcome......