Tranny explosion

So I’m pretty new and go into the box with my auto shift 727 sitting in 2nd and think I’m ok because I’m in manual 2nd. No, the car is in first. There are just too many variables to make blanket statements about how to run a 727. have!

Manual low on a auto shift valve body applies the rear band. 2nd or D does not.

A billet drum is good advice regardless what else has been done.