700R4 & 4L60E: Reverse Input Drum Deep Dive

I take you on a deep dive into the reverse input drum for 700R4s and 4L60Es including a review of the different designs over the years, changes to the contents, interchange rules and go through a couple of stack ups. This video will be helpful for anyone getting into these transmissions for the first time, those having to swap drums on an early 700R4 or who is simply interested to learn more about them in general.