In this action packed 2 hour long video, I cover the theory of operation of the ZF 9HP 48 transaxle. You'll learn it's applications, service procedures, TSBs, Solenoid and clutch application, electronic control, powerflow, gearset layout and connections, and rebuilding particulars (things to watch out for). This video is part of an Automatic Transmissions course at SIU. Students watch these videos to compliment what they learn in lab when they overhaul these transmissions.