Things you need to know about Ford’s Performance AOD, AOD-E, and 4R70W Transmission

Few things tend to confuse us more than the AOD family of automatic overdrive transmissions controller. Interchangeability. Swapping this and that. Should you go with a mechanically modulated AOD or electronically controlled AOD-E or 4R70W? What’s the difference between an AOD-E and the 4R70W? What is a 4R75W transmission? (more…)