The AOD (for automatic overdrive) is a four-speed automatic transmission with overdrive. Introduced in 1980, it was Ford's first four-speed automatic overdrive transmission. The gearset design is based on the Ford "X" automatic transmissions used during the 1950s, 60s, and 70s. The AOD replaced many of Ford's older transmissions such as the C4, C5, and light duty applications of the FMX.
It was not long ago that if you made big horsepower, it was out of the question to expect an overdrive transmission that would hold up.
That is no longer the case, as AODs with hardened one-piece input shafts and other features, like the OD Delete valve body, allow us to build an AOD to safely handle 1500 HP.
It is not uncommon for over the top, 1000+ HP cars to enjoy the benefits of OD to make street driving a joy- even on the highway- drive it to the track, maybe change the rear tires, and then blast down the 1/4 mile with no concerns of breakage- with or without optional trans-brake.
This is today's AOD, and DYNAMIC Racing Transmissions is proud to offer this transmission at the appropriate level for almost everyone.