Check Out This TCI 5R55S Automatic Transmission designed for power-added S197 Mustangs - 5.0 Mustang & Super Fords Magazine ...

Read on about this stock 5R55S auto transmission being replaced by an all new Lentech 4R70W overdrive unit. More details and photos of the swap only in Muscle Mustang & Fast Fords ...

The stock 5R55S transmission is fortified with a TCI StreetFighter shifter that's drag-car cool along with a one-piece aluminum driveshaft that spins 4.10:1 gears from Ford Racing.