A cylindrical direct drive AC induction electric motor and an adapter plate comprises an electric power conversion design for liquid fueled vehicles. For front-wheel drive vehicles, an adapter plate replaces the spindle, the motor is bolted to the adapter plate and the vehicle wheel is bolted directly to the lug studs. For rear-wheel drive vehicles, each end of the rear axle is cut off. Using the adapter plate, the motor directly attaches to the end of the “pipe.” Also, a single-piece, trailer type axle could completely replace the axle. For independent rear suspension, the adapter plate bolts in place of the wheel bearing assembly and the wheel is attached to the motor. In all of these cases, the original internal combustion engine, transmission, and all other drive components, along with the exhaust system and fuel tank, are removed to make room for batteries and components of the electric drive system.