The first automatic transmission to implement a torque converter (in lieu of a fluid coupling) was the Buick Dynaflow, which was released for your 1948 model calendar year. In standard driving, the Dynaflow employed just the prime equipment, depending on the torque multiplication of your torque convertor at lower speeds. https://gearboxauto31740.blogerus.com/56297769/rumored-buzz-on-gearbox-auto