The initial automatic transmission to utilize a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was released to the 1948 model calendar year. In usual driving, the Dynaflow used only the prime equipment, relying on the torque multiplication of your torque convertor at decreased speeds. https://gearboxauto96284.canariblogs.com/a-secret-weapon-for-gearbox-auto-49004736