The very first automatic transmission to use a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was released to the 1948 model calendar year. In standard driving, the Dynaflow applied only the top equipment, relying on the torque multiplication of your torque convertor at decrease speeds. https://gregoryxgjih.blogpostie.com/55617900/5-essential-elements-for-gearbox-auto