The initial automatic transmission to work with a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was released with the 1948 product year. In ordinary driving, the Dynaflow applied only the leading gear, relying on the torque multiplication from the torque convertor at lower speeds. The https://cruzwzywr.blogsvila.com/34292518/5-essential-elements-for-gearbox-auto