The primary automatic transmission to employ a torque converter (in lieu of a fluid coupling) was the Buick Dynaflow, which was released with the 1948 product 12 months. In ordinary driving, the Dynaflow applied just the major equipment, counting on the torque multiplication in the torque convertor at reduce speeds. https://cruzwzywr.blogsvila.com/34292834/gearbox-auto-can-be-fun-for-anyone