The first automatic transmission to utilize a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was introduced with the 1948 design calendar year. In usual driving, the Dynaflow utilised only the leading equipment, depending on the torque multiplication from the torque convertor at decreased speeds. https://tysonxmyju.bcbloggers.com/32974807/how-gearbox-auto-can-save-you-time-stress-and-money