The 1st automatic transmission to work with a torque converter (rather than a fluid coupling) was the Buick Dynaflow, which was released for the 1948 design year. In ordinary driving, the Dynaflow utilised only the top equipment, depending on the torque multiplication from the torque convertor at reduce speeds. The https://rafaelfhheb.activosblog.com/33117301/gearbox-auto-options