The primary automatic transmission to utilize a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was launched to the 1948 model calendar year. In standard driving, the Dynaflow utilised just the top equipment, relying on the torque multiplication of your torque convertor at lessen speeds. https://gearbox-auto04691.digitollblog.com/33605463/the-basic-principles-of-gearbox-auto