The very first automatic transmission to use a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was launched for your 1948 model calendar year. In ordinary driving, the Dynaflow made use of just the prime equipment, relying on the torque multiplication of your torque convertor https://raymondkcpan.howeweb.com/34429176/gearbox-auto-fundamentals-explained