The primary automatic transmission to work with a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was released for the 1948 product year. In usual driving, the Dynaflow utilized only the leading equipment, relying on the torque multiplication of your torque convertor at decreased speeds. https://gearbox-auto96394.dm-blog.com/34164722/facts-about-gearbox-auto-revealed