The first automatic transmission to use a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was released for your 1948 product year. In regular driving, the Dynaflow used just the top equipment, relying on the torque multiplication in the torque convertor at reduced speeds. The Dynaflow https://gearbox-auto08518.weblogco.com/34268704/the-best-side-of-gearbox-auto