The 1st automatic transmission to work with a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was introduced for that 1948 design 12 months. In regular driving, the Dynaflow applied only the top equipment, relying on the torque multiplication in the torque convertor at decrease https://gearbox-auto87306.answerblogs.com/34005930/the-basic-principles-of-gearbox-auto