The initial automatic transmission to work with a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was released for that 1948 design year. In regular driving, the Dynaflow made use of only the leading gear, relying on the torque multiplication on the torque convertor at decrease https://garrettlvglr.blog-mall.com/34391898/the-5-second-trick-for-gearbox-auto