The initial automatic transmission to utilize a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was launched for that 1948 design 12 months. In standard driving, the Dynaflow utilized only the prime equipment, counting on the torque multiplication with the torque convertor at reduce speeds. https://garrettlvglr.blog-mall.com/34391898/the-5-second-trick-for-gearbox-auto