The primary automatic transmission to utilize a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was introduced to the 1948 product calendar year. In standard driving, the Dynaflow utilized just the top rated equipment, relying on the torque multiplication on the torque convertor at lessen speeds. https://juliuslmkie.bloggerswise.com/41139035/about-gearbox-auto