The 1st automatic transmission to utilize a torque converter (in lieu of a fluid coupling) was the Buick Dynaflow, which was introduced for your 1948 model calendar year. In normal driving, the Dynaflow utilized just the major gear, relying on the torque multiplication of the torque convertor at lessen speeds. https://gearboxauto53196.blogpayz.com/33865122/top-latest-five-gearbox-auto-urban-news