The main automatic transmission to use a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was launched for that 1948 product 12 months. In ordinary driving, the Dynaflow used only the major gear, relying on the torque multiplication of the torque convertor at reduce speeds. The https://spencernxaaz.blogstival.com/55960920/gearbox-auto-things-to-know-before-you-buy