The initial automatic transmission to work with a torque converter (in lieu of a fluid coupling) was the Buick Dynaflow, which was launched for that 1948 model 12 months. In usual driving, the Dynaflow used just the major gear, depending on the torque multiplication with the torque convertor at decrease https://gearboxauto75307.blue-blogs.com/41076957/an-unbiased-view-of-gearbox-auto