The initial automatic transmission to use a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was launched to the 1948 model yr. In usual driving, the Dynaflow made use of only the top gear, counting on the torque multiplication with the torque convertor at decreased https://gearbox-auto08417.blogolenta.com/31100495/detailed-notes-on-gearbox-auto