The 1st automatic transmission to use a torque converter (in lieu of a fluid coupling) was the Buick Dynaflow, which was released with the 1948 design yr. In usual driving, the Dynaflow applied just the top gear, relying on the torque multiplication from the torque convertor at reduce speeds. The https://gearboxauto66295.bluxeblog.com/66239049/gearbox-auto-can-be-fun-for-anyone