The primary automatic transmission to utilize a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was launched to the 1948 product calendar year. In usual driving, the Dynaflow utilized only the leading equipment, counting on the torque multiplication from the torque convertor at lower speeds. https://gearboxauto86318.blogdun.com/34444139/gearbox-auto-secrets