The primary automatic transmission to utilize a torque converter (rather than a fluid coupling) was the Buick Dynaflow, which was introduced for your 1948 product yr. In typical driving, the Dynaflow utilised just the major gear, depending on the torque multiplication of the torque convertor at reduce speeds. The Dynaflow https://gearboxauto74283.blogdon.net/details-fiction-and-gearbox-auto-50205945