The main automatic transmission to use a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was introduced to the 1948 model year. In normal driving, the Dynaflow utilised just the major gear, depending on the torque multiplication in the torque convertor at decreased speeds. The https://elliotlqtts.blog5.net/78221558/details-fiction-and-gearbox-auto