The main automatic transmission to make use of a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was introduced for the 1948 product yr. In typical driving, the Dynaflow employed just the prime gear, depending on the torque multiplication with the torque convertor at decrease speeds. https://gearbox-auto52075.myparisblog.com/34343889/examine-this-report-on-gearbox-auto