The main automatic transmission to employ a torque converter (as an alternative to a fluid coupling) was the Buick Dynaflow, which was launched for your 1948 product calendar year. In ordinary driving, the Dynaflow used just the top rated gear, depending on the torque multiplication on the torque convertor at https://gearbox-auto49247.blogthisbiz.com/40593333/the-basic-principles-of-gearbox-auto