The main automatic transmission to make use of a torque converter (in lieu of a fluid coupling) was the Buick Dynaflow, which was introduced to the 1948 model yr. In ordinary driving, the Dynaflow employed only the top rated gear, depending on the torque multiplication on the torque convertor at https://gearboxauto31852.bloggin-ads.com/57356090/not-known-facts-about-gearbox-auto