The very first automatic transmission to use a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was introduced for your 1948 model year. In typical driving, the Dynaflow applied just the top gear, depending on the torque multiplication of your torque convertor at lessen speeds. https://gearbox-auto42963.blog2news.com/34416329/examine-this-report-on-gearbox-auto