The first automatic transmission to implement a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was launched to the 1948 product 12 months. In usual driving, the Dynaflow applied just the prime gear, depending on the torque multiplication of your torque convertor at lower speeds. The https://gearbox-auto48259.ampblogs.com/facts-about-gearbox-auto-revealed-70494535