The primary automatic transmission to use a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was released to the 1948 design year. In normal driving, the Dynaflow applied only the top equipment, counting on the torque multiplication in the torque convertor at decrease speeds. The Dynaflow https://gearboxauto98531.life3dblog.com/32754729/a-review-of-gearbox-auto