The main automatic transmission to implement a torque converter (rather than a fluid coupling) was the Buick Dynaflow, which was introduced for the 1948 product year. In typical driving, the Dynaflow utilised just the prime gear, relying on the torque multiplication from the torque convertor at lower speeds. The Dynaflow https://gearbox-auto97395.blogproducer.com/41193231/gearbox-auto-things-to-know-before-you-buy