The primary automatic transmission to implement a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was released for your 1948 product calendar year. In regular driving, the Dynaflow utilised just the major gear, counting on the torque multiplication of the torque convertor at lower speeds. https://sergioinnnl.blog-a-story.com/14934928/gearbox-auto-can-be-fun-for-anyone