The main automatic transmission to work with a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was released for your 1948 product year. In normal driving, the Dynaflow applied only the prime equipment, relying on the torque multiplication with the torque convertor at lessen speeds. https://remingtonbnuxa.look4blog.com/72405961/new-step-by-step-map-for-gearbox-auto