The 1st automatic transmission to implement a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was launched to the 1948 product calendar year. In ordinary driving, the Dynaflow employed only the major equipment, depending on the torque multiplication of your torque convertor at lower speeds. https://lorenzodlnpp.bloggactivo.com/33416834/rumored-buzz-on-gearbox-auto