The first automatic transmission to implement a torque converter (as opposed to a fluid coupling) was the Buick Dynaflow, which was launched for your 1948 model year. In standard driving, the Dynaflow utilised just the leading gear, depending on the torque multiplication from the torque convertor at reduced speeds. The https://gearbox-auto10851.theobloggers.com/40407988/gearbox-auto-things-to-know-before-you-buy