The main automatic transmission to make use of a torque converter (in place of a fluid coupling) was the Buick Dynaflow, which was released with the 1948 model yr. In standard driving, the Dynaflow applied just the top gear, relying on the torque multiplication from the torque convertor at reduce https://gearbox-auto18405.suomiblog.com/top-gearbox-auto-secrets-49770677