The 1st automatic transmission to make use of a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was released with the 1948 product calendar year. In standard driving, the Dynaflow utilised just the major gear, relying on the torque multiplication on the torque convertor at decrease https://gearbox-auto26036.bloggosite.com/40678403/indicators-on-gearbox-auto-you-should-know