The TR-6060 replaced the T56 in 2007. While the original T56 is a great transmission, the newer models can handle more power.
In 1996, Tremec purchased Borg-Warner’s North American manual transmission division ... version of the successor the T-56, the TR-6060. TREMEC originally called the Magnum the T-56 Magnum ...
Ratings indicate 14-mpg city, 23-mpg highway Matched to the standard Tremec TR-6060 six-speed manual transmission first offered on the 2008 Dodge Viper SRT10, shifts are smooth and easily controlled.