Serpent SER600716 2-speed set SL8 XLI 811GT
at this time accepted in Cobra GT 3.0, but good optional for past Cobra GT. The lighter 2-speed gearbox concerning the Viper 977, which require the newest variation alu center obstructs become installed.
To make use of the modern 2-speed gearbox and also the latest type pinions about the clutchbell are needed # 903646