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 modern variation alu center obstructs become set up.
To utilize present 2-speed gearbox plus the latest kind pinions towards clutchbell are essential # 903646