Serpent SER600716 2-speed set SL8 XLI 811GT
currently accepted in Cobra GT 3.0, but good optional for previous Cobra GT. The lighter 2-speed gearbox concerning the Viper 977, which need the newest variation alu center obstructs become installed.
To make use of the present day 2-speed gearbox and also the latest kind pinions towards clutchbell are needed # 903646