Serpent 600716 - SL8 XLI 811GT 2-Speed Gearbox Kit Precision Aluminium Unit  [SER600716]

Upgrade Cobra GT driveline with Serpent 600716 2-speed

The Serpent 600716 2-Speed Gearbox Kit enhances the drivability of Cobra GT cars and brings finer control to racing setups. Initially introduced on the Cobra GT 3.0, this gearbox can be retrofitted to earlier Cobra GT models when fitted with the required components.

Optimised aluminium construction

The SL8 XLI 811GT gearbox uses lightweight aluminium construction to reduce mass while keeping rigidity in key areas. The approach follows lessons from the Viper 977 to maintain accuracy and long term track durability while improving acceleration feel.

Required modifications and part list

Installation of the SL8 XLI 811GT calls for new aluminum center blocks to secure the unit in the chassis. You will also need to fit clutchbell pinions #903646 so the 2-speed mechanism functions correctly across both ratios.

For Cobra GT drivers seeking a reliable two speed conversion, the Serpent 600716 2-Speed Gearbox Kit offers a lightweight, well engineered option to improve on-track acceleration and top speed control.