Two six-speed bespoke gearboxes are employed, one for each engine. The gearbox is mated to the engine using a JCB designed stepper gearbox arrangement utilising oil-immersed multi-plate clutch packs from JCB's flagship 3CX Backhoe Loader. A torque tube encloses the gearbox and connects the final drive to the rest of the driveline.

Gear shifting in both boxes is synchronised and controlled electronically with shift actuation via steering wheel-mounted paddle switches.

Traction control will not be used, not just because it is outlawed by SCTA-BNI regulations but also because the aim all along has been to keep the car as simple as possible and the low Mu factor (coefficient of grip) of the salt will preclude very hard acceleration, which might induce wheelspin.