The process is easy, press the accelerator all the finest way to the ground and the gearbox will change down a gear without any need for the driver to operate manual gears. This process offers maximum engine energy automotive gears without over-revving of the engine. G.G. Automotive Gears Ltd. engages within the manufacture of traction gears and pinions. Its merchandise embrace railway gears and shafts; forged parts and machined blanks; industrial gears and gearboxes; and mining and earth-moving equipment spares.