Self-Changing Gears was a British company, set up and owned equally by Walter Gordon Wilson and John Davenport Siddeley to develop and exploit the Wilson or pre-selector gearbox.
Gears of War | Gears of War 2 | Changing Rooms | The Changing Room | Gears of War (series) | Gears of War 3 | Changing Lanes | The Changing Light at Sandover | Shifting Gears: A Bisexual Transmission | Disraeli Gears | Changing of the Guard | Changing Hearts | Changing All the Time | The Changing of Times | The Changing of the Guardian | Shifting Gears | Scorched: South Africa's Changing Climate | Changing Lives Through Literature |