Floating Gears vs Double Clutching If you're a professional truck driver, a racing enthusiast, or even just a Vin Diesel fan, you've probably heard the terms "floating gears," "double clutching," or even "granny shifting" used to refer to the various ways a driver with an asynchronous manual transmission can control their clutch and shift gears effectively. While most CDL training courses and schools have a strong preference for the safest method, there's a massive community of truckers …