A differential allows the wheels of your car to rotate at different speeds, typically by using a set of gears. Without a functioning differential, your car would not be able to turn without forcing some of the tires to lose traction. Differentials are also frequently used to increase the safety of your vehicle in slippery road conditions. At Stu’s AE Transmission, differentials are one of our specialties, so if you have a problem with yours, we can fix it for you.