The function of the wheel bearing is to make sure that your GM car can spin freely and safe. There are four wheel bearings locating in your GM wheels respectively. The wheel bearing is not in tip-top shape after a long time of penetration of water and heat. When you hear some weak voice from wheel, and the voice gets worse and worse, then you have to pay attention on your wheel bearings. Or when you accelerate your GM car, but you feel the wheel and steering wheels shake badly. It is how your wheel bearings send out the sign of help. You have to comfort your wheel bearings by replacing a new one. It is not hard to finish that move though, so you can get your General Motors OEM wheel bearings here at a cheap price but a high quality. Then you can drive your car and enjoy your ride again.