During the power stroke, you need to maximize the pressure in the engine cylinder in order to get the most power and torque from your internal combustion engine. For this reason, your GMC car has been equipped with an ignition system that ensures the right timing of igniting the fuel. The GMC distributor rotor is one of the many parts comprising your ignition system that provides excellent support in your car's proper engine operation. You can usually see this vehicle component mounted at the upper end of the distributor shaft. In conjunction with the distributor cap, your GMC distributor rotor helps in harnessing the needed voltage in your internal combustion engine. It works by distributing high tension current over the ignition connectors and cables found on the distributor cap. In order for the voltage to travel, your GMC distributor rotor has been designed with a center tab. Not only that, it is also equipped with a metal component that allows it to link itself to the cables to keep it in its proper place. Due to the excessive pressure and friction generated from the ignition process, the firing end of your GMC distributor rotor may eventually wear out. A worn out GMC distributor rotor would affect the operation of your ignition system because it could resist the high tension spark. When this happens, you need to immediately find for a replacement part in order to prevent further car problems. You can purchase one at Car-Stuff, you reliable online dealer of genuine car parts and accessories. You can place your orders online or by phone-right at the comforts of your own home or office. Online shopping has never been this easy! So what are you waiting for? Order a premium quality GMC distributor rotor from us, and be among our growing numbers of satisfied customers!