What makes the DFC True Balanced Brake Drums stand out from the competition is their true fitment. This means each DFC brake drum is machined to the tightest tolerances, precision cut, and 100% mill balanced to ensure it fits exactly on your vehicle and provides a smooth operation at every stop. Brake drums that are not even in their weight distribution will cause vibrations, especially when driving at higher speeds. That is why the Dynamic Friction Company manufactures its drums using dedicated vertical turning centers and balancing machines to ensure each drum is correctly machined and electronically balanced to guarantee a true fitment and eliminate vibration. It also goes through a rigorous inspection process that measures critical attributes to ensure each drum meets OE specifications. And since it comes ready to install, it will surely save you lots of time during the installation process.