For GMC Sierra 1500 2005-2018 Disc Brake Rotor | Front | 330 mm Outside Diameter
Product Info: Part: Disc Brake Rotor Center Hole Diameter: 78.5 millimeters / 3.09 inches Discard Thickness: 28 millimeters / 1.10 inches Nominal Thickness: 30 millimeters / 1.18 inches Outside Diameter: 330 millimeters / 12.