About Labwork: Labwork is an Auto Parts One-Stop Solution brand of more than 10 years, which specializes in providing global customers with top-notched quality automotive parts & accessories . If you need any auto parts, its enough to come to Labwork. Features: Type: Brake Disc Rotor OE Number: GM 14 bolt Placement on Vehicle: Rear Fitment Type: Direct Replacement Fitment: .