This product is a high-quality aftermarket fit for 2008-2014 CTS front LH RH upper control arms with ball joints. It is made of durable aluminum, plastic, and steel materials and comes with a bolt-on mounting style, making it easy to install. The item includes a nut and has no cotter pin hole. This suspension, springs and related components part has a standard duty and features 100% accuracy of fit. It is easy to replace and has OE/OEM part numbers of 15219468 and 15219467. The product is not a vintage part, universal fitment, or performance part. It is compatible with the upper, left, front, and right placement on the vehicle.