The product is a set of two ACDelco 177-391 brake drums designed for Chevrolet C/K Suburban vans. These rear brake drums are made of durable cast iron and feature a bolt pattern of 8 x 6.5. They have OE/OEM part numbers of 15633399 and 18006042 and are suitable for Chevrolet vehicles. The drums are uncoated and manufactured in China. They come with a California Prop 65 Warning for Cancer and Reproductive Harm. The ACDelco brand ensures quality and reliability for your vehicle's braking system. Exact item is shown. This is a new old stock item with its original packaging, which will be included but may be broken down prior to shipment. It has light surface rust from storage. For Chevrolet Suburban, P30, C/K pickups, G10 and G30 vans, and more. Made in China. No returns if installed. Please review our business policies in our store for information regarding returns, shipping and warranties.