The Peterbilt 567 Set-Back Axle and 579 Long Hood Cab Skirts are a practical and beneficial addition to your truck. Made from stainless steel, these cab skirts are designed for underbody exhaust models and measure 2.75 inches wide. They are sold in pairs and come with all the necessary hardware for easy installation. These cab skirts easily mount to the underside of the cab, although some drilling may be required. They fit most Peterbilt 567 and 579 makes and models, providing a sleek and functional upgrade to your truck's appearance.