The Peterbilt Axle Differential Switch Guard Cover is a practical and durable addition to your truck. Made of chrome plated stainless steel, it features an axle differential engraving and fits most Peterbilt 370 Series Trucks from 2001 through 2007, as well as most Peterbilt 365, 367, 384, 386, 388 and 389 Series Trucks from 2006 and newer. Sold individually, this guard cover provides protection for your axle differential switch while adding a sleek and stylish touch to your truck. Upgrade your truck's functionality and appearance with the Peterbilt Axle Differential Switch Guard Cover.