The Hot Racing Axial SCX24 Brass Differential Cover with Stainless Axle Skid Plate is a heavy brass and stainless steel option that adds 13 grams of weight to the axle in a low and centralized location to lower the center of gravity, increase stability, making the SCX24 a more capable crawler. The stamped stainless Steel skid plate helps to reduce hang ups on obstacles, improving the ability to slide over terrain, while brass diff cover is thicker than the stock diff cover for increased weight and strength. Features: CNC machined solid brass billet Stamp stainless Steel skid plate Designed to reduce obstacle hang ups and improve its ability to slide over terrain Adds low hung weight to lower and centralize the vehicle's center of gravity, increase its stability, and make it an overall more capable crawler Thicker than stock diff cover for additional toughness and weight Diff cover fits either the front or rear