Aluminum Center Diff Case Set (1 Diff)This high quality Center Diff Case Set is manufactured from specially selected materials to ensure maximum performance in all conditions. Includes 1 x Center Diff Gear 53T Mod 1 1 x Center Diff Case Features Precision manufactured parts for smooth and consistent operation Center diff case constructed from high quality aluminum for light weight and optimum heat dissipation Center diff gear constructed from steel for strength and durability Red anodized