Heavy Duty Bevel Gear Set (38/13) From AxialThe heavy duty gear set offers you improved gear mesh reducing slop in the drive train. In addition it helps add weight low down which helps keep the center of gravity low and on the rocks where you want it. Made from high grade steel and hardened for increased strength.Features:Improved gear mesh reduces drive train slopHardened steel for increased strength and additional weight in the axleOne set per axle required