MIP 11110 X-Duty CVD Kit with Keyed Axels, Front, for Traxxas Stampede 4x4 VXL These X-Duty CVD's are made from High Grade Carbon Steel and Hardened to perfection With involute Moore Ideal Products Spline Technology for smoother telescoping action New KEYED AXLE features a product design enhancement to the 12mm Hex Adapter and added support products