MIP 08123 C-CVD Kit Stampede and Rustler, VXL/XL-5 With a 15% larger shaft diameter for todays high demand power systems Hardened High Strength Alloy Axles, black oxide coated Thread-on Capture Ring to ensure proper placement of the cross pin With a 15% larger shaft diameter for todays high demand power systems Hardened High Strength Alloy Axles, black oxide coated Thread-on Capture Ring to ensure proper placement of the cross pin Kindly refer to 2nd and 3rd Image for assembling details