Traxxas 7151X 1/16 Driveshaft E-Revo VXLProduct DescriptionDriveshaft, 1 16 E Revo (steel constant velocity) (assembled) (4) Traxxas Steel Constant Velocity Driveshaft's are designed to handle the extreme horsepower and articulation that Traxxas vehicles can dish out. The U joint pins are held captive by a heavy duty O ring so you never have to worry about losing a pin. The nickel plated steel shafts and black oxide treated accents not only look good, they are designed to exacting