Traxxas 5154 Steel Constant Velocity Driveshaft Steel CVD driveshaft for Revo / Maxx Shaft only, 128.5mm Includes drive cup pin (1) Use Traxxas stock and hop-up replacement parts to get the most out of you Traxxas RTR vehicles This product is made from high quality materials and designed for lasting performance This is for use on RC vehicles such as the Traxxas Revo with CVD kit; consult your user's manual for exact parts listings