Traxxas 7250R 1/16 Steel Constant Velocity Center Driveshafts Steel Constant Velocity Center Driveshaft's Designed to handle the extreme horsepower and torque that Traxxas 1/16 VXL models dish out Solid-steel construction and heavy-duty drive cups offer maximum precision and efficiency O-rings retain the cross pins so you never have to worry about losing a pin Complete kit includes front and rear driveshaft's, ready to install 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 1/16 Summit, consult your user's manual for exact parts listings.