Traxxas 6852R Rear Steel-Spline Constant-Velocity Drive Shafts (Pair) Steel Constant Velocity Shafts offer the ultimate in torque handling and efficient power transfer The outer U-joints are lubricated and sealed by a rubber boot for maximum protection against the elements U-joint pins are held captive so you never have to worry about losing a pin Gleaming nickel-plated shafts and black silicone boots add a custom look Rear axles for 1/10 4x4 Slash, Rally, and 4x4 Stampede models