Driveshafts Jato (steel constant-velocity) (assembled with inner and outer dust boots) (1 pair)For the hardcore racer, Jato has available these trick metal driveshafts. They concentrate the mass for less overall rotational mass than the stock Jato driveshafts. This results in even quicker acceleration. The outside U joint is lubricated and sealed by a rubber boot to protect it from dirt and grime. The U joint pins are held captive by the ball bearings so you never have to worry about losing a pin. Computer aided design permitted Traxxas