Traxxas 9051R Driveshafts EHD Front CV Steel Complete (2)Driveshafts, front, extreme heavy duty, steel spline constant velocity with 6mm stub axles (complete assembly) (2) (for use with 9080 upgrade kit) Extreme heavy duty front steel CV (constant velocity) driveshafts feature larger 6 mm stub axles to work specifically with the Extreme Heavy Duty Upgrade Kit. Designed for intense high power applications, these shafts are built to withstand the brutal torque from the 540XL motor and the massive grip of huge