The GPM Harden Steel #45 Front or Rear Wheel Joint is specified for the Traxxas X-MAXX 6s to strengthen the driveline interface. The outer diameter has been increased from 17mm to 18mm to enhance rear power transfer, the CVD body is manufactured at a 1.5mm thickness for improved rigidity, and the shaft pin is 0.5mm thicker than the original component to resist bending and wear under high torque conditions.