TRAXXAS X-MAXX Front/Rear Hardened Steel Joint STXM8039/1 by GPM  [STXM8039/1]

GPM technical wheel joint description for TRAXXAS X-MAXX

This single-piece aftermarket wheel joint is engineered for TRAXXAS X-MAXX platforms and specified for 8s operation. Made from hardened steel #45, the part is designed as a front or rear CVD-style joint to manage increased torque and drivetrain loading typical of high-voltage setups.

Critical dimensions include a 1.5mm CVD body wall thickness, a shaft pin that is 0.5mm larger than the OEM unit, and an outer diameter increased to 18mm from 17mm to enhance torque transfer at the wheel interface. These dimensional adjustments are targeted at mechanical robustness and torque throughput rather than electrical modifications.

Service and fitment: the component installs into the factory joint location on TRAXXAS X-MAXX using existing mounting points and hardware. During installation verify wheel hex engagement, inspect mating surfaces for burrs or wear, and confirm clearance with suspension components before testing under load.

Operational note: the hardened steel construction provides a stiffer coupling between driveshaft and wheel which improves mechanical transfer consistency under heavy throttle. Use this joint when upgrading a drivetrain to handle the demands of 8s power systems.