This GPM TXMS123AHEX2 kit is presented as a precision upgrade for the Traxxas MAXX Monster Truck drivetrain. It combines hardened steel articulations with 6061 T6 alloy shaft bodies and is engineered to improve torque transfer and resilience under load. The CVD swing joint replaces conventional cross-head fittings to reduce driveline lash and improve mechanical efficiency. The axle diameter increase to 8mm enhances bending resistance while retaining a compact mass profile.