TRX4 Precision Rear Axle Joint Harden Steel #45 TRX45968/JT by GPM  [TRX45968/JT]

Precision hardened #45 rear axle joint for TRX4 applications

This aftermarket rear axle joint is engineered for TRAXXAS TRX4 Trail Crawler rear drivetrains and is supplied as a 2pcs set, model TRX45968/JT. It is a scale replacement component that transfers motor torque into the drivetrain while maintaining accurate alignment with the axle gears for reliable engagement.

The component is manufactured from Harden steel #45 and is processed with a nutrified and hardening treatment to increase surface wear resistance when compared with untreated steel. Dimensional control and part geometry match the original specification so it installs as a direct replacement without requiring chassis modification.

Assembly guidance: verify bearing seats and mating surfaces for wear before installation, confirm smooth rotation after assembly, and check full suspension travel for clearance to avoid binding. As a drivetrain load-bearing part, this joint contributes to power transfer quality and should be considered when tuning for consistent gear engagement and extended service life.