TRAXXAS UDR Differential Ring Gear Upgrade Hardened Steel #45 UDR1200S/G1 by GPM  [UDR1200S/G1]

Ring gear replacement for UDR drivetrain

The UDR1200S/G1 ring gear from GPM is an RC-scale replacement intended for the TRAXXAS UNLIMITED DESERT RACER driveline. It installs in the front or rear gearbox to transfer torque between the bevel pinions and the differential assembly.

Built from hardened steel #45, the part improves wear resistance compared with ordinary steel gears. The harder material and tighter production tolerances are intended to reduce backlash and help the gearset maintain a steadier mesh when under load.

Choose this part for a direct replacement or when refining drivetrain robustness and feel. Check tooth count and fitment before installation, then set gear mesh and differential play after assembly to prevent early wear.

A practical scale replacement to improve engagement and longevity in the TRAXXAS UDR front or rear gearbox; ensure correct mesh and fit during installation for best results.