TRAXXAS Unlimited Desert Racer Front Drive Cup Upgrade Hardened Steel #45 UDR039S by GPM  [UDR039S]

Heavy duty front drive cup for TRAXXAS UDR

This GPM UDR039S front drive cup is an aftermarket replacement for the TRAXXAS Unlimited Desert Racer platform. The cups fit both front differential outputs and form the connection between drivetrain and axle ends, so accurate fit and the right material are important for consistent performance.

Produced from hardened steel #45, the part addresses wear and fatigue common to lighter factory cups. The package supplies drive cup 2pcs and stainless steel cap head screw 2.5x12 2pcs to fasten each cup, enabling a direct swap when the originals need replacing.

Installation advice: fit the cups onto the front differential outputs, check seating and alignment, tighten screws to a controlled snugness without over-torquing, and recheck for axial play after initial runs. Replacing worn cups with hardened steel versions helps sustain driveline engagement during rough off-road use.

Ideal for renewing worn front drive cups on the TRAXXAS Unlimited Desert Racer to improve drivetrain consistency and lower component wear.