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

Aftermarket front drive cup for TRAXXAS UDR

The GPM UDR039S front drive cup is supplied as a replacement part for the TRAXXAS Unlimited Desert Racer. These cups sit on both front sides of the differential and connect the drivetrain to the axle outputs, so correct fitment and material choice are key to prolonged service life and steady driveline action.

Made from hardened steel #45, the cups resist wear and cyclic fatigue that can affect softer stock parts. The set includes drive cup 2pcs and stainless steel cap head screw 2.5x12 2pcs to secure each cup, intended to provide a straight swap when factory cups become worn.

Fitting notes: mount the cups to the front differential outputs, check seating and alignment, tighten the screws to a sensible snug torque without overdoing it, and inspect for play after a short run. Upgrading to hardened steel cups helps keep consistent engagement under high load and rough-surface conditions.

Recommended for replacing worn front drive cups on the TRAXXAS Unlimited Desert Racer to restore drivetrain reliability and reduce wear in normal hobby use.