This aftermarket rear differential pinion fits the TRAXXAS UNLIMITED DESERT RACER UDR platform and is listed as model UDR1200S/G2. It replaces the original pinion inside the rear gearbox to refresh drivetrain performance.
Construction and benefits: made from hardened steel #45 to improve abrasion resistance versus typical stock items, the tighter tooth engagement helps cut backlash so gear contact stays smoother under off-road loads.
Package contents: one pinion gear plus four stainless steel flat head screws 2.5x8 are included to match the rear gearbox mounting points.
Installation tips: fit the part into the rear gearbox as the differential pinion, use the supplied screws, confirm correct mesh manually prior to running and make small mesh adjustments if required.
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