The set includes a 33T differential bevel gear and a 12T pinion gear forged in 40CR steel, intended as an RC drivetrain spare for TRAXXAS TRX4-series crawlers and compatible TRX6 machines. These gears sit inside the front or rear gearbox to transfer drive torque through the differential.
Swap this pair when plastic or worn alloy gears start to slip or chatter. 40CR steel balances hardness and toughness for typical crawling forces; during installation inspect gear engagement and bearing condition to prevent accelerated wear.
Fitting hints: open the gearbox, keep the original shims and bearings in place, fit gears in the same orientation, and set proper backlash and free rotation before closing up the case. This item is intended for model use only.
8279?8279R
A direct-fit steel bevel and pinion set for TRAXXAS TRX4 and TRX6 platforms, suited to gearbox replacement and fine tuning to recover smooth driveline behaviour in scale crawlers.
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