This gear set replaces the internal differential bevel and its matching pinion used in TRX4-based trail crawlers. The kit includes a 34T bevel differential gear and an 11T pinion gear made from 40CR steel, intended for RC-scale drivetrain use only.
The assembly fits inside the inner section of the front or rear gearbox where the bevel set transfers torque from the motor output to the wheel axles. These aftermarket parts are aimed at restoring correct gear mesh and consistent power delivery for crawler setups.
Installation notes: check the gear mesh and backlash against your current spur and pinion before final assembly, clear the gearbox of any debris, and apply an appropriate RC gear grease to the mating teeth. Following these steps helps limit premature wear and maintain smooth low-speed crawling control.
8279?8279R
Use this 40CR bevel and pinion set when replacing worn internal diff gears in TRX4 or TRX-6 gearboxes to regain reliable low-speed drivetrain engagement.
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