Replace the stock pinion with the GPM TRX4010T 10T steel pinion to boost longevity on your Traxxas TRX4 Trail Crawler. Made from hardened steel #45, it provides improved strength and reduces wear under load for smoother motor rotation. Compatible with motors that have a middle hole of 3.175mm, a tooth distance of 0.8mm, and 32 pitch gearing.
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