Product Description
A factory‑replacement 13‑tooth hardened-steel pinion gear for the rear differential of the Traxxas X‑Maxx monster truck. Intended to be used with the matching 42‑tooth ring gear TRA7779 for proper gear ratio and fit
A factory‑replacement 13‑tooth hardened-steel pinion gear for the rear differential of the Traxxas X‑Maxx monster truck. Intended to be used with the matching 42‑tooth ring gear TRA7779 for proper gear ratio and fit
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