The GPM TXMM1137S differential set upgrades the Traxxas Mini Maxx Monster Truck with robust 4140 carbon steel and 7075 alloy components in both front and rear units. The 13T/37T gear ratio and 1.0mm module deliver stronger tooth contact and reduced drivetrain inefficiency, helping the vehicle cope with higher loads. Differential oil is not included with the package, so add the correct type to tune gear engagement and wear protection.
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