The ARRMA GRANITE GROM MEGA Rear Differential Gear Set by GPM MGG1230RS is engineered for tougher running and longer life. With 4140 carbon alloy steel gears and 7075-T6 alloy components, the set resists wear from heavy loads. Its spiral cut ring gear smooths torque flow, and the treated 30T large bevel and 12T small bevel gears offer improved surface hardness for durable operation. Differential oil is excluded; select oil type based on your track surface and driving preference.
ARA311193+ARA311182
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