Upgrade your ARRMA Kraton 8S with the GPM MAKX1239TS differential gear set made from 20CrInTiH steel. The kit supplies a spiral cut 39T ring gear and a 12T spiral input gear to deliver smoother torque distribution and improved transmission efficiency. These gears are hardened and blackened to resist wear under heavy acceleration and steep climbs, helping your truck maintain consistent drive response.
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