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Upgraded to 20CrInTiH steel material, Spiral cut ring gear, Main Diff Gear 39T Spiral, Main Input Gear 12T Spiral, 1.5Mod. The tooth design of the spiral cut ring gear allows the differential to distribute torque more accurately and efficiently according to the actual driving conditions of the wheels. Package includes : Main Diff Gear 39T Spiral-1pc ; Main Input Gear 12T Spiral-1pc. Original stock part number : ARA310911 + ARA310912. Suitable models : Arrma 1/5 KRATON 8S-ARA110002, OUTCAST 8S-ARA5810, KRATON 8S EXB-ARA5208, KRATON 8S EXB-ARA5808V2, OUTCAST 8S EXB-ARA5210,OUTCAST 8S EXB-ARA5810V2.
