【Fits For】:1/10 Kraton Outcast Senton Vorteks Bigrock Granite 3s,1/8 Infraction Typhon Vendetta 3S RC Car. 【Adapted car model】:ARA4312V3,ARA102723,ARA102711,ARA102720,ARA4302V3,ARA102666,ARA4202XV3,ARA4202V3,ARA4303V3,ARA102668,ARA4203XV3,ARA4203V3,ARA4103V4,ARA4103SV4,ARA4305V4,ARA4305V3,ARA4102V4,ARA4102SV4,ARA4408V2,ARA102690,ARA4410V2,ARA102692,ARA4303V4,ARA102721,ARA4105V4,ARA4105SV4,ARA4315V3,ARA4215V3,ARA4306V4,ARA102696,ARA102722,ARA4306V3,ARA4206V3,ARA4319V3 【Upgrade to Greater Strength】: Differential Made of high-quality steel material, Hard anodic oxidation and anti-rust treatment on gear surface, long service life for these gears. 【Long-lasting Performance】: The upgrades part is durable enough,improves the overall performance of the rc car.Specially designed strengthening cut-outs for increased crash resistance. 【Upgrades part】Excellent upgrades part, better experience the fun of RC car,making your RC car more exquisite and beautiful.