Item Type: Gear Center Slider Driveshaft Kit_x000D_Center Slider Driveshaft Material: Aluminum Alloy_x000D_Gear Material: Steel_x000D_Gear Teeth: 57T_x000D_Fitment: For ARRMA 1/10 4 X 4 Vorteks RC Car 1Durable Material: The spur gear center slider driveshaft is made of hardened metal steel, strong wear resistance, lightweight and high strength, having long service life. 2Stable Performance: Compared with other pinion gears, good machining of the spur gear can reduce roughness and noise, so that the pinion rolling smoothly. 3Ideal Replacement: The differential main gear center driveshaft is a perfect replacement for car repairing, directly replacing the old and broken accessory, ensuring the normal operation of your car. 4Easy to Install: The motor gear center driveshaft has a simple installation, convenient and time saving, don't need too much tools or complicated steps. 5Applicable Model: The spur main gear is for ARRMA 1/10 4 X 4 Vorteks RC Car. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return.