Feature:1. Durable Material: The spur gear center slider driveshaft is made of hardened metal steel, strong wear resistance, lightweight and high strength, having long service life.2. Stable Performance: Compared with other pinion gears, good machining of the spur gear can reduce roughness and noise, so that the pinion rolling smoothly.3. Ideal 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.4. Easy to Install: The motor gear center driveshaft has a simple installation, convenient and time saving, don't need too much tools or complicated steps.5. Applicable Model: The spur main gear is for ARRMA 1 or 10 4 X 4 Vorteks RC Car. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return.Specification:Item Type: Gear Center Slider Driveshaft KitCenter Slider Driveshaft Material: Aluminum AlloyGear Material: SteelGear Teeth: 57TFitment: For ARRMA 1 or 10 4 X 4 Vorteks RC Car.Package List:2 xCenter Transmission Parts1 x Spring1 x Gear1 x Gear Slider Driveshaft