Description: 【 Alloy Construction】: Crafted from alloy material, this differential gear set is ensuring long term performance and reliability 【 OEM Replacement】: Specifically engineered to seamlessly replace original factory parts, providing a and upgrade for your RC vehicle 【Compatibility for】: Diff Gear Set for 1/8 102076 4 models, while also being compatible for  1/10 MONSTER TRUCK 89076-4 and 1/10 89086-4, offering versatility across different vehicles 【Enhance Performance】: RC Car Differential gear set   to enhance its performance and make it wear resistant, upgrade for your RC car. 【Easy to Install】: RCmetal diff gear kit for installation, making it convenient to upgrade your vehicle  Size Chart: Large Gear Outer Diameter: 2.1cm/0.83inch, Inner Diameter:0.7cm/0.28inch Small Gear Outer Diameter:  1.1cm/0.43inch, Inner Diameter: 0.3cm/0.12inch Package Includes: 1 Differential Gear Set   Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. you a wonderful online shopping!