Description: 【Modification Design】: These differential gears are enhanced steel gears, with tooth counts ranging from 10T to 29T. They are thickened compared to the factory gears, significantly reducing the risk of tooth stripping for your 1/10 scale RC car 【Compatible】: Specifically designed to be compatible with popular 1/10 scale models such for , , E , and those using the 5379X gear set, ensuring a fit for your RC vehicle 【Unique Gear Ratio】: With a gear ratio different from the factory settings, these gears require both the front and rear to be replaced simultaneously to achieve the high performance for your 1/10 scale RC car 【Steel Construction】: Crafted from quality steel, these 10 T-29T differential gears are built to last, withstanding the intense forces during RC driving and providing long term reliability 【Note】: Please be aware that to outfit a complete vehicle, you need 2 differential drive gears, 2 pinion gears required per vehicle Specification: Material: Steel Gear Ratio: 10T-29T Compatible: for , , E , 5379X Size Chart: 3.72cmx3.72cmx1.13cm/1.46inchx1.46inchx0.44inch 1.46cmx1.46cmx2.5cm/0.57inchx0.57inchx0.98inch Package Includes:1 Differential Drive Gear 1 Pinion Gear, 4 Screws 1 Washer