Description: 【Differential Gear】: This differential gear includes helical gear pairs with 10T to 29T ratios, providing a complete transmission for your 1/10 4X4 RC vehicle with part number TRZ035 【Performance Gear Ratio Optimization】: The specifically engineered 10T-29T gear ratio delivers enhanced acceleration and speed performance, making your RC car more responsive and powerful during competitive and bashing sessions 【Precision Helical Gear Design】: Featuring precisely cut helical gears that provide smoother meshing and quieter operation compared to standard gears, ensuring efficient power transfer and reduced gear wear over time 【Sturdy Steel Construction】: Manufactured from quality 45 gauge steel materials, these differential gears offer sturdy durability that withstands the high torque demands of 4WD RC vehicles during aggressive driving conditions 【Ideal For RC Enthusiasts】: This gear is great for 4X4 owners who want to upgrade their vehicle's transmission performance for faster acceleration and more competitive track performance Specification: Material: 45 Gauge Steel Gear Ratio: 10T-29T Size Chart: 3.72cmx3.72cmx1.13cm/1.46inchx1.46inchx0.44inch 1.46cmx2.5cm/0.57inchx0.98inch Package Includes: 1 Differential Gear with Screw 1 Pinion Gear Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.