This high-quality metal main transmission gear set is designed for compatibility with several popular remote control vehicles, including Slash 4WD/2WD, VXL Rallye, Stampede VXL, and 1/10 scale Trxxas models such as E, T, Jato, and VXL. It offers a reliable solution for upgrading or replacing your existing gears to enhance durability and performance. Key Benefits: - Compatible with a wide range of models and motor configurations, ensuring versatile use. - Precision-engineered to fit 32 pitch gears with a 2.8 mm metric distance. - Suitable for engines with 5 mm or 3.175 mm shaft diameters, offering flexible compatibility through included sprockets and a coupler. Product Details: - Main gear diameter: 45 mm (1.77 inches); inner hole diameter: 11.9 mm (0.47 inches). - Pinion gear diameter: 5.0 mm, with options for 16T, 18T, 20T, and 21T sprockets included. - The package includes a 3.175 mm coupler for converting pinion openings, enabling use with engines that have a 5 mm or 3.175 mm shaft. - Four sprockets are 5 mm, facilitating versatile gear ratios. - The 54T gear replaces the original 3956 series gears and is compatible with series such as 3660, 3670, 3674, 4274, 4268, 550, 540, and 3650. Material and Durability: - Made from high-strength hardened steel for increased longevity and resistance to wear. - All-metal inner wheels provide superior strength compared to plastic alternatives, ensuring dependable operation under demanding conditions. Application Scenarios: - Upgrading the main gear system to improve durability and efficiency in high-performance RC racing. - Replacing worn or broken gears in heavily used RC vehicles to restore optimal power transfer. - Customizing gear ratios for specific track conditions or driving styles, enhancing overall vehicle handling. This gear set is a practical, durable upgrade for RC enthusiasts seeking reliable component compatibility, robust material quality, and improved performance.