Best RC Vehicle Differentials of 2026

The INJORA Overdrive Gears are designed specifically for the Axial SCX24 series, including popular models like the C10, JLU Gladiator, Bronco, and Deadbolt. These steel upgrade gears are built to be durable and resistant to wear, giving you a reliable performance boost for your RC crawler. With four different gear types available, you can easily identify the right one thanks to the etched tooth count on each pinion gear. One of the biggest advantages is the overdrive 13T gear, which can increase your vehicle's speed by about 23%, letting you enjoy faster and more exciting runs.

The INJORA Brass Diff Covers are designed specifically for the Redcat Ascent-18 series, including brushless and scout versions. These covers are made from heavyweight brass, giving you a durable upgrade that can withstand tough conditions. They feature a corrosion-resistant coating, so you won’t have to worry about rust or wear over time. By protecting your axle gears better, these covers help keep your RC crawler running smoothly and extend the life of your vehicle’s drivetrain. Overall, these covers improve the stability and crawling performance of your Redcat Ascent-18, making your off-road adventures more reliable and enjoyable.

The INJORA Brass Diff Covers are designed to upgrade your Axial SCX24 RC crawler with durable, high-quality brass covers for both front and rear axles. These covers add extra weight to your vehicle’s axles, helping to lower the center of gravity, which improves stability during your drives. Made from solid brass through precise CNC machining, they offer strong resistance to wear and tear, ensuring long-lasting use. With two pieces included, you get a perfect fit for both axles, enhancing your RC car’s performance and durability. This upgrade is ideal for anyone looking to improve the handling and toughness of their SCX24 crawler.

The ARRMA GROM Diff is a ready-to-use upgrade that comes pre-filled with thick 3000 cSt silicone oil, ensuring smooth and quick performance improvements right out of the box. Its strong internal gears are built to last, so you can count on durability no matter the driving conditions. The 30-tooth 0.8Mod main differential gears are designed to handle heavy stress, giving you extra toughness during intense runs. Plus, it includes bearings that make installation faster and hassle-free, so you can get your vehicle back on the track without delay.

The INJORA SCX24 Underdrive Gears are designed to upgrade your Axial SCX24 series trucks, including popular models like the C10, JLU Gladiator, Bronco, and Deadbolt. These steel gears offer enhanced durability and resistance to wear, so you can rely on them for longer-lasting performance. The gear teeth count is clearly marked on each pinion gear, making it easy for you to identify and choose the right gear without confusion. Compared to the original 16-tooth gears, these new 12-tooth underdrive gears reduce the speed by about 33%, giving you better control and smoother handling during your RC adventures.

The RCAWD Oiltight Differential is designed to fix common oil leakage issues, keeping your RC car's internal parts well-lubricated for longer-lasting performance. It's compatible with many popular Arrma and Losi models, so you can easily swap out your old differential without hassle. This part lets you adjust the oil thickness to match your driving style or track conditions, giving you better control and traction. Made entirely from metal with precise CNC machining, it ensures strong, smooth gear operation and durability, even during intense driving sessions. The RCAWD Oiltight Differential offers a reliable upgrade that improves power delivery and reduces maintenance.

The ARRMA GROM Differential is a ready-to-use part designed to make your RC vehicle maintenance easier and faster. It comes pre-assembled and already greased, so you can install it without any extra preparation, saving you time and effort. The tough steel gears inside ensure that the differential can handle rough conditions and last longer, giving you reliable performance. Additionally, it includes bearings that help the differential fit smoothly onto your vehicle, making the installation process quick and hassle-free. This differential is a great choice if you want a durable and efficient upgrade for your RC car.

The Traxxas Front Differential is designed specifically for 1/10-scale 4X4 models like the Slash, Stampede, Rustler, and Rally. This complete unit comes with a pinion gear and differential plastics, making it a convenient all-in-one replacement or upgrade for your RC vehicle. Installing this differential helps improve your truck’s handling and traction by efficiently distributing power to the front wheels. With parts made to fit perfectly, you can expect smooth assembly and reliable performance on various terrains. If you want to keep your RC vehicle running smoothly and maintain control, the Traxxas Front Differential is a solid choice.

The MEUS RACING Underdrive Gears are designed specifically for Axial SCX10 II, SCX10 III, and SCX10 PRO models with AR44 and AR45 axles. Made from high-quality steel and precisely CNC machined, these gears offer enhanced durability and strength, ensuring they can withstand tough crawling conditions. The 8T-33T gear ratio provides a 9.1% underdrive, which means you'll get more climbing power and increased torque, making it easier to tackle steep or challenging terrain. Installation is simple and bolt-on, so you can upgrade your stock axle quickly without hassle. This set is a great way to boost your RC crawler’s performance and reliability.

The Traxxas Metal Gear Set is designed specifically for Latrax 1/18 scale RC vehicles like the Teton and Rally. By upgrading to metal gears, you get stronger and more durable parts that can handle tough driving conditions better than plastic ones. The kit comes with all the necessary components including output gears, spider gears, a ring gear, and a shaft, so you have everything needed for a smooth installation. Made from high-quality materials, this gear set ensures long-lasting performance, helping you get the most out of your Latrax ready-to-run vehicles. It’s a smart upgrade for anyone looking to improve reliability and durability in their RC car.