This differential gear set is an upgraded replacement for Traxxas #2382, designed for models like Slash 2WD, Rustler, Bandit, BIGFOOT, Ford, Nitro, and Stampede. The set includes: Planet gears (4) Planet shafts (4) Sun gears (2) Sun gear alignment shaft (1) All gears and shafts are made from high-strength hardened steel, offering exceptional wear resistance and durability, perfect for high-load and high-performance applications. Weighing only 20g, this kit is easy to install and an ideal upgrade for enhancing your vehicle's drivetrain performance.