The Traxxas 6842R Spur Gear is a genuine OEM 50‑tooth spur gear with a 0.8 metric pitch (compatible with 32‑pitch pinions) designed for use in the center differential of select Traxxas 4×4 RC trucks. As a key drivetrain component, this plastic spur gear meshes with the pinion to transfer motor power through the center diff, helping your vehicle deliver balanced acceleration and drivetrain performance.