Replacement rear differential housing halves for Traxxas 1/10‑scale RC vehicles. This durable plastic housing provides the structural shell that holds the rear differential gears and bearings, ensuring smooth power transfer to the rear wheels. Ideal for replacing cracked or worn diff cases to restore drivetrain performance in Slash 4×4, Rustler 4×4, Stampede 4×4, Hoss 4×4, Fiesta ST Rally, XO‑1 and similar models.