The Traxxas 6991 Rear Gearbox Housing and Pin is designed to provide a strong, precise enclosure for your truck’s rear gears, maintaining alignment and protecting internal components from debris and impact. Made from durable, high‑quality materials and built to Traxxas factory specifications for a perfect fit, this rear gearbox housing and pin help ensure smooth gear engagement and long‑lasting drivetrain performance. Compatible with models including the Traxxas X‑Maxx and Traxxas Maxx, it delivers reliable strength, improved durability, and consistent operation every time you hit the throttle.