HRXMX51PE Aluminum Diff Locker Spool TRA 8S 6S

This product is an aluminum differential locker spool designed to replace the internal gears in 6S and 8S Traxxas differentials, locking both output shafts together for maximum traction. CNC machined from aluminum for strength and reduced mass, it helps deliver consistent power to both wheels in low‑grip or high‑power conditions. The spool fits directly into compatible Traxxas differentials to eliminate unwanted differential action and improve traction on drag, high‑speed, or off‑road surfaces.

• CNC machined aluminum locker spool for strength
• Converts differential to solid spool for improved traction
• Designed for Traxxas 6S and 8S differential housings
• Reduces drivetrain slop compared with worn internal gears
• Lightweight for responsive drivetrain feel
• Direct drop‑in replacement for stock differential gears
• Ideal for drag, high‑power, or low‑traction conditions