HRTRF125X - Steel Differential Spool Locker Tra 4x4

Steel differential spool locker designed to replace the rear differential assembly in 1/10 scale 4x4 short course trucks. Engineered to lock the differential gears together so both rear wheels turn at the same speed for maximum traction. Constructed from hardened steel to withstand high torque loads and aggressive driving conditions. Precision machining ensures concentric rotation and smooth engagement. Fits directly into the factory differential housing with no major modifications. Ideal for racing and off-road use where predictable rear traction is needed.

• Hardened steel construction for high torque durability and impact resistance

• Precision machining for concentric spool performance and minimal drivetrain vibration

• Converts rear differential to solid spool for equal wheel drive output

• Direct-fit design compatible with 1/10 scale 4x4 short course platforms

• Helps improve traction out of corners and under acceleration on loose surfaces

• Maintains proper spline engagement for durability under load

• Designed to work with factory differential hardware without modification