The 7881 X-Maxx rear differential complete assembly is a heavy-duty replacement part designed for the Traxxas X-Maxx RC truck. This rear diff assembly ensures smooth and reliable power transfer to the rear wheels, improving traction, handling, and overall performance. Built from high-quality, durable materials, it is engineered to withstand the extreme torque and stress generated by the X-Maxx during high-speed runs, jumps, and off-road bashing. The 7881 rear differential is a direct fit for Traxxas X-Maxx models, making it an ideal replacement or upgrade for maintaining optimal drivetrain performance and durability.