Gear differential internal gears accuracy created from new graphite composite mixture. Includes 2 bevel gears + 4 satellite gears. Molded from an all-new unique lightweight and extra-strong graphite material which provides the gears an optimal balance of hardness, toughness, and flexibility to provide long life, minimal wear, and minimizing breakage or teeth stripping. The lighter, graphite gears result in increased drivetrain efficiency. A must have for professional racers. Fits XB4, NT1 & T3 vehicles.
