• Complete X1 ball differential set • Direct replacement gear differential • Improves traction in low hold conditions • Enhances stability • more straightforward to drive • Fits X1 Complete ball differential set the X1 is direct replacement the device differential without any other extra elements required with no extra improvements. Utilising the ball differential makes the car more stable plus much more an easy task to drive, particularly in suprisingly low hold conditions like asphalt or low hold carpeting. The ball diff increases on-power steering which is required on all kinds of songs.