XRAY self-designed, revolutionary, super-smooth gear diff for 1/10 formula automobiles is a primary replacement the ball-differential; it truly is an overall total set which requires no other additional components without any extra changes. Utilising the gear differential makes the automobile more stable and better to drive, especially in high-traction conditions. Kit diff increases on-power steering which will be required on almost all types of songs. A must have for every racer. The entire gear differential set includes a composite example and target, precision-molded internal satellite gears produced from unique XRAY-developed composite product, all ensuring long lifespan and super-smooth efficient procedure. A super-strong hollow steel shaft guarantees maximum reliability and energy. The main advantage of kit diff is the fact that its maintenance-free. As soon as the diff is correctly built, you don't have for maintenance for many years, no reliance on regular oil modifications, no leakage as a result of an exceptional sealing system. Completely assembled gear differential is 2g heavier then ball differential.