XRAY self-designed, revolutionary, super-smooth gear diff for 1/12 pan cars is a rapid option to the ball-differential; its a whole set which demands no other extra elements without any extra alterations. Utilizing the gear differential makes the automobile more stable and safer to use a car, especially in high-traction conditions. The product diff increases on-power steering which can be needed on many tracks. A must have for every and each racer. The complete gear differential set includes a composite situation and target, precision-molded inside satellite gears created from unique XRAY-developed composite product, all ensuring long lifespan and super-smooth efficient procedure. A super-strong hollow steel shaft guarantees maximum dependability and power. The main advantage of kit diff often its maintenance-free. Whenever diff is correctly built, there is not for maintenance for quite some time, no reliance on regular oil customizations, without any leakage considering an exceptional sealing system.