XB4 gear differential ended up being totally redesigned both ahead and straight back and features unique split design of top gear. The differential has greater internal oil volume to enhance persistence concerning the diff action, yet simultaneously it really is dramatically narrower to suit towards the narrower bulkhead to get the rotating fat closer to the centerline. The maintenance-free super-smooth gear diff includes a composite example and cover with interior satellite gears being precision-molded from unique XRAY-developed graphite composite material, ensuring a lengthy lifespan and super-smooth, efficient operation. Gear differential features redesigned diff-outdrives designed for use with 2.5mm pin.