XB4 gear differential was totally redesigned both in-front and back and features unique split design of the crown gear. The differential has greater interior oil amount to boost persistence associated with the diff action, yet at precisely the same time it's considerably narrower to match to the narrower bulkhead to go the rotating fat nearer to the centerline. The maintenance-free super-smooth gear diff includes a composite case and cover with interior satellite gears that are precision-molded from unique XRAY-developed graphite composite product, ensuring an extended lifespan and super-smooth, efficient procedure. Gear differential features redesigned diff-outdrives made for use with 2.5mm pin.
