Refined and redesigned ball differential for the updated transmission dimensions. The narrower design accommodates the narrow LCG gear box and all the details were improved to make the differential smoother to increase traction. The redesigned XB2 ball differential offers improved performance, durability, and easier maintenance. The externally adjustable ball differential is machined from HUDY Spring Steelââ? and is additionally hardened for extra durability and a longer lifespan. A high-quality carbide thrust bearing and carbide balls are included for ultra-smooth operation. Includes outdrive adapters designed for use with drive shafts with 2.5mm pin. The ball differential is suggested for all types of dirt tracks and for bumpy Astro tracks.