Refined and redesigned ball differential for the updated transmission measurements. The narrower design accommodates the narrow LCG gear field and all sorts of the important points had been improved to make the differential smoother to boost traction. The redesigned XB2 ball differential provides improved performance, durability, and easier upkeep. The externally adjustable ball differential is machined from HUDY Spring Steelââ? and is furthermore hardened for additional durability and a longer lifespan. A high-quality carbide thrust bearing and carbide balls are included for ultra-smooth operation. Includes outdrive adapters created for use with drive shafts with 2.5mm pin. The ball differential is recommended for several forms of dust songs as well as for bumpy Astro songs.