XRAY now offers lightweight CNC-machined diff outdrive adapters for the XB808 Active Diff™. Made from world-renowned HUDY Spring Steel™ - the toughest steel material available - the outdrives have been strategically machined to be lighter than the standard #355161 Active Diff™ outdrive adapters. For serious racers who are conscious of weight savings. CNC-machined on precision German long-turn machines. Additionally ground and strategically lightened to reduce rotating weight, then further hardened to ensure maximum strength and extra-long lifespan. Final precision hand-grinding ensures a very high tolerance to ensure an ultra-smooth tight fit in the diff body and diff gear. Xray