Diff outdrives for XRAY Active Diff of self-developed, world-renowned HUDY Spring metal the absolute most challenging steel item available are CNC-machined on accuracy German long-turn devices. The diff outdrives are ground and strategically lightened to cut back rotating fat. The diff outdrives are then further hardened to ensure optimum power and longest lifespan. The diff outdrive shafts are in addition precision hand-ground to a truly high threshold to be sure an ultra-smooth tight effortlessly squeeze towards diff body and diff gear. Band of 2.