Diff outdrives for XRAY Active Diff of self-developed, world-renowned HUDY Spring metal the most challenging metal product available are CNC-machined on precision German long-turn machines. The diff outdrives are additionally ground and strategically lightened to lessen rotating weight. The diff outdrives are then further hardened to make certain maximum power and longest lifespan. The diff outdrive shafts are in addition precision hand-ground to a tremendously high tolerance to make sure an ultra-smooth tight easily fit in the diff human anatomy and diff gear. Group of 2.