Diff outdrives for XRAY Active Diff of self-developed, world-renowned HUDY Spring metal the most challenging steel product available are CNC-machined on precision German long-turn devices. The diff outdrives are ground and strategically lightened to lessen rotating fat. The diff outdrives are then further hardened to make certain maximum strength and longest lifespan. The diff outdrive shafts are additionally precision hand-ground to an extremely high threshold to make certain an ultra-smooth tight easily squeeze into the diff body and diff gear. Group of 2.