This is the Pro Level axle/ hub kit for the 1998-2001 Evolution V/ VI . The axles feature billet ball and cage inner CV's, larger 36 spline center bars that are made from high grade aircraft quality material and are significantly more torsional than the factory bars, an outer CV that is about 30% larger than stock with larger internals and we also include new hubs and ARP studs. Rated to 750HP with a 1-year warranty. Kit includes both axles, hubs with wheel bearings and studs.