Complete Rear Axle Assembly, precision machined, anodized black. Comes with 5.5″ Birdcage spread. (1) Splined Axle, (2) 5.5″ Birdcages, (1) Brake Carrier, (3) Bearing Inserts, (2) Sprocket/Rotor Hubs, (1) Brake Rotor, Complete Spacer Kit, (2) Axle Nuts, Hardware included. (Does not include Rear Wheel Centers)