well all you got apart by the sounds of it was the hub assembly,then you have to take your 1 or 2 depending bearing nuts off,remove your outter bearing and pull your hub assembly,then drive your wheel studs out and replace your rotor,I would suggest that you replace your wheel studs at the same time,they are sometimes salvagable,but its NEVER a good idea to reuse them,specially considering they are only about a dollar each.