its a seperate unit from your rotor. Once you get the wheel off, take your brkae caliper off the remove the roter, You will have to remove that axle nut from the axle and you lightly tap the axle back. and if you look on the back side of the knuckle there are four bolts that hold the hub to the knuckle. Just reove those 4 bolts and lightly tap the axle out, you will have to do some prying to get the hub out but it will come.
joe
