You dont have to replace the hub, you can take it off and with a hammer and something pointy hard enough to resist the impact. put the hub on top of two pieces of wood at the end of each side and hit it through the back of the hub where the end of the screw ends and they will come off, this is how I replaced mine with some new ones.. I did this my self cause I messed up and the thread on the screw was all gone on three screws so I changed them..