I'm replacing the front brakes on a 2001 V70. Got the calipers, brackets, pads and small 6mm bolt out. There is nothing else obviously holding the rotor on except rust (!), and that's currently soaking in PB Blaster. Before I go back (after finishing this beer) to tap on it again with the copper hammer, I thought I'd check and see if there's anything unobvious I need to remove first... TIA...