This is what I quickly started liking about mitsubishis cause they put 2 holes in the rotor so you can use 2 bolts and run them in against the hub and rotor comes right off.
OK, as for your problem, you really shouldnt have this much trouble. Occassionally, this will happen and I've had my own experience of beating the snot out of a rotor before it comes off. If I walked into your situation now, I would screw the lug nuts on (if they arent on there already, to protect the threads on the studs), get a nice and heavy 5lb hammer and beat the living ***** out of it. Trust me, it will come off.
EDIT: BTW is this the front or rear? I cannot say for certain because I've never had the rear rotors of a mustang off, but I do know the calipers are a screw type and it was always my belief that that was due to using the calipers for the e-brake. But I have down countless rear brake jobs where there was a drum assembly inside the rotor as the e-brake. Please tell me if its the rear you dont have the parking brake engaged...
OK, as for your problem, you really shouldnt have this much trouble. Occassionally, this will happen and I've had my own experience of beating the snot out of a rotor before it comes off. If I walked into your situation now, I would screw the lug nuts on (if they arent on there already, to protect the threads on the studs), get a nice and heavy 5lb hammer and beat the living ***** out of it. Trust me, it will come off.
EDIT: BTW is this the front or rear? I cannot say for certain because I've never had the rear rotors of a mustang off, but I do know the calipers are a screw type and it was always my belief that that was due to using the calipers for the e-brake. But I have down countless rear brake jobs where there was a drum assembly inside the rotor as the e-brake. Please tell me if its the rear you dont have the parking brake engaged...