On my 2008 I had to beat them off with a sleg hammer only to find it was a front that was thumping turned the fronts and replaced the rears!
Yea kinda have to after that and now lots of anti seize .
I had sprayed penitrating oil over night, tried heat first then with the oil. then a sludge after talking with a mechanic even that did not get them of till the next morning!
3 years ago for me truck only had 30,000 miles and rotors looked like new. wish I had taken fronts in to turn first but wanted them all off at once!