How do I get my rear rotors off my 07 F150?

I have the tire off and the caliper is tied to the leaf spring, but the rotor won't move. I've sprayed it, slammed it with a hammer, and even used a slide hammer. Am I missing something? The rear wheel moves so I know the inner e-brake isn't stuck, but do I need to remove the 4 large bolts on the rear end where it meets the wheel? I've done plenty of rotors and never had a problem! I've done Dodge, Ford, and Chevy brakes.