Help!!! Cant get my wheel off?

So the other day I bought a 1998 dodge ram 2x4. I am now trying to put front brakes on it because they are shot. Problem is I can not get the driver front wheel off the rotor due to rust. I took the lug nuts off and even knocked the studs out to make it easier to get off. I have drove the car without lug nuts and studs still no luck. Used 2 cans of pb blaster and liquid wrench and hit with a 20lb sledge hammer. Also put a chain around the wheel and tied to tree and used my come-a-long and it still wouldnt give. Basically I'm out of ideas. I work on cars all the time and have never seen on like this. Any help or advise would be greatly appreciated!