It'll just slide off, but might require some force.

 

I had to hit mine with the back side of a splitting maul. Took a few hits, but they popped off. I hit them from the front..doesn't matter which side you hit them from...they pop off. Use some never seize on the hubs of new ones.

 

After spending eight hours banging and heating up my rotors in an attempt to remove them, I realized it was a one piece unit. Advance auto never asked me 2wd vs 4 we. Counter guy sold me 4wd. Had to take them back to get correct ones for my 2wd truck. I went ahead and replaced wheel bearings and spindle nut/washer while I had it apart.

2007 f250 xlt 2wd 6.0

 

2005 2wd hubs
Think mine are same how do you get them off does the gres come off it looks welded

 

Check and make sure there is not a screw holding the rotor to the hub. On some vehicles, there is a screw that will hold the rotor to the hub and is located on the face of the rotor, usually between the stud holes.