I just got this truck (F150 2wd I6) and I need to have rotors turned (they're warped). Are the rotors and the hub one assembly or are they separate? Also assuming they're one piece, would I need to replace bearings if took them off or just have them turned and repack the bearings?

Also to those that have done this. Any tricks to getting them off - I'll be attempting it tonight.

thanks.