My 2007 Off Road just passed the 104k mile mark and I noticed recently that the front hubs are not disengaging after going from to 4wd to 2wd. At least that's what I think it is. There is a lot more drag and at highway speeds it is quite loud. 4WD is definitely disengaging and I have tried backing up to disengage as well. Has this happened to anyone else and what do you all recommend? Thanks for the help.