I have two questions. First, when going on an incline at an angle in 2 WD, when the truck flexes, a grinding noise comes from under the hump in the front floor board. Is this a common thing, or is something about to go bad with the transfer case? I have only owned the truck for a week and am not that familiar with fords. The other problem is that neither the dome lights or the cargo light will come on when the doors are opened or when the master switch for the interior lights is engaged. The bulbs are good however, because you can turn on the lights individually. Also, the red lights that illuminate upon opening the doors don' t light up. I am thinking a fuse is bad, but can't find in the owner's manual which fuse controls the mentioned lights. Any advise would be appreciated.