So this must be just from wear & tear but my driver has the "heavy" feeling. This just happened recently it doesnt close as easily as it used to. Anyone have a solution to this problem? All my other doors will close w/ ease just by lightly pushing with a few fingers. My drivers door i have to follow through pushing all the way firmly at the end so it will close. On the other doors it feels like last 3-4 inches it just kinda closes on its own. I know its not the hinge but probably has something to do with that little black arm peice in the middle connecting the door the body. Is there ball bearings in there or something how do I get the drivers door to glide open and closed like it used to?