So I've gotten a very disturbing noise coming from the starter/flywheel area on my 4.0 XJ. I've done some searching and it seems like the two options are bad solenoid or a cracked flywheel. Wondering if you guys could give it a listen and tell me what you think. http://s1229.photobucket.com/albums/ee480/Gstang117/?action=view¤t=VID_20130106_164650.mp4

The starter was replaced a year ago. The noise started a couple days ago and got progressively worse.