I need to know what happened. I (please don't laugh) got stuck in my yard this morning backing out of my drive. I have a concrete drive and back and turn around on what normally is dirt. Well, after it sank. I went to engage the 4WD lever by pulling up. It was a bit hard and I pulled a little harder. It went POW/POP and went totally loose on me. moving up and down with no anything happening. What did I break? This is on an 89' Grand Wagoneer.