Holy vibrations Batman! Not sure of anyone can help with this, but here it goes. A week ago, we pulled up to a stop. After we got going. There was a very prominent vibration and squealing that began when moving forward/backwards? We got out and had the other listen for the noise on a dirt road. The noise is coming from the center of the Jeep (transmission/Transfer case) area. I removed the front driveline and the vibration and noise were still present. By the time I drove to Les Schwab to have them take a look. The major vibration and noise had went away. There was still a vibration present. Also determined that the tires needed rebalancing from the last 10k of driving. We attributed the noise to maybe something had gotten stuck somewhere, as we had been wheeling at Naches the past Sunday. After completing, we set out for the weekend, but still had a small vibration. Well, the major vibration and noise returned yesterday on our return trip to Tonga Ridge. Vibrating the crap out of us from a dead stop all the way through. I have check the drivelines (upgraded Northwest Drivelines, yokes, etc), u-joints, transmission and motor mounts and everything seems tight. Any ideas? Maybe I am missing something. I am planning on taking our rig down to a repair shop today, but I was trying to see if I could make the repairs at home if I can figure out the cause? My fear is the transfer case has a bearing that took a crap or even a bent axle/wheel bearing? Any help would be appreciated. Thanks in advance.