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So, after all this time I think I have found the problem. I had a great mechanic friend look at it, and he lifted all fours off the ground and put it in 4WD to get the front tired spinning, and low and behold, the noise was clear as day, coming from BOTH wheel areas. He used a tethoscope (sp?) and found the noise to be coming from the wheel bearings.
I had never really considered that, because I thought bearings only made a rattle/rumble/marble noise, not a squeel. He also thought that was weird.
Now the question again, should I just be them repacked for $170 or replaced for $600? I don't want to get them repacked, then need to replace them right after, haha.
I had a high pitched squeel coming from the front wheel area. After doing some investigation on it, the vacuum hub assembly wasn't fully disengaging. Switching to manual hub locks stopped the squeek. You could modify the vacuum hub.