well, I FINALLY HAD TO adress this situation. the vibratoin even at low speed have gotten bad enough to force me into action. I have the front end torn apart. and what I am seeing makes me really scratch my head wondering what the heck is going on. the intermediate shaft has something similar to rust stains where the bearing (which is actually a plastic bushing) would be. the shaft has a small amount of gear lube all over it, which makes me wonder if that was done at the factory to prevent rust and or lubrication for the splines, or if this area is supposed to be dry, then i may have leaking seals in the differential? I have read here that the plastic bushing is normal for my year. in which case makes me wonder if that bushing is THE bad part, and the axles are salvageable. I can not find a measurement of the "bearing" part of the intermediate shaft. and i would really like to measure it. the splines seemed pretty tight, I had to drive the 2 shafts (cv shaft & intermediate) apart with a Big Lead Hammer with my buddies help (me pulling on the cv shaft with the intermediate shaft clamped in a vice). I saw on a different post that he had an o ring on one of the shafts, but I did not find any O-rings. is there supposed to be one? and if so, where should it be? I have hundreds of O-rings, if there is supposed to be one, i will likely have one in my o-ring box. the seal looked to be doing its job, as there wasn't any dirt on anything inside. but I will replace it along with swapping the bushing for a bearing. my plan is to replace the bearing and seal, then slide the axles back in and see how much play there is between the shafts and bearing. if there is only a few thousandths, I am going to run it. but if there is still an appreciable amount of play, then I will have to order shafts.