Hey gang, I need some advice for my '87 K5! After a high-pitched screech from under the hood, I discovered that my crankshaft was wobbling badly, causing some nasty vibration. I have removed the pulleys from the crankshaft, and have pulled the Harmonic Balance wheel. I have definitely chewed out the oil seal, but I have not yet determined whether there is another bearing to examine. If it's just a seal, I can do that easily enough. Since I don't have the timing cover off yet, my question is; where is the first bearing that I should be concerned about? Is there a separate HB wheel bearing, or should I be checking the front crankshaft bearing? Then, if there is a spun bearing that I am going to have to pull the engine for, should I just get a rebuild kit and go for the whole shot? I've got 116K on this 350, and it has run very well... only a little white puff when I start her up. So, whaddya thinks?