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That's in phase. I am not sure what years were involved but there was a TSB to replace the two piece style with a one piece. This was to eliminate a low speed vibration or shudder on acceleration. It was for 2wd models only if I remember correctly.

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Hmmmmm.....interesting. Wouldn't that make for one l-o-n-g driveshaft though?

Didn't find anything obviously wrong, so, I greased everything up and put it back in, and now the vibration is worse. Put everything back the way it was, didn't forget to tighten anything, the only difference is the fresh grease in the U-joints. At 35MPH, it now vibrates hard enough that the sun visors drop down a little.

Ran out of light tonite. Going to check things again tomorrow.