It was the Driveshaft. My friend had an extra that he was going to return for the core charge so we swapped. His was fine; he just wanted a great basin HD shaft. The vibration disappeared and in the light of day one side of the back most u joint had exposed rod bearings, meaning whatever is supposed to cover it such as a spacer was gone. Thank to everyone, including the smart asses . This forum and website have never let me down.

Special thanks to Savannah, without whom I would not have been scared of catastrophic failure all day as I drove. Haha.

Best,

Charlie V

 

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