That was the main reason, actually figured it would have cost around the same to have someone else rebuild the old drive shaft (ie. universal-joints and such) and do the labor as it would have cost for the Aluminum 1pc so decided to do it myself with the 1pc. When I talked to Powertrain about the vibration problems I had read about, they told me the ones with the vibrations in them had too big of a piece of card board put inside. Not sure if it was all in that batch or just certain ones in the batch that was bad.
