ML>So .. I take the Buick to my friend.  He jacks it up.  Oops!  It has an
ML>aluminum drive shaft!  I've never seen this before and he tells me he cannot
ML>check, straighten it.  As well, yes, I've had drive shafts custom balanced i
ML>Houston a hundred miles South of me in College Station, Texas. But welding
ML>balance weights and fooling with aluminum tubing?  Hmmmmmm...

ML>Who should I listen to as to what they tell me about this?  What are the
ML>thoughts here?

I agree with your friend to not mess with the Alumimum Drive shaft .
While it can be done the welding is tricky and you cold end up having to
buy a new one anyhow. OR have a custom driveshaft made, Unless there is
already is one in the after market.
---
 þ SLMR 2.1a þ Typo Tom Strkes Again