Are all stock driveshafts of the same quality?

So one person says just to get U Joints, and the other says to get a new shaft. Any other opinions? The car is going from a /6 to about 400 hp and a 8 3/4.

Thanks!
:shock: and your wondering if you should reuse the old \6 shaft w/ little tiny baby u-joints?

no...

and please don't start a "should i keep my 8" front drum brake set up?" thread...

good luck with the car :)