The CV's on the front axles might complain a bit due to the new angles that they are working at.
Did you get the front end aligned after cranking the torsion bars? If not, there could be some noise due to the angle of the front wheels.
Are your CV boots in one piece, or are they torn? If they are torn (and have been for a while) then dirt and gunk may have gotten into the CV's and that is the grinding you are hearing.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless