I have a 03 Silverado and took it in for a noise in the trans I thought and
they had a couple of service bulletins.  They replaced the rubber at the top
of the strut towers, and regreased the steering wheel shaft where it comes
together around the u-joint in the shaft.  It did solve the noise in the
front end.  Now the truck has 64k on it, and its making the same noise, but
louder.  Everytime that I turn the wheel or hit bumps, it sounds like a bad
cv joint.  I can feel it in the steering wheel.  I took it back to the same
dealership and they won't do anything for it.  They said that they are aware
of the steering shaft noise and said that gm won't do anything to it.  Its
not a safety issue, and that it will just do it again if they do fix it.
They want to charge me a hours labor to lube the joint again.  My fathers 03
2500hd does the same thing.  Anyone have this problem?  Any suggestions?