Check them anyway, you may have gotten a bad joint. Did you get greaseable joints? If so, grease them.
Still getting creaking?
Check tie rods, shock bushings (think you may have already checked these). Check the torsion bar bushings Sway bar bushings (Think you checked these already as well), Upper control arm lower control arm bushings, etc.
I mean check every rubber bushing under there. Look for dried our rubber, looks like it's being stretched. Like this:
