How many miles are on it?

Check the control arm bushings. They may need some lube, or if they're twisted you may have to loosen the control arm bolts and rotate them... sort of like re-indexing them for the new control arm position. Also take a good look at the sway bar bushings and end links. Putting the 2" spacers on changes the position and load on these parts which tends to give you warning signs that they're on their way out sooner than if you had left it stock. It doesn't mean the lift ruined them, just that they would have needed to be replaced soon regardless.

And you're positive the 3 bolts on top are tightened down good?