Sorry been away a few days. It's a rough country with m1 shocks. The shop said they can't find anything wrong with it, and the frustrating thing is now when I bounce on it, it doesn't squeak at all but I can still hear it when hitting bumps going down the road. I can't believe it would be just dirt but it has me wondering now. I'm going to spray things out the best I can and go piece by piece to lube things up. It's maddening because sometime it sounds a freaking landscaping trailer.
I should also point out it hasn't been like this the whole time. For 800 miles it was great and I felt it softened up a bit (which is good), but maybe I just got used to it. The shop said nothing was loose, they checked all bolts.
Have the bolts/nuts all been retorqued? I believe most suspension kits need to be checked with a torque wrench around 500 miles after installation.
Have a look under there for anything that might be hitting that shouldn't be. As an example, the lower spring seats on my aftermarket struts were rubbing against both front axles, and it required me to "shave" material off the spring seats to make it right.
Also, sometimes there are noises with upgrades that stick around. For instance, mine has a clunk noise at low speeds going over speed bumps. It only goes away when I disconnect the sway bar. I've tried different types of end links, changed the angle of the sway bar, checked torque on bolts/nuts multiple times, replaced sway bar bushings, lubed it, and nothing but disconnecting the sway bar works. There are quite a few threads on the internets about this.
So I dunno. I do however, hope you find out what it is and can get it fixed. Please let us know what you find, because it could be helpful to others!