new rear shocks & springs --- now squeak.

[the blur]

2013 LTZ, Got ride of the auto ride in the rear. Went with Moog springs, and Bilstein shocks. Had to drop the sway bar end links to get the springs in.
Now I have a nasty squeak. Every bump, every time the rear goes up and down. annoying squeak.

I'm thinking, maybe I preloaded the sway bar, but now I'm thinking, the end links are a ball type bushing, so they cannot be preloaded.
I did go with new isolators. Anyone ever hear of squeaky shocks?

 

[OR VietVet]

Take a can of silicone spray and spray all contact points of what you just installed. Top and bottom of springs. Top and bottom of shock mount areas. All over the end links.