Creaking and Moaning when driving and turning on 2002 Chevrolet Suburban 1500

We have been having a loud creaking and moaning in the front end of our Suburban for some time now. I already replaced the lower control arms on both sides which included the new bushings and lower ball joints. I greased everything as well as the upper ball joints. We are still experiening the same problem. Any suggestions on what to do next?

Asked by for the 2002 Chevrolet Suburban 1500
You have already replaced the likely canidates for creaking and moaning sounds does your truck have a sway bay try squirting some silicon spray on those inner and outer bushings and see if the noise goes away.