Ask AC?
I had a noise like that. I removed the front stabilizer bar and used a rubber safe lube on the bushings and that was the end of it. Try that it only takes like 30 min. But watch the re torque as it is not as much as you think, You can get an Idea if you do some reverse thinking and up your torque wrench as you unbolt it until it clicks and moves, minus out about 10lbs and re torque to that. But the answer is here somewhere i have seen it.
MC