Squeaking Noise in Rear Suspension

[Savage6.2]

I have an 07' Yukon Denali, ever since i have had it there has been a noise coming from somewhere in the rear suspension. It has Auto ride and is not lowered or modified in any way. The noise only happens when i go over large bumps or come to a hard stop. I think it might be the rear sway bar bushings, links, or some other bushings. Have any of you experienced this problem or something similar?