Squeaking, maybe grinding noise from front left suspension

[broken08]

It is most prevalent when i unweight the left side. Like doing little weaving right to left. or a quick jab on the gas to lift the front end a bit. Almost sounds like threads on something sliding up and down against a metal hole. Having trouble replicating while stopped.
All shocks replaced 20k ago with OEM.
I know the older model yukons had that shock top bushing problem, but does this series? Any thoughts?
Nothing loose or obvious on visual or shaking by hand.
Appreciate any thoughts.

 

[dnt1010]

Could be a dry ball joint. GM did not put grease fittings on the 09's and at 200k my passenger side upper and lower ball joint were complaining a bit. A grease needle works great for shooting some grease into the grease boot......

Wheel bearing is also suspect. I would jack up the wheel and double check for any play in the wheel bearing plus turn the wheel briskly by hand and listen for a roar or roughness in the wheel bearing.

 

[kbuskill]

Check the sway bar end links as well.