Unusual squeaking/shocks issue?

[liftednali]

I have a 2000 Denali (OBS) and for the past week or so I've noticed every time i hit a series of little bumps there is like a squeaking noise as i hit them as something is loose what could that be? Also sometimes if there's a sudden change of pavement for example coming off a bridge or freshly paved road in a construction zone to older paved road it feels like the shock seized up and its a drop. I've noticed it more often with what seems to be the drivers front side but it also happens with the rear, like when i hit a speed bump too fast or something it drops, you can feel and sort of hear it. What could the issues be?

Thanks

 

[SunlitComet]

Broken suspension components. Put it on a drive on lift and bounce it up and down while watching the components and listening.