Alright, so basically everytime I go over a bump, i feel my car shake left to right in the rear, I got my alignment done and I balanced my tires. I have air suspension also, with LCA, UCA, traction Arms. The problem still occurs, I never dealt with this before, so i'm wondering if any of you guys did and could help me out. All positive ideas are welcomed . Thanks!

It use to shake left and right badly before the alignment and balance.
Now it happens at 35+mph

 

Sway bar end links all there and torqued to spec?

 

Mine does that after I changed all my coils on my bag setup to all the way stiff. It is a weird feeling.

A fix? Not sure. For me I suppose I could swap them back to a softer setting.