Truck swaying

Hey guys. I got a rough country 4” lift, upper and lower control arms, new Nitto ridge grapplers (285/70/17) and wheels. And alignment all at the same time about 4 weeks ago. Most of the time my truck rides great. But every now and then. It’s hard to keep straight. Steering wheels vibrates pretty hard. And, for instance, if I go over a bump with my left driver front tire it will dart over the right. Do you think it was aligned wrong? Or steering rack bushing. Sway bar?
I have JBA uppers. Thanks

 

Do you have your alignment numbers?
What is your caster set at?

 

No I don’t have the numbers. And I have no idea what the shop set it on.

 

I am having a similar problem. No one has been able to come up with a solution or the root problem. I have replaced all shocks and had an alignment. Here are my numbers. If anyone can help me out as well I would greatly appreciate it.