Pansil--Hats off to you: It seems that English is your second language (third?). Anyway, we prefer not to call a Jeep a car. There are lots of companies making cars. You own a Jeep, and there is nothing else in the world like it.
I just wanted to emphasize that part about on the ground. Also, you might try checking out some of the threads on death wobble, sometimes abbreviated DW.

 

pansil......you really don't like kittens, do you?

 

Pansil it sounds like your shop mechanics are not very familiar with installing lift kits. Leaving the sway bar disconnected is going to introduce a lot of roll on your lifted Jeep.

I suggest that you follow Mark's advice and research Death Wobble (DW) and OME lift kits with the search function and then ask questions regarding anything that you don't understand.

Then go back to your shop and tell them exactly what you want them to do including checking the balance of your wheels.