I have a 07 4dr jku. I have a 2.5 rc lift rc dual steering stabilizer and im running 325/65/18 pro comp extream ats. With in the last few weeks or so I have been I noticing a new vibration when I get to speeds between 70-80. I have had a problem with DW but I fixed that by replacing all four ball joints. I get a small wobble at speeds between 50-60 but it goes away. anyone have any thoughts on where I should start. The small wobble doesnt really bother me its the one at 70-80 that I really need fixed but im betting they are related.

 

I had the a similar vibe. I removed my front DS and it went away. My U-joints were going out.