Try it yourself. IMO yes its needed, for you who knows.

 

Damn, there must have been something wrong with your stock sway bar because I can tell a notable different with my front disconnected. I did remove my rear, and it was not noticable, but with the front disconnected the Jeep is all over the place now, and scary to drive at highway speed or back country roads. My stock Rubicon sway bar took a dump, so I got the Evo manual disconnect for it. I do like not having a rear bar while rock crawling, in conjunction with the front disconnected.

 

Our springs and shocks are likely different so what I feel isn’t going to be the same as what you feel. I am using teraflex 3” springs and fox shocks.

 

Not that much different. Synergy 4.5" springs and Fox 2.0 Resi shock. But you do you and enjoy it