can anyone tell me the advantages or disadvantages of lower adjustable control arms vs fixed?

 

You have the ability to dial in your castor angle. You also have the ability to extend them for taller lifts/etc.
Having adjustable uppers and lowers helps you center the axle in perfectly under the Jeep..and you can even add a bit of a stretch to the wheel base.

 

Plus you get very smooth movement. I'm doing token uppers and lowers in about 4 weeks and can't wait. The jonny joints is where it's at IMO. The rubber/poly bushing are grippy to the movement

 

ok thanks. I'm looking at a 3" zone lift or 3.5 RE lift. The RE comes with fixed lower control arms. The zone doesn't have any. So I'm wondering if the RE fixed are ok or should I be getting some adjustables anyway. I really doubt I'll ever go higher than either one of these lift heights, so I'm not looking to do more in the future.