Yep they are the AEV Geometry Correction Brackets, I had them on my JKUR until they cracked!
They allow you to set the upper control arms at the correct pinion geometry according to the lift height of the vehicle. You'll notice that the rear bolt on the upper arms has 3 positions, 2.5", 3.5" and 4.5".
The interesting thing is yours appears to have been installed with non AEV springs and shocks not that it matters much.
They're a great idea but being a 2 piece design they are prone to cracking. There are other version available that are actually braced and welded together that are more rigid and far less prone to cracking.
Whilst adjustable control arms will allow you to set the pinion angle as well, these keep the control arms at the same angle as when stock. Adjustable control arms are going to give a better ride off road yet not as smooth on road due to the design.
__________________
I'm interested in apathy.
2014 Anvil JKU Rubicon
Last edited by timbotrog; 21-09-2019 at 01:25 AM.
|