I have a Ulimited JK with a good amount of weight on it (ARB tent, Gobi rack, lod fullwidth rear, highlift, corner armor and 35's).

I have Front and Rear JKS adjustable trackbars, Front Discos, Front Upper Control arms, and had 2.5" terra flex springs and shocks front and rear. I had so much sag in the rear I put 4" terra flex springs in the rear to get the back end back up. Currently the rear sits about 1/2" higher then the front. When I load it for camping it will be close to level, but I might just put some spacers in the front to help level it.

With this setup I have a ton of rear sway and steering delay when changing lanes or going around corners to the point where it feels unstable to drive. I am wondering what the best way to get rid of this is.

Should I preload my rear sway with adjustable rear links by putting them too +15 degrees or so? (currently sitting at about -5 degrees which I think it should be closer to +5)

Should I get a larger rear sway bar?

I could also put my 2.5" springs back in with smaller spacers and some airbags. The 2.5" springs were very compressed from the weight, I had maybe just over an 1" before I hit the bumpstops

 

Id get a stiffer rear swaybar. I think rock krawler makes one.

 

Sounds like you need heavier springs for starters if they are that compressed. Maybe OME HD lift would be the route to go.

 

Northridge4X4 makes a long travel kit, with the HD springs, you might even ask David at Northridge for a set up.