HELP! Spacers on a coil lift?

Fastlion

New member
Hi all,

I have a 2014 JKU Hard Rock Ed. with a Teraflex ST/2 lift kit (2.5”), appropriate Falcon 3.1 shocks & 285/75/17 BFG KO2 tires (33.8” x 11.2”) on stock Rubicon wheels with a 1” G2 wheel spacer.

I’m experiencing some noticeable sagging issues toward the rear of the Jeep and was wondering if I could make the following system work without having to replace my entire lift kit (only 1 year old):

1) Replace stock Teraflex ST/2 coils with heavier duty 2.5” Outback Overland coils.

2.A) Add 1/2” spacers to the front and rear coils (without throwing off geometry)?

OR

2.B) Add 1/2” spacer front & 3/4” rear?

OR

2.C) Add 1/2” spacer rear only?

3) Add fast adjust upgrade to Falcon 3.1 shocks to compensate for new “Outback” coil spring rate (soften?).

4) Install my Rock Slide Engineering flat fender flares to allow greater articulation.

I would like to run the Goodyear MT/R Kevlar 35s on new backspaced wheels next on that set up for a tad more clearance and traction down the road.

The Jeep is my daily driver/road trip car/overlander. I don’t plan on doing any rock crawling out here in Southern California (mostly trails), I just want a bit more clearance so I don’t bottom out on my break over angle (I recently got hung up like a turtle over a roadside dirt berm that I shouldn’t have had an issue getting over).

Thanks for any knowledge you have and any helpful suggestions,

Greg
 

jscherb

Expedition Leader
OR

Install an AirLift 1000 load support system: https://www.airliftcompany.com/products/air-springs/air-lift-1000/. They're about $120 and work very well for Jeeps that sag in the rear. When I carry a full overlanding load (roof top tent, kitchen with fridge and all the other gear I take for camping) my JUK sagged a bit; with the AirLift system the sag is gone under any load, I can adjust the pressure depending on the load I'm carrying from minimal pressure for no load/daily driving up to about 30psi for the full overlanding load.
 

X-plorenow

Adventurer
Is it just a visual sag with no impact to overall performance? Add a spacer, just needed on the rear, unless you want to gain further lift upfront, then add both but with more added to the rear.

If you are having issues with bottoming out in the rear etc as well then upgrade to stiffer springs. Adjustable shocks will help to better manage this as well but not as necessary.

Fenders, are you up in the fenders when your suspension is cycling? Flat fenders will help but will not improve performance or level you out if that is what you are looking to do.

So it all depends.
 

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