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Discussion Starter · #1 ·
I just installed a Rock Krawler Flex 2.5 system in my JKUR. Prior to lift I did measure all the corners so I could see how much I gained. I was 1/4 inch low on the front passenger side prior to lift. I didn't think much of it and just figured it was where it was parked (driveway has a little bit of slope).

I got the RK system installed and park in the garage (finally cleared out from the collection of parts). It was noticeably low on the passenger side. I am now measuring 1 inch low in the rear passenger and 1.25 inches low in the front passenger.

I reached out to RK and the tech wanted some pictures of the coils, so I'm waiting to hear back from that. But has anyone actually fixed this without using spacers on the passenger side?
 

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Wow, that's quite a sag.

Are you sure all the springs are seated correctly?

I mean, 1/4" to 1/2" I can see, but over an inch is bad.
 

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Mine sits 1" high driver side, on an AEV 2.5. I thought i forgot to pull out one of the leveling pucks i had in there before.
 

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Just space it

First check it is not the arms or swaybars binding. At ride height loosen and re-torque all the suspension arm and trackbar bolts (should have done this already). Pull a bolt from front and rear swaybar and check that the swaybar is not pulling the Jeep to one side. Check that the front coils are seated correctly in the bottom spring seats. Check the left rear spring is not bowing oddly from the track bar bracket.

Park on a surface you know to be flat. Have mid fuel level if possible. Measure the ride height from the spring seat to bump stop cup (there are threads on where to measure this, but with the imghost hosting change most photos are borked). It doesn't really matter as long as you are consistent side to side.
Then I suggest just spacing the low side. eg with
https://www.quadratec.com/categories/jeep_lift_kits_suspension/coil_springs/coil-spring-spacers
There is some guesswork in how much spacer to use, but I used 10mm front and rear to correct a 1/2" jeep lean. Seems good 20,000 miles later.
 

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First check it is not the arms or swaybars binding. At ride height loosen and re-torque all the suspension arm and trackbar bolts (should have done this already). Pull a bolt from front and rear swaybar and check that the swaybar is not pulling the Jeep to one side. Check that the front coils are seated correctly in the bottom spring seats. Check the left rear spring is not bowing oddly from the track bar bracket.

Park on a surface you know to be flat. Have mid fuel level if possible. Measure the ride height from the spring seat to bump stop cup (there are threads on where to measure this, but with the imghost hosting change most photos are borked). It doesn't really matter as long as you are consistent side to side.
Then I suggest just spacing the low side. eg with
https://www.quadratec.com/categories/jeep_lift_kits_suspension/coil_springs/coil-spring-spacers
There is some guesswork in how much spacer to use, but I used 10mm front and rear to correct a 1/2" jeep lean. Seems good 20,000 miles later.
Good recommendations.
I was only lower in the front passenger side by 1/2" inch, my solution was to add a 10mm spacer in that front corner, once i did that, i realized the coil spring isolator got pinched by the spring, guess from the guys who did my initial install, or perhaps at droop time, and with my 1st set of springs, they were a little shorter, and the springs were getting unsettled, so i figure somehow the spring damaged the isolator, in any case, the 10mm spacer corrected my issue in the front, i still had some lean in the back as well, with the rear driver side being a little higher than the passenger side, fixed making the rear passenger sway bar link 1/2" longer.
 

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I had a set of RK coils in my JK. They developed a lean at one point then had a little sag in the rear. I added spacers to correct then wheeled the hell out of it for a few weekends. After that I had to remove all the spacers and ended up with a 1/2 spacer in the passenger front to level things out. I have dual batteries in it so I just chalked it up to that. It has stayed pretty level ever since.
 

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Discussion Starter · #7 ·
I'm in the middle of 2 opinions and not sure which one is better.

One of my swaybar links is 10 inches, the other is 11. Swaybar is level. Is it better to have both links even at 11 or have the swaybar level?
 

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Don't worry about whether the links are the same length. Just preload them 'till your lean is fixed and the bars are roughly parallel to the ground, and you're good to go.

Mark

Sent from my SM-G935V using Tapatalk
 

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I have 2.5" RK springs. I added 1" Teraflex spring spacer to rear drivers side and 2" to passenger side. It sits level left to right with a hint of rake. Looks much better now. It drove me crazy for about 2 months before I "fixed" it.
 
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