INSTALLED MOPAR 2" LIFT <cringe face>

[Titan2727]

That's what I would of thought too, but here is an example of adjusting caster fixing the steering problems on a lifted JL. He actually went from giving up and trading it in, but fixed it via caster adjustment.

Thread: https://www.jlwranglerforums.com/fo...use-of-the-crap-steering-good-bye-jeep.14924/

Conclusion post confirming the fix: https://www.jlwranglerforums.com/fo...eering-good-bye-jeep.14924/page-7#post-401807

I called Teraflex about their JL drop bracket kit to ask a question to help out another JL owner and Teraflex told me they are getting many validations on this kit fixing the problem on Mopar Lift Kit steering issues. I asked them why some JLs don't need this and some do, they said because the alignment component geometry is inconsistent thus some JLs need it and some don't. This aligns perfectly with why some stock, non-lifted JLs don't have the steering issue and some do. You can have 4.5 caster on 2 different non-lifted JLs and one wanders / drifts all over the place and the other one doesn't, then adding the longer lower controller arms on the one that wanders/drifts getting it to 5.5 caster then stops drifting. Again, all due to different geometry in the front end, like the welding locations between critical parts are off on some and some are exactly where they should be.

There are at least 2 or 3 examples of lifted JLs being fixed with adjusting caster in the steering thread at https://www.jlwranglerforums.com/fo...ering-feels-like-it-has-play-and-drifts.3691/. Way too many posts to re-read to find them.

After verifying tire pressure, other alignment variables, checking springs, verify correct torque on ball joint nuts, etc., then caster would be the next step.

I mean, sure, if your rig is all over the road like a drunken sailor then yeah adjust away cant hurt can only help. But should be needed unless there is another underlying issue..that's all

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[Spank]

Did you torque everything correctly? You can't just bolt it on and call it a day. Every single bolt you removed and reinstalled needs to be torqued EXACTLY to spec on the ground. This makes a huge difference.

 

[NathanG]

Either your lift is incorrectly installed, a tire pressure/tread pattern issue, a loose steering box that was exacerbated by the lift, or you are exaggerating. Mopar lift on 35 inch K02's and my JLUR drives/ rides better than stock.

 

[JLGuyFTLD]

No need to adjust casters on 2", maybe 4" or more but not 2. Just saying...

@JLGuyFTLD what kind of tires do you have and at what pressure? Bring back to dealer AFTER you do your own inspection - also, was it or has it been windy in your area? Remember now your a little higher up with a bigger profile so wind could be contributing.

I have 35’s. Mickey Thompson ATZ P3. Pressure at 38 - Little windy. I just miss the tight driving I had uuuuugh!!!

 

[JLGuyFTLD]

This has been known to fix the exact symptoms you described - https://teraflex.com/shop_items/jl-jlu-2-5-4-lift-front-lower-control-arm-drop-bracket-kit-pair

These TeraFlex JL/JLU: Front Control Arm Sport Brackets are a must to correct caster angles and restore factory geometry on JL Wrangler or JLU Unlimited models...

Simply install these bolt-on brackets with the stock front upper and front lower control arms on a 2.5-4.5” lift kits.

Fits:

• JL Wrangler (2-door)
• JLU Wrangler Unlimited (4-door)

I have the mopar 2” lift... Are these TeraFlex control arm sport brackets going to work with me?

 

[JLGuyFTLD]

The shop that did install is very reputable

 

[cktlarge]

I would make sure everything is torqued and installed correctly, lower the tire pressure, and then correct the caster.

 

[jeremyjeep]

I have the mopar 2” lift... Are these TeraFlex control arm sport brackets going to work with me?

Yes, but call TeraFlex to double-check. Also, make sure your 4x4 shop will install them for you. But as cktlarge said, check everything else first like torque specs on all ball joints, torque on the control arm bolts, pitman arm nut, tie rod end nuts, etc. Verify all other alignment specs are right (camber, toe-in, etc.), tire pressure matches or is slightly below the door jam (unless you have new tires with different recommend PSI), etc. etc. etc. Then install the control arm brackets as the last resort.

 

[Titan2727]

I have 35’s. Mickey Thompson ATZ P3. Pressure at 38 - Little windy. I just miss the tight driving I had uuuuugh!!!

Shit, hope mine doesnt loosen up...we'll see I guess

 

[TLife]

The shop that did install is very reputable

Even reputable shops make mistakes.

 

[jeremyjeep]

Shit, hope mine doesn't loosen up...we'll see I guess

It shouldn't, unless there is an underlying issue that either comes to light after being lifted, or was there already and gets exaggerated after being lifted. You might want to check all of the torque settings on everything first before it gets lifted. Not necessarily change torques, just document it.

 

[W5MQS]

I've had the 2" Mopar lift and 35" tires installed on my JLUR since May of this year and haven't had a single issue at all with it...and I certainly didn't have to purchase those Terraflex items to adjust the casters. I feel my JLUR rides better with the Mopar lift than what it did on the stock Rubicon suspension.

 

[OffRoadWarehouse]

As smooth as it is sometimes… I just feel that it’s so bumpy and especially when I’m on the highway it is swerving to the left and to the right ... A very reputable 4 x 4 bodyshop did my install and they do these Mopar’s all the time on JL’s ... I will say this… They are standing by their words that the skyjacker lift for the JL is far more superior than the Mopar !!


Thank you I will look into this

Please fill us in if you end up doing this! The larger pool of participants we get installing these, having the issues, and correcting it allows everyone to know what's really going on and fix it before it happens.

Good luck!

 

[MojitoJLUR]

The shop that did install is very reputable

I bought the mopar based on the recommendation of the owner of a company that a lot of us have bought aftermarket parts from. He doesn't sell Mopar, but he does sell Rock Krawler. He told me that his JL with 37s and mopar lift rides the same as stock, so I took his word for it. I installed my lift and have zero problems. It really does drive the same as stock with my 37s. So it makes me think something isn't right with yours. I hope you figure it out because in my opinion, it is a nice lift. I'm new to all this so i'm still learning, but the only downside I've heard is that the Mopar lift doesn't give you as much flex as other lifts like Rock Krawler.

 

[dannko]

This has been known to fix the exact symptoms you described - https://teraflex.com/shop_items/jl-jlu-2-5-4-lift-front-lower-control-arm-drop-bracket-kit-pair

These TeraFlex JL/JLU: Front Control Arm Sport Brackets are a must to correct caster angles and restore factory geometry on JL Wrangler or JLU Unlimited models...

Simply install these bolt-on brackets with the stock front upper and front lower control arms on a 2.5-4.5” lift kits.

Fits:

• JL Wrangler (2-door)
• JLU Wrangler Unlimited (4-door)

It's odd to think Mopar would not have tested to make sure the items these Teraflex brackets are supposed to fix. Sometimes I feel like it's just a constant barrage of products fixing any mods done.

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