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LIFETIME WARRANTY
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MADE IN UTAH, USA
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214.16 214.16 USD 251.95

251.95

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🔧 Built to order · Ships in 1–3 business days

COLOR 11 colors — pick yours
https://jerdev.core4x4.com/web/image/product.template/2149/image_1920?unique=1765362
SKU: CRS-J-JL-FU2
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

214.16 214.16 USD 251.95

251.95

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Note to Core4x4:

Select Color to see price and add to cart.

WHAT’S INCLUDED
4
Upper Control Arms
4
Lower Control Arms
2
Front Track Bars
2
Rear Track Bars
4
End Links

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Ships in 3 Days From our UT facility
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Why Builders Choose CORE 4X4

Warranty facts, not marketing language.

vs. MetalCloak

Their “lifetime” language refers to their service model. Actual parts warranty: 1 year. Ours: lifetime.

vs. Teraflex

Skip a maintenance interval? Their warranty voids. Ours doesn’t.

vs. Clayton Off Road

Clayton warrants their Johnny Joints for 90 days. We cover ours for life.

Regain Proper Caster Improve Front-End Stability

When lifting your Jeep Wrangler JL, maintaining proper caster angle is crucial for steering stability, handling, and overall drivability. Factory suspension geometry is already lacking in caster, and adding a lift can worsen the issue—leading to wandering, following ruts in the road, and a loose steering feel.

Our Cruise Series Front Upper Control Arms are designed to fine-tune caster correction, improving steering precision, high-speed stability, and tire wear. When paired with our Cruise Series Front Lower Control Arms (CRS-J-JL-FL2), this combination completely restores axle centering, suspension alignment, and caster angles, offering a full front-end suspension solution for lifted Jeeps.

What’s Included in the Kit?

  • Cruise Series Front Upper Control Arms (CRS-J-JL-FU2) (Pair)

Key Features Benefits

  • Restores proper caster angle – Adjustability allows fine-tuning of suspension geometry, eliminating wandering, pulling, and unstable steering after lifting your Jeep.
  • Improves steering response high-speed stability – Proper caster helps keep your steering wheel centered and reduces fatigue from constant corrections.
  • Heavy-duty steel construction – Built from high-strength steel tubing, these arms deliver long-lasting durability and enhanced off-road performance.
  • Unique U-bracket design – The axle end U-bracket mounts directly to the factory axle bushing, maintaining a secure and quiet ride.
  • Recommended pairing for maximum stability – Combine with our Cruise Series Front Lower Control Arms (CRS-J-JL-FL2) to fully correct caster, re-center the axle, and eliminate steering instability.

Adjustability for Lifts from 0 to 6 Inches

Whether you're at factory height or running a 6-inch lift, these fully adjustable control arms allow precise caster correction and suspension alignment. If you’re running a lift over 3 inches, pairing with our adjustable Front Lower Control Arms ensures full caster correction and axle re-centering for maximum control. For lifts beyond 6 inches, contact us for additional options.

Durable Two-Stage Powder Coating

Each control arm undergoes a two-stage powder coating process: Zinc primer base coat – Ensures maximum rust and corrosion protection, especially in harsh climates. Durable top coat – Available in 10 color options, allowing you to customize your Jeep’s suspension components while adding extra durability.

Proudly Made in the USA

Manufactured in Orem, UT, these control arms are built with 100% American-made materials to exacting quality standards. By choosing our Cruise Series, you support local manufacturing and high-quality craftsmanship.

Optional Hardware Upgrade

Our Cruise Series Front Upper Control Arms are designed to reuse your Jeep’s factory mounting hardware. If your existing bolts are rusted, worn, or difficult to remove, we offer optional Grade 8 hardware kits separately for a hassle-free installation and added durability.

In Conclusion

If you’re experiencing wandering, pulling, or unstable steering after lifting your Jeep, proper caster correction is the key to restoring drivability. The Cruise Series Front Upper Control Arms provide adjustability for caster correction, improving steering response, axle positioning, and high-speed stability.

For the best results, pair with our Cruise Series Front Lower Control Arms (CRS-J-JL-FL2) to create a complete front-end suspension upgrade, eliminating wandering, rut-following, and excessive steering corrections.

Upgrade today and take control of your Jeep’s handling!


Make Model Submodel Years
Jeep Wrangler 2018 - Present

Each rebuild kit includes all necessary components to replace and restore wearable parts.

Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Series Cruise Series
Hardware No Hardware or Complete Kit

Select your lift size in Step 1 — the kit ships with the correct geometry for that height. If you’re running a non-standard setup, call us before ordering and we’ll confirm compatibility.

Death wobble is a geometry problem, not just worn parts. Cruise Series corrects caster angle and eliminates the flex points that let shimmy start. Replacing one part at a time delays the fix — this replaces the geometry.

Yes, if you’ve done a lift kit before. Full-day project. Watch the complete JT install walkthrough on our YouTube channel — most owners wrap it in a day. Any off-road shop can run it if you’d rather have it done.

Any non-wear component fails — we replace it. No mileage cap. No maintenance intervals to track. No fine print about voiding if you miss a service. Lifetime means lifetime.

Teraflex’s lifetime warranty voids if you miss a maintenance interval. MetalCloak’s actual parts warranty is 12 months — their “lifetime” language refers to their service program. No conditions here.

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
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Reviews from Google

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
MB
Melody Baker Jan 22, 2026
Google
I ordered a part for my 03 Jeep TJ and all I can say is wow! Korby at Core 4x4 is a total rockstar!! There was a glitch with my payment and within minutes, Korby reached out to me to get it fixed, then sent my receipt with the tracking number. I lost the number and reached out to him during the Holidays and got a rapid response with the number again. I can’t say enough about the customer service and the quality of parts. Thank you!!
JW
Jonathan Word Aug 25, 2025
Google
Beefy parts made and painted well, very fair pricing for what you get, and fantastic customer service to boot. Easily my favorite place to get suspension parts.
BA
bryan angell Jun 26, 2025
Google
First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
GM
George Mar Sep 24, 2025
Google
Great company. Highly satisfied with Core 4x4 customer service. Had some bushings fall apart around 600 miles from home. Called and spoke with Korby Linscomb on Thursday, late in the afternoon. He was able to get my bushings sent across country overnight at a very reasonable rate. Had me up and running by Friday evening with enough time to enjoy the Great Smoky Mountain Jeep Invasion. Thanks Guys!
BS
Bailey Smith Mar 23, 2025
Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
AL
Andrew LaFave May 27, 2025
Google
I am really please with this company. Great product, i had an issue with a couple of the jonnhy joint bushings, they explained what had caused it and how to fix it. Within hrs of receiving my inquiry, i had heard back with the required info I needed. A couple hrs later problem was fixed and ready for the trail again. They care about heir product and their customers. Thanks crew, you rock
SA
Samuel “SamDaman904” Anscher Mar 23, 2024
Google
I meant to put this reviewing about a year ago now, but ever since I’ve had the core 4 x 4, upper and lower control arms on my 2017 ram 1500, they have worked flawlessly leave been on many offering chips, and I’ll definitely be buying new accessories from them in the future and their new upper control arms that they’re offering for all of the ram trucks. Fantastic customer service fantastic health very automotive, off-road, friendly, and any aftermarket thing for your truck or SUV that they currently have!
RH
Roger Hooks Jun 26, 2025
Google
2018 Ram 2500 Rear Control Arms and Rear track Bar been running for about a year, Great Solid Products and great one on one customer service, same day response with issue resolved! Thanks Korby!
E(
Eric Hernandez (savagefit) May 27, 2025
Google
The whole process was quick and painless. The products are top tier and when I reached out them for package update info, Korby Linscomb was very responsive, and got me the answers I needed the same day. Even when I emailed back to some additional info, he sent what I was looking for that same day. I love core 4x4 and will be giving them my business from now on.
8
89Patriot Jan 22, 2026
Google
Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.

Specifications

Color Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Hardware No Hardware, Complete Kit
Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Series Cruise Series
Note to Core4x4: -
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