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SKU: CMP-J-JL-RU2 ★★★★★ (132 reviews)
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LIFETIME WARRANTY
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FITS YOUR EXACT VEHICLE
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SHIPS IN 1–3 DAYS
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MADE IN UTAH, USA
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$ 302.36 302.36 USD $ 335.95

$ 335.95

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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/2169/image_1920?unique=1765362
SKU: CMP-J-JL-RU2
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 302.36 302.36 USD $ 335.95

$ 335.95

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.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • 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.

Upgrade Your Jeep’s Suspension for Superior Comfort and Control

Enhance your Jeep Wrangler JL (2018-Present) with the Camp Series Rear Upper Control Arms, engineered to provide improved ride comfort, optimized suspension geometry, and long-lasting durability. Whether you're tackling off-road trails or cruising the highway, these control arms offer a significant upgrade over factory components, ensuring superior axle alignment and stability.

What’s Included in the Kit?

  • Camp Series Rear Upper Control Arms (CMP-J-JL-RU2)

Key Features and Benefits

  • Engineered for Strength – Constructed from 1.5” OD DOM Tubing with 5/16” wall thickness, these control arms offer exceptional durability compared to factory components.
  • Optimized Suspension Geometry – Adjustable design allows for precise alignment correction and rear axle re-centering, essential after installing a lift.
  • Premium Joint Technology – Features a Johnny Joint at the adjusting end for superior articulation and a tapered polyurethane bushing at the axle end to reduce vibration and enhance longevity.
  • Recommended Pairing – For optimal rear suspension performance, pair these control arms with our Camp Series Rear Lower Control Arms (CMP-J-JL-RL2) for complete rear-end stability and alignment correction.

Precision Adjustability for Lifted Vehicles

Lifting your Jeep Wrangler JL alters the factory suspension geometry, which can lead to misalignment, premature tire wear, and reduced stability.

Our adjustable rear upper control arms allow you to fine-tune your pinion angle and reposition your rear axle to maintain optimal handling and drivability.

  • Designed to accommodate lifts from 0 to 6 inches for maximum suspension flexibility.
  • For lifts beyond 6 inches, contact us for custom solutions.

Two-Stage Powder Coating for Maximum Durability

Each control arm undergoes a two-stage powder coating process for superior protection against rust and corrosion. Zinc primer base coat ensures a strong barrier against environmental damage. Durable top coat, available in 10 color options, allows for customization while maintaining long-term durability.

Proudly Made in the USA

At CORE 4X4, we are committed to American manufacturing quality. Our Camp Series Rear Upper Control Arms are proudly designed and built in Orem, UT, using high-quality materials sourced locally.

By choosing CORE 4X4, you're investing in precision engineering, reliability, and superior craftsmanship.

Straightforward Installation

Designed for easy installation using factory hardware, these control arms bolt directly into place without modification.

  • If your factory bolts are rusted or damaged, we offer optional Grade 8 hardware kits separately to ensure a smooth installation process.

In Conclusion

Upgrading to Camp Series Rear Upper Control Arms gives your Jeep Wrangler JL superior axle alignment, enhanced articulation, and increased suspension flexibility.

Whether you're looking for better on-road comfort or off-road durability, these control arms provide the strength and adjustability needed to keep your Jeep performing at its best.

Upgrade today and take control of your suspension!


Make Model Submodel Years
Jeep Wrangler 2018 - Present

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

Master Rebuild kit for CMP-J-JL-RU2 $ 72.00

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 Camp Series
Lift Size 0" — 6" or 6"+
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
Google

Reviews from Google

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
RC
Robert C May 27, 2025
★ ★ ★ ★ ★ Google
Fantastic products! Outstanding performance!! Absolutely the best customer service!! You will not be disappointed!
JC
John Cutler Oct 24, 2025
★ ★ ★ ★ ★ Google
In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
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.
JM
Jay Miller Jul 26, 2025
★ ★ ★ ★ ★ Google
I purchased a upper and lower set of control arms from core 4x4 they came early then expected and seem to be very nice quality I ran into a complication installing them and emailed them my question I was expecting to get the response maybe the next day because it was after hours I got a response in about a few minutes which allowed me to finish the project that day I super appreciate that, the products are good strong lifetime warranty and their customer service is top notch
SC
Singer Heating and Cooling Mar 25, 2018
★ ★ ★ ★ ★ Google
These guys are great. You can get them on the phone for support. This important and is not always the case with other custom parts builders. Their control arms are bomb proof and offer plenty of options. You can get real genuine Currie Johnny joints without paying the price for Currie arms.
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.
CM
Craig MacIver May 27, 2025
★ ★ ★ ★ ★ Google
Got the CAMP version of adjustable control arms and track bars for our 03 TJ with a 3” lift and 33x10.5 KO 2’s. Super beefy bars, great fit and adjustability. Friendly advice and support from Korby at CORE 4X4. Good follow up as well. The ride quality is great as well as the handling. I think it all looks pretty good as well.
SG
Sal Giordano Sep 24, 2025
★ ★ ★ ★ ★ Google
I want to take the time to share my experience with Core 4x4. I have a 2004 Jeep Wrangler and was looking to upgrade some suspension parts. I went with Core 4x4 upper & lower adjustable control arms and a front adjustable track bar. Everything arrived quickly, and right out of the box I was impressed with the quality and craftsmanship. I had a few questions during installation (measurements and torque specs), and I spoke with Korby on a couple of occasions. Not only did he send me detailed instructions, but he also shared an installation video specific to the part and vehicle I was working on, something you don’t get from many companies. The control arms fit perfectly, look great, and perform exactly as I hoped. I did run into an issue with the front track bar touching the front diff. When I reached out, Korby had me send pictures and then immediately offered two solutions: his bar guy could make a different bend and send it out to me, or I could get a full refund. His response honestly blew me away. As much as I wanted to run the Core 4x4 track bar, I chose the refund. Korby sent me a prepaid shipping label right away, no hassle. My experience with Core 4x4 has been excellent. Korby was extremely understanding, communicative, and helpful every step of the way. The parts I received were high quality, and the customer service was second to none. I would absolutely recommend Core 4x4 10 out of 10 times and will be using them again. Just a great American company with awesome people who truly care about their customers. Thank you Korby, and thank you Core 4x4!
TM
Tony Moller Aug 25, 2025
★ ★ ★ ★ ★ Google
Awesome parts! Support the older Jeeps! Great customer service.
BC
Brad C Mar 24, 2021
★ ★ ★ ★ ★ Google
Outstanding experience! I asked Core to build me a set of custom control arms that were larger/heavier than they normally build. They gladly accepted the challenge and turned out an expertly crafted and super strong product ahead of schedule. Fit and finish are excellent. Spence and Cameron were a pleasure to work with every step of the way. And all of this for a very reasonable price. I highly recommend these guys!

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.
Lift Size 0" — 6", 6"+
Hardware No Hardware, Complete Kit
Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Series Camp Series
Note to Core4x4: -
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