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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
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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%
GK
GLENN KOSZKA Apr 27, 2025
★ ★ ★ ★ ★ Google
The folks at Core 4X4 are always wonderful to deal with. They explain your options and never pressure or rush things. The quality of the Core Control Arms is top shelf, especially if your goal is to stop wheel hop. I recommend Core 4x4 without reservation ! ! !
PM
Paul Melancon Aug 25, 2025
★ ★ ★ ★ ★ Google
Ordered a control arm and track bar kit for my WJ from Core 4x4 on Monday 7/28 and received it today, Friday 8/1. Im not a state or two away, im in CT aka the other side of the country. Communication is phenominal, emails were responded too in an hour or less. Parts arrived well packed, not damaged, and are great quality for my needs. There arent many companies left that service customers as well as Core 4x4 and i wont hesitate to check them out again if i need something else. Well done!
LM
Logan Matejek May 27, 2025
★ ★ ★ ★ ★ Google
The parts are a massive improvement over factory. I accidentally ordered the wrong endlinks and they helped me figure out the correct size and sent me new ones. Definitely an awesome store
TM
Tony Moller Aug 25, 2025
★ ★ ★ ★ ★ Google
Awesome parts! Support the older Jeeps! Great customer service.
JI
Jerome Segura III Jun 26, 2025
★ ★ ★ ★ ★ Google
I bought the 16pc Cruise Series Adjustable Control Arm, Track Bar, Steering, End Link Kit to replace a worn budget 4" lift on my used JKU. These are top quality parts; very solid. Customer service is unsurpassed. They even matched prices on my order placed before the tax day sale. I made an error in ordering a drag link flip kit; they were quick to help me fix this too. There's peace of mind knowing these components are made in the USA. Thank you. 👍👍
MT
Mike T Nov 23, 2025
★ ★ ★ ★ ★ Google
Korby and the rest of the team at Core 4x4 know there stuff and answered my question in a timely manner. They even were able to quick ship a re-build kit for me so I could get my truck back on the road- Thanks!
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!
KK
Kevin Kinard Oct 24, 2025
★ ★ ★ ★ ★ Google
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
AS
Anthony Snyder Jun 26, 2025
★ ★ ★ ★ ★ Google
Great experience and really great parts
P
Paul Mar 24, 2023
★ ★ ★ ★ ★ Google
I've been having trouble with the track bar (on my 2nd gen Dodge) since I installed the 3rd gen Synergy adapter bracket and a 3rd gen stock bar.. oddly, they call it a '3rd gen bracket' and the stock 3rd gen bar doesn't quite fit, making contact with the bracket. I had attempted to clearance the bracket but it was still making contact and I could feel it over large bumps. I reached out to a lot of companies, but Core 4x4 offered to make a custom bar for the application with adjustability and dual Johnny joints. The first pass on it didn't work but they sent me out another passenger side end that made it fit incredibly well. This was all done solely over email/descriptions/pictures/measurements. Bar is super high quality and heavy duty, made in the US by a family owned company and carries a lifetime warranty. The customer service was responsive and superb, and the price was a lot less than I expected.

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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