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268.76 268.76 USD 335.95

335.95

1–3 day build time + Shipping

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Jeep Wrangler JK / JKU 07-18 2pc Camp Series Rear Upper Adjustable Control Arms

SKU: CMP-J-JK-RU2
Fits: 2007 - 2018 Jeep Wrangler JK / JKU Add vehicle

268.76 268.76 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.

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

Enhance Your Jeep’s Suspension for Maximum Comfort and Control

Upgrade your Jeep Wrangler JK (2007-2018) with the Camp Series Rear Upper Control Arms, engineered to improve on-road comfort, off-road articulation, and suspension durability.

These adjustable control arms provide better axle alignment, improved handling, and reduced drivetrain stress, making them a crucial upgrade for lifted Jeeps.

What’s Included in the Kit?

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

Key Features and Benefits

  • High-Strength DOM Tubing – Constructed from 1.5” OD DOM tubing with a 5/16” wall thickness, these control arms are significantly stronger than factory components, ensuring increased durability and long-term performance.
  • Precise Axle Alignment – Adjustable design corrects rear axle positioning, reducing drivetrain strain and ensuring proper suspension geometry after lifting your Jeep.
  • Johnny Joint for Maximum Flexibility – The adjustable end features a RockJock Johnny Joint, providing exceptional articulation, reduced wear, and smoother off-road maneuverability.
  • Tapered Polyurethane Bushing – The axle end is equipped with a durable polyurethane bushing, absorbing vibrations and enhancing ride quality.
  • Optimized Suspension Geometry – Adjusts to accommodate lifts from 0 to 6 inches, preventing issues like incorrect pinion angle and excessive driveshaft wear.
  • Recommended Pairing – For optimal performance, we recommend pairing these arms with our Camp Series Rear Lower Control Arms (CMP-J-JK-RL2) to ensure proper rear axle alignment and improved stability.

Why Proper Rear Axle Alignment Matters

Lifting your Jeep Wrangler JK can throw off suspension geometry, leading to poor alignment, excessive driveshaft angles, and axle misalignment.

Without adjustable upper control arms, your pinion angle may become incorrect, causing:

  • Driveline vibrations
  • Excessive wear on U-joints
  • A rough ride

The Camp Series Rear Upper Control Arms allow you to fine-tune your axle position, ensuring your Jeep drives smoothly and efficiently while maximizing off-road articulation and traction.

Two-Stage Powder Coating for Maximum Durability

Every Camp Series Rear Upper Control Arm undergoes a rigorous two-stage powder coating process for superior corrosion resistance and longevity: Zinc primer base coat – Provides a barrier against rust, road salt, and harsh environmental elements. Durable top coat in 10 color options – Adds long-lasting protection and allows you to customize your Jeep’s suspension to match your build.

Proudly Made in the USA

Manufactured in our Orem, UT facility, our Camp Series Rear Upper Control Arms are crafted with American-made quality and precision.

We use locally sourced materials and oversee the entire production process to ensure every part meets our high standards for durability and performance.

Optional Hardware Upgrade

Designed for easy installation using factory hardware, but if your Jeep has rusted or worn-out bolts, we offer optional Grade 8 hardware kits, available separately, to ensure a smooth installation.

In Conclusion

The Camp Series Rear Upper Control Arms are an essential upgrade for Jeep Wrangler JK owners looking to:

  • Correct rear axle alignment
  • Improve ride quality
  • Enhance off-road performance

With heavy-duty construction, full adjustability, and premium joint technology, these control arms ensure a smoother ride, better suspension articulation, and maximum durability.

Upgrade today and experience the CORE 4X4 difference in quality, performance, and American craftsmanship!


Make Model Submodel Years
Jeep Wrangler 2007 - 2018

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

Vehicle Jeep Wrangler JK / JKU (07–18)
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

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%
AP
Ajay Paynter Mar 4, 2026
Google
Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
RC
Robert C May 27, 2025
Google
Fantastic products! Outstanding performance!! Absolutely the best customer service!! You will not be disappointed!
PB
Peter Busack May 27, 2025
Google
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
BM
Brantly Musgrave Jan 22, 2026
Google
First and foremost would like to say that Core4x4s customer service is top notch and they definitely stand behind their warranty on products! Highly recommend using them for any of your off road needs! It’s rare to find a company now a days that backs their products and they do! Had a few issues with mounts and control arms and they handled it without hesitation! Thank you!
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.
DD
DANIEL DUSSAULT Nov 23, 2025
Google
Very beefy items for a very reasonable price.  Personally have CORE rear track bar and all upper control arms for my 04 Jeep TJ.  Had a slight issue with control arm length and they went above and beyond to swap jam nuts to get me where I needed to be.  Really have to appreciate a company like this.
N
niceguyr1 Mar 24, 2023
Google
I purchased upper and lower adjustable arms for my WJ and lowers were missing the spacers. I didn't know until 3 months later when I was installing them. With absolutely zero hassles they quickly sent me the missing spacers. Fantastic product and service! Huge thank you guys for the awesome service and parts!!! Customer service is quickly becoming a lost commodity and you guys gave me hope that it's still alive and well, you just have to buy from the right people... Thanks again for going above and beyond! 👍👍
DN
Devan Nelson Mar 25, 2019
Google
Had a great experience with Core 4x4, I desperately needed a custom track bar and found out just a couple days before Easter Jeep Safari. Spence was a huge help and made it happen with plenty of time to spare. Their parts are top notch!
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