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Jeep Wrangler JK / JKU 07-18 4pc Cruise Series Rear Adjustable Control Arm Kit

SKU: CRS-J-JK-RS4
Fits: 2007 - 2018 Jeep Wrangler JK / JKU Add vehicle

472.45 472.45 USD 472.45

472.45

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.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • 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

Upgrade Your Rear Suspension for Maximum Performance

Enhance your Jeep Wrangler JK's handling, durability, and ride quality with the Cruise Series Rear Control Arm Set. Designed to provide a significant improvement over factory parts, this set includes both rear upper and rear lower control arms to optimize axle alignment, improve suspension geometry, and reduce unnecessary wear on suspension components.

Whether you're tackling off-road trails or enjoying a smooth highway ride, these control arms offer unmatched strength and flexibility.

What’s Included in the Kit?

  • Pair of Cruise Series Rear Upper Control Arms (CRS-J-JK-RU2)
  • Pair of Cruise Series Rear Lower Control Arms (CRS-J-JK-RL2)

Key Features and Benefits

  • Heavy-Duty Steel Tubing Construction – Provides superior strength and durability compared to factory control arms.
  • Tapered Polyurethane Bushings – Reduces road noise, enhances responsiveness, and improves ride quality over standard rubber bushings.
  • Corrects Pinion Angle Re-centers Rear Axle – Adjustability allows for pinion angle correction, eliminating driveline vibrations and ensuring proper suspension geometry.
  • Adjustable for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, ensuring proper alignment and handling for various lift setups.
  • Complete Rear-End Suspension Solution – When paired with our Cruise Series Front Control Arm Set (CRS-J-JK-FS4), this kit provides full suspension adjustability, improving drivability, eliminating wandering, and correcting alignment issues. For lifts beyond 6 inches, contact us for custom solutions.

Durable Two-Stage Powder Coating

Our control arms undergo a two-stage powder coating process to maximize corrosion resistance and durability: Zinc primer base coat – Protects against rust and harsh environmental conditions. Durable top coat – Available in 10 color options to personalize your suspension components.

Proudly Made in the USA

Manufactured in Orem, UT, the Cruise Series Rear Control Arm Set is built to the highest American standards, ensuring quality, reliability, and performance.

Effortless Installation

  • Designed for easy bolt-on installation, this control arm set uses factory hardware.
  • If dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits separately for a hassle-free setup.

In Conclusion

The Cruise Series Rear Control Arm Set is the ultimate upgrade for Jeep Wrangler JK owners looking to correct alignment issues, improve handling, and increase suspension durability.

When paired with our Front Control Arm Set, this complete solution eliminates wandering, restores proper suspension geometry, and enhances both on-road and off-road performance.

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


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.
Hardware No Hardware or Complete Kit
Series Cruise Series

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.
K
Korosunagi Jul 26, 2025
Google
I broke a grease fitting off in my end link. I thought I was going to have to buy a new one. Reached out to Core 4x4 and wham! bam! They fixed it and sent it back with 2 day shipping. Got it a day early even. If they couldn't fix it they were going to send me a new one. Now that's customer service! They are now a permanent part of my garage. Thank you Core 4x4!
WT
William Turton Nov 23, 2025
Google
Finally a company with a great product and customer service to match. I changed my order last minute from short arms to long arms. The lift is extremely well built. Korbey was awesome! Highly recommend Core 4x4
AP
Ajay Paynter Mar 9, 2026
Google
Great company, who worked with me on shipping parts, to arrive in time for a show, when I explained my concern of possibly not getting the control arms in time. Quality is amazing on the part, affordable price for what you get, and the powdercoat is top notch, not a single issue with this product, would buy again.
EL
Eric Labrum May 27, 2025
Google
Best customer service I have ever experienced. They are my go to source do to quality and service
C
Chris Oct 24, 2025
Google
Great product for a good price. Customer service is top notch, I had an issue which was self cause and Core 4x4 helped me out even though it was my own fault. Would definitely recommend and use them again.
JF
jacob fezza Mar 24, 2022
Google
I wanted to take a moment and give these guys a shout out, I’ve currently got, for my xj, their adjustable control arms, tier 4 adjustable track bar and adjustable leaf spring shackles. You can always count on a fair price, high quality products, and quick delivery. Keep up the great work guys, will definitely continue to shop with you
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
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