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Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Rear Upper Adjustable Control Arms

SKU: CRS-J-JL-RU2
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

251.95 251.95 USD 251.95

251.95

Starting at $110/mo or 0% APR with . See if you qualify

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

Correct Your Rear Pinion Angle Eliminate Driveline Vibrations

Lifting your Jeep Wrangler JL can create driveline vibrations and excessive wear due to improper pinion angle alignment. Our Cruise Series Rear Upper Control Arms solve this issue by allowing precise pinion angle adjustments, reducing strain on your drivetrain and eliminating unwanted vibrations. Whether you're navigating the trails or cruising on the highway, these arms provide a smoother ride, better alignment, and improved durability over factory components.

What’s Included in the Kit?

  • Pair of Cruise Series Rear Upper Control Arms (CRS-J-JL-RU2)

Key Features and Benefits

  • Corrects Pinion Angle to Reduce Driveline Vibrations – Prevents excessive strain on driveshafts and U-joints, reducing noise and increasing drivetrain longevity.
  • Heavy-Duty Steel Tubing Construction – Built for strength and durability, these arms withstand tough off-road conditions while improving on-road comfort.
  • Adjustability for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, ensuring proper pinion angle correction and precise alignment.
  • Tapered Polyurethane Bushings for a Smoother Ride – Reduces noise, absorbs vibrations, and improves articulation compared to factory rubber bushings.
  • Recommended Pairing for a Complete Rear-End Solution – For full alignment correction and rear axle centering, pair with our Cruise Series Rear Lower Control Arms (CRS-J-JL-RL2).

Two-Stage Powder Coating for Maximum Protection

Every control arm undergoes a two-stage powder coating process to protect against corrosion, rust, and road debris: Zinc Primer Base Coat – Provides a strong anti-corrosion barrier, ensuring durability in extreme conditions. Customizable Top Coat – Available in 10 different colors, allowing you to personalize your Jeep’s look while adding an extra layer of protection.

Made in the USA

Proudly manufactured in Orem, UT, we maintain full control over the production process to deliver top-tier quality and durability in every product.

Optional Hardware Upgrade

These control arms install using factory hardware, but if you're dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits for an easier and more secure installation.

In Conclusion

Upgrading to our Cruise Series Rear Upper Control Arms eliminates driveline vibrations, improves pinion angle alignment, and enhances both on-road comfort and off-road durability. Whether you're lifting your Jeep or fine-tuning your rear suspension, these control arms deliver long-lasting performance and drivetrain stability.

Upgrade today and drive with confidence, knowing your rear suspension is dialed in with CORE 4X4's Cruise Series Rear Upper Control Arms!


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.
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.
JS
Jeffrey Shafer Jan 22, 2026
Google
Exceptional customer service. All my questions were asked in a timely manner and parts were replaced when an error occured. I encourage people to make purchases due to their exceptional quality products, but also because of their customer service. Will make additional purchases in the future.
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!
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!
A
Aaron Mar 23, 2024
Google
I have recently come to know Core 4x4 when I purchased a Jeep XJ and was looking for a place that had dedicated XJ suspension and components. Here is what makes them different than most other shops. All of their components are top shelf quality and they back it up if you break any of it. I was able to see their shop when I picked up an order locally and was impressed with their attention to detail and how they assemble and powder coat each part. I had an issue with a shackle and needed the threaded shaft to be shorter. I called in and talked to Kaden and he told me to come by and they would shorten it for me. When I got there, Kaden and Spencer (the owner) met me and talked about options and proceeded to make the right adjustments to fit my XJ. Told me if anything changes in the future and I need additional length, they would take care of me. So what really sets them apart from others is their Customer Service. Try calling in to any other Jeep suspension or part shop and see how they treat you. Been there - done that. Will continue to do business with Core and their team. Getting that kind of service for just a shackle has me thinking I may need to replace my JT components with Core's. Thanks Guys for being helpful good humans!
AH
Abbey Hiett Mar 25, 2019
Google
Company finally made things right
OK
oleg k Nov 23, 2025
Google
I recently ordered a set of control arms from Core 4x4, and the entire experience was absolutely top-notch from start to finish. The ordering process was smooth, the parts arrived quickly, and the control arms themselves are extremely high quality—solid construction, great finish, and clearly built to last. I also want to give a special shout-out to Korby, the guy I spoke with during the process. His customer service was amazing. He went above and beyond to make sure I got exactly what I needed, answered all my questions, and made the whole experience stress-free. You don’t see service like that very often these days. If you’re looking for high-quality suspension components backed by truly exceptional customer service, I highly recommend Core 4x4. I’ll definitely be buying from them again.
BW
Brian Wadsworth Jun 26, 2025
Google
Amazing product! Shipping was quick, packaging was great and support was outstanding!!
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