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

SKU: CRS-J-JK-RU2
Fits: 2007 - 2018 Jeep Wrangler JK / JKU 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

Optimized Rear Suspension Control

Upgrade the stability, alignment, and suspension performance of your Jeep Wrangler JK with the Cruise Series Rear Upper Control Arms. Designed to enhance durability and improve ride quality, these control arms outperform stock components, offering better strength and adjustability for lifted vehicles. If you're experiencing driveline vibrations, poor pinion angles, or rear-end instability, these adjustable rear upper control arms provide a crucial upgrade to restore proper suspension geometry.

What’s Included in the Kit?

  • Cruise Series Rear Upper Control Arms (CRS-J-JK-RU2)

Key Features and Benefits

  • Heavy-Duty Steel Tubing Construction – Built from durable steel tubing to handle the toughest off-road conditions while maintaining on-road comfort.
  • Fully Adjustable for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, allowing precise pinion angle correction and rear axle re-centering.
  • Improves Drivability Reduces Wear – Helps address driveline vibrations, reducing stress on suspension components and extending tire life.
  • Tapered Polyurethane Bushings – Designed to provide smooth articulation, improved ride quality, and long-lasting performance.
  • Complete Rear-End Alignment Solution – For maximum control and proper geometry, pair with Cruise Series Rear Lower Control Arms (CRS-J-JK-RL2).

For lifts beyond 6 inches, contact us for custom solutions.

Durable Two-Stage Powder Coating

All control arms undergo a two-stage powder coating process to enhance longevity and corrosion resistance: Zinc primer base coat – Provides superior rust protection. Durable top coat – Available in 10 color options for added personalization.

Proudly Made in the USA

Manufactured in Orem, UT, the Cruise Series Rear Upper Control Arms are built to the highest American standards, ensuring quality, reliability, and performance.

Effortless Installation

Designed for bolt-on installation using factory hardware. If dealing with rusted or worn-out bolts, we offer optional Grade 8 hardware kits separately for a seamless upgrade.

In Conclusion

The Cruise Series Rear Upper Control Arms are a must-have upgrade for Jeep Wrangler JK owners looking to optimize rear axle alignment, eliminate driveline vibrations, and improve suspension articulation. When paired with Rear Lower Control Arms, this setup provides a fully adjustable rear suspension solution for lifted Jeeps.

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


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.
8
89Patriot Jan 22, 2026
Google
Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.
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
AM
Adam M Sep 24, 2025
Google
First time buying from Korby @ Core 4x4 and it’s being nothing short of a great experience. I bought the non adjustable Trail kit for my 5th Gen Ram 1500 with a 2” lift. The welds look great, nice powder coat finish and quality bushing. Had some trouble fitting the grease nipples due to the powder coating but a thread tap would fix that. They fit easily and perform great. I felt the improvement straight away. No more wheel hop on hard acceleration which was my main reason for the purchase. I was missing some smaller bushings needed for the 5th Gen and Korby’s custom service was on point, with responsive emails and mailing out the missing parts straight away. Very happy with their products and customer service. Highly recommended company👌🏽
JT
Jay Taylor May 27, 2025
Google
Had a worn out set of rear upper control arms on my TJ. These were old rubicon express long arms. can’t buy replacements and no one makes a direct fit replacement. Talked with Korby at core off road sent some measurements and photos and a week later new arms showed up. Packaging was perfect fit was perfect. Would highly recommend giving these guys a call.
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!
C
caleb Mar 24, 2022
Google
Absolutely a great company. Ordered rear lower control arms with hardware but when i got it the hardware wasn't there but they sent it out right away and got a free t-shirt! Highly recommend.
JJ
JT JT Dec 23, 2025
Google
We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.
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