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401.58 401.58 USD 472.45

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Jeep Gladiator JT 20+ 2pc Crawl Series Rear Upper Adjustable Control Arms

SKU: CRL-J-JT-RU2
Fits: 2020 - Present Jeep Gladiator JT Add vehicle

401.58 401.58 USD 472.45

472.45

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.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • 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

Superior Off-Road Performance

Take your Jeep Gladiator JT’s suspension to the next level with our Crawl Series Rear Upper Control Arms. Specifically designed for model years 2020-Present, these control arms are built to deliver exceptional off-road flexibility, improved axle control, and enhanced on-road comfort for an unparalleled driving experience.

What’s Included

  • Crawl Series Rear Upper Control Arms (CRL-J-JT-RU2)

Key Features and Benefits

  • Enhanced Off-Road Flexibility – Equipped with Johnny Joints at both ends, these control arms provide superior articulation, improving your vehicle's ability to tackle uneven terrain while maintaining road comfort.
  • Adjustability for Pinion and Axle Control – Designed to accommodate lifts from 0 to 6 inches, these control arms allow for precise pinion angle adjustments and help re-center your rear axle when paired with our adjustable lower control arms.
  • High-Strength Construction – Crafted from 1.75″ OD DOM Tubing with a 5/16” wall thickness, these control arms exceed industry standards for strength and durability, making them resilient in the harshest environments.
  • Optimized Rear-End Solution – For the most complete rear-end upgrade, pair these upper control arms with the Crawl Series Rear Lower Control Arms and Rear Track Bar to achieve optimal suspension geometry and stability.

Unmatched Adjustability for Rear-End Control

Our Crawl Series Rear Upper Control Arms provide unmatched control over your suspension setup. With left- and right-hand threading for easy adjustments while installed, these arms simplify the process of dialing in your rear axle's alignment and pinion angle. Whether you’re fine-tuning for a smoother ride or adjusting for off-road challenges, these control arms deliver precision and performance.

Two-Stage Powder Coating for Superior Protection

To ensure long-lasting durability and corrosion resistance, these control arms undergo a rigorous two-stage powder coating process. Zinc primer base coat – Provides advanced protection against rust and environmental elements. Durable top coat – Available in 10 custom color options to add a personalized finish that matches your Jeep’s style.

Made in the USA

Proudly manufactured in Orem, UT, our Crawl Series products reflect the highest standards of American craftsmanship. By sourcing materials locally and maintaining rigorous quality control, we ensure that each component offers reliable performance and long-term durability.

Optional Hardware Upgrade

Designed for straightforward installation with factory hardware, these control arms make upgrading your suspension system simple and efficient. Optional Grade 8 hardware kits are available separately for tackling rusted or stubborn bolts with ease.

In Conclusion

The Crawl Series Rear Upper Control Arms offer the ultimate combination of strength, adjustability, and off-road performance. Whether you’re conquering rocky trails or cruising highways, these control arms provide the reliability and precision you need for any adventure. For a complete rear-end solution, pair them with our Rear Lower Control Arms and Rear Track Bar. Upgrade today and experience superior handling and flexibility with Crawl Series.

 

Make Model Submodel Years
Jeep Gladiator 2020 - Present

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

Vehicle Jeep Gladiator JT (20–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 Crawl Series
Hardware No Hardware or Complete Kit
Lift Size 0" — 6" or 6"+

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.
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!
GC
Grant Chaisson Jun 26, 2025
Google
These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress. There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 . Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
RC
Robert C May 27, 2025
Google
Fantastic products! Outstanding performance!! Absolutely the best customer service!! You will not be disappointed!
AL
Aaron Lake Apr 27, 2025
Google
Korby was a great help with getting me a set of leaf springs for my Cherokee. Great customer service and an awesome product all made in the USA. Proud to support and rock their parts on my vehicle. 👍 …
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.
MB
Melody Baker Jan 22, 2026
Google
I ordered a part for my 03 Jeep TJ and all I can say is wow! Korby at Core 4x4 is a total rockstar!! There was a glitch with my payment and within minutes, Korby reached out to me to get it fixed, then sent my receipt with the tracking number. I lost the number and reached out to him during the Holidays and got a rapid response with the number again. I can’t say enough about the customer service and the quality of parts. Thank you!!
ZA
Zen Asher Mar 23, 2025
Google
The quality and durability of the arms are the best. They are super heavy duty. And lifetime warranty is crazy
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