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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.
DT
Dean Tk421 Feb 21, 2026
Google
I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
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.
D
DSI Jul 26, 2025
Google
Great products with excellent customer service after the sale
RT
Ruby Timm Apr 27, 2025
Google
Bought a new 2019 Ram 1500. Had bad rear wheel hop since new, got all four core 4x4 control arms and it fixed the issue. Thanks
JT
jacob trice Apr 27, 2025
Google
Core 4x4 has outstanding products at a fair price and unmatched customer service. When you call Korby, it's like talking with a friend. Very cool and helpul! I ordered some custom control arms, but from the wrong product line and they were super cool about returning them and upgrading to a better "Crawl" series. Only charged the difference between the two products. They paid all the return shipping and sent the uprgaded arms super quick. It was only a couple days. Awesome!! I couldn't be happier with the transaction👍🏼 Also, these control arms are stout and take a beating. I run heck out my Jeep in the rocks and desert. No problems whatsoever. Thanks Core 4x4, ya'll are welcome at my campfire anytime! Jake T. Pleasant Hill, Or.
MG
Morgan Griffith Mar 25, 2018
Google
I met a couple of the Core 4x4 guys at the Salt Lake Offroad Expo and decided to try them out after noticing one of my control arm bushings was disintegrated. I called to discuss parts on Thursday and I was leaving for a trip on Saturday. These guys built my control arms and had them ready to be picked up Friday, 24 hours later. The parts seem to be great quality and they charged me nothing extra to have them painted. These guys were extremely helpful and without them my trip probably would have been cancelled. looking forward to testing out the arms on my next trip to Moab.
JC
John Cutler Oct 24, 2025
Google
In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
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