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.
Ideal use:
Crawl Series is for aggressive rock crawling and hard use. Maximum strength and articulation for serious off-road enthusiasts.
Not sure which series fits your needs? Contact us for guidance.
- Alignment recommended after install.
- Install difficulty: moderate. Basic mechanical skills recommended.
- Estimated install time: 4–8 hours depending on experience.
- Some trimming may be required on factory axle mounts (front track bar). See our YouTube channel for guidance.
- Install videos and support available. Check product Description for links.
- Designed to reuse factory hardware. Upgrade available if yours is worn or missing.
| 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
Reviews from Google
Not Sure Which Tier? Compare All Three.
Same American steel. Same warranty. Same quality. Choose by how you use your vehicle.
| CRUISE | CAMP | CRAWL VIEWING | |
|---|---|---|---|
| Tagline | "Daily Confidence" | "Weekend Ready" | "Trail Domination" |
| Joint Type | Polyurethane Bushings | Johnny Joint (Single) | Double Johnny Joint |
| Articulation | ~30% | ~65% | ~95% |
| Tubing | 1.625" OD / 3/16" Wall DOM | 1.75" OD / 5/16" Wall DOM | 1.75" OD / 5/16" Wall DOM |
| Price | $214 | $312 | $449 |
| Maintenance | Zero | Periodic grease | Periodic grease |
| Best For | Daily driver, light trails | Weekend warrior, moderate off-road | Hardcore builder, competition |
| Warranty | Lifetime ✓ | Lifetime ✓ | Lifetime ✓ |
Why Builders Choose Core 4x4
The only aftermarket suspension brand with a tiered product system
vs. MetalCloak
One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.
vs. Teraflex
Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.
vs. Clayton / Budget
Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? Only Core 4x4.
Accessories & Add-ons
Jeep Gladiator JT 20+ 8pc Crawl Series Adjustable Control Arm Kit
$ 1,611.70
Jeep Gladiator JT 20+ 10pc Crawl Series Adjustable Control Arm, Track Bar Kit
$ 2,047.45
Jeep Gladiator JT 20+ 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit
$ 3,202.45
Jeep Gladiator JT 20+ 16pc Crawl Series Adjustable Control Arm, Track Bar, End Link Kit
$ 3,727.45
Jeep Gladiator JT 20+ 2pc Crawl Series Rear Lower Adjustable Control Arms
$ 498.70
Jeep Gladiator JT 20+ 4pc Crawl Series Rear Adjustable Control Arm Kit
$ 923.95
