Superior Off-Road Performance Adjustability
Upgrade your Jeep Wrangler TJ/LJ (1997-2006) with the Crawl Series Rear Upper Control Arms, engineered to provide exceptional articulation, precise alignment, and long-lasting durability. Whether you're navigating rugged off-road trails or cruising on paved roads, these control arms ensure improved stability, ride quality, and axle centering.
What’s Included
- Crawl Series Rear Upper Control Arms (CRL-J-TJLJ-RU2)
Key Features Benefits
- Extreme Off-Road Articulation – Featuring Johnny Joints at both ends, these control arms allow for unparalleled flexibility, delivering smoother suspension movement and increased durability over rough terrain.
- Optional Double Adjustable Upgrade – Built with left- and right-hand threaded adjusters, these control arms allow for on-the-vehicle pinion angle adjustments, helping fine-tune alignment, recenter the rear axle, and optimize suspension geometry for lifts from 0 to 6 inches.
- Heavy-Duty Construction – Crafted from 1.5" OD DOM Tubing with a 5/16” wall thickness, these arms outperform factory and competitor options with enhanced strength and longevity.
- Pair with Rear Lower Control Arms for Complete Control – For a fully optimized rear suspension system, pair these Rear Upper Control Arms with our Crawl Series Rear Lower Control Arms to achieve complete axle centering, enhanced pinion angle adjustment, and superior handling.
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 Rear Upper Control Arms are built with precision and high manufacturing standards. By choosing our products, you’re investing in American-made quality, superior craftsmanship, and long-term reliability.
Optional Hardware Upgrade
Designed for bolt-on installation using factory hardware, these control arms offer a straightforward upgrade. For those dealing with rusted or worn-out bolts, we offer optional Grade 8 hardware kits, available separately for a hassle-free installation.
In Conclusion
The Crawl Series Rear Upper Control Arms are a must-have upgrade for Jeep Wrangler TJ/LJ owners looking for superior off-road articulation, improved alignment correction, and long-lasting durability. Whether you're tackling technical rock trails or fine-tuning your Jeep's suspension setup, these control arms provide the adjustability and strength needed for optimal performance. Upgrade today and experience the best in off-road suspension control!
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 | Wrangler | 1997 - 2006 | |
| Jeep | Wrangler | 2004 - 2006 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
| Vehicle | Jeep Wrangler TJ (97–06) or Jeep Wrangler LJ (04–06) |
| 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"+ |
| Adjustment Type | Single Threaded or Double Threaded |
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 | $147 | $283 | $414 |
| 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 Wrangler TJ 97-06 LJ 04-06 8pc Crawl Series Adjustable Control Arm Kit
$ 1,496.20
Jeep Wrangler TJ 97-06 LJ 04-06 10pc Crawl Series Adjustable Control Arm, Track Bar Kit
$ 1,942.45
Jeep Wrangler TJ 97-06 LJ 04-06 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit
$ 2,572.45
Jeep Wrangler TJ 97-06 LJ 04-06 2pc Crawl Series Rear Lower Adjustable Control Arms
$ 467.20
Jeep Wrangler TJ 97-06 LJ 04-06 4pc Crawl Series Rear Adjustable Control Arm Kit
$ 855.70
