Achieve Superior Off-Road Performance
Enhance your Jeep Wrangler JK’s off-road capabilities with the Crawl Series Rear Upper Control Arms (CRL-J-JK-RU2). Designed for Jeep JK models (2007-2018), these control arms deliver unmatched flexibility, improved alignment, and exceptional durability. Whether tackling rugged terrain or cruising city streets, they provide the strength and adjustability needed for optimal performance.
What's Included in the Kit
- Crawl Series Rear Upper Control Arms (CRL-J-JK-RU2)
Key Features and Benefits
- High-Strength Construction – Crafted from 1.5" OD DOM Tubing with a 5/16” wall thickness, these control arms deliver superior durability and outperform competitor offerings.
- Johnny Joints for Maximum Articulation – Featuring original Johnny Joints at both ends, these control arms provide unmatched flexibility and smooth operation for extreme off-road performance and on-road comfort.
- Adjustability for Lifts – Fully adjustable to accommodate lift heights from 0 to 6 inches, allowing precise alignment corrections, pinion angle adjustments, and axle re-centering. Custom solutions are available for lifts exceeding 6 inches.
- Seamless Suspension Integration – Designed to work seamlessly with other Crawl Series components, these control arms enhance overall suspension harmony and drivability, providing consistent and reliable performance in all conditions.
Two-Stage Powder Coating
Each control arm undergoes a rigorous two-stage powder coating process for enhanced durability and corrosion resistance. Zinc primer base protects against rust. Topcoat available in 10 customizable colors offers a durable, stylish finish that complements your Jeep’s look.
Made in the USA
Proudly designed and manufactured in Orem, UT, the Crawl Series Rear Upper Control Arms exemplify the best in American craftsmanship. By choosing CORE 4X4, you support local industries while investing in premium-quality components that meet the highest performance standards.
Optional Hardware Upgrade
Installing the Crawl Series Rear Upper Control Arms is a straightforward process using your Jeep’s factory hardware. Optional Grade 8 hardware kits are available separately for vehicles with rusted or stubborn bolts, ensuring a hassle-free setup.
In Conclusion
Upgrade your Jeep Wrangler JK with the Crawl Series Rear Upper Control Arms (CRL-J-JK-RU2) for unmatched off-road flexibility, precise alignment, and durable performance. Designed for Jeep enthusiasts who demand the best, these control arms deliver consistent results on every trail and road. Invest in quality, reliability, and the ultimate driving experience today.
| 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. |
| Series | Crawl Series |
| Hardware | No Hardware or Complete Kit |
| Lift Size | 0" — 6" or 6"+ |
Select your lift size in Step 1 — the kit ships with the correct geometry for that height. If you're running a non-standard setup, call us before ordering and we'll confirm compatibility.
Death wobble is a geometry problem, not just worn parts. Cruise Series corrects caster angle and eliminates the flex points that let shimmy start. Replacing one part at a time delays the fix — this replaces the geometry.
Yes, if you've done a lift kit before. Full-day project. Watch the complete JT install walkthrough on our YouTube channel — most owners wrap it in a day. Any off-road shop can run it if you'd rather have it done.
Any non-wear component fails — we replace it. No mileage cap. No maintenance intervals to track. No fine print about voiding if you miss a service. Lifetime means lifetime.
Teraflex's lifetime warranty voids if you miss a maintenance interval. MetalCloak's actual parts warranty is 12 months — their "lifetime" language refers to their service program. No conditions here.
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
Reviews from Google
Accessories & Add-ons
Jeep Wrangler JK / JKU 07-18 8pc Crawl Series Adjustable Control Arm Kit
$ 1,574.95
Jeep Wrangler JK / JKU 07-18 10pc Crawl Series Adjustable Control Arm, Track Bar Kit
$ 1,994.95
Jeep Wrangler JK / JKU 07-18 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit
$ 3,097.45
Jeep Wrangler JK / JKU 07-18 16pc Crawl Series Adjustable Control Arm, Track Bar, Steering, End Link Kit
$ 3,622.45
Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Rear Lower Adjustable Control Arms
$ 482.95
Jeep Wrangler JK / JKU 07-18 4pc Crawl Series Rear Adjustable Control Arm Kit
$ 897.70