Superior Off-Road Performance and Flexibility
Take your Jeep Wrangler JL’s rear suspension to the next level with the Crawl Series Rear Lower Control Arms. Specifically engineered for off-road enthusiasts, these control arms provide superior articulation, durability, and adjustability. Whether you’re tackling rugged trails or cruising the highway, these control arms offer the strength and performance to handle it all while maintaining excellent on-road comfort.
Key Features and Benefits
- Built to Withstand Extreme Conditions – Constructed from heavy-duty 1.75” OD DOM Tubing with a robust 5/16” wall thickness, these control arms are designed to handle the harshest off-road conditions while delivering unmatched strength and reliability.
- Unmatched Articulation – Equipped with RockJock Johnny Joints at both ends, these control arms provide incredible off-road articulation, ensuring smoother suspension movement over uneven terrain.
- Full Adjustability – Easily fine-tune your suspension setup to accommodate lifts from 0 to 6 inches. These control arms allow precise wheel centering and axle alignment, giving you optimal performance no matter your setup.
- Complete Rear-End Solution – For a fully dialed-in rear suspension, pair these lower control arms with our Crawl Series Rear Upper Control Arms. Together, they enable full axle centering in the wheel well and perfect pinion angle adjustment, minimizing driveline vibrations and maximizing drivability.
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 designed and manufactured in Orem, UT, the Crawl Series Rear Lower Control Arms reflect CORE 4X4’s commitment to American craftsmanship. By managing the production process in-house, we ensure top-tier quality and support for local industries.
Straightforward Installation
These control arms are designed for a simple installation process using factory hardware. For vehicles with rusted or stubborn bolts, optional Grade 8 hardware kits are available separately to make the process smooth and hassle-free.
Vehicle Fitment: Jeep Wrangler JL 18+ – Enhances rear suspension strength, articulation, and handling for off-road and daily driving.
CORE Advantage: Johnny Joints at both ends provide extreme articulation, allowing smoother suspension movement and improved traction on rough terrain.
Adjustability: Fully adjustable for 0–6” lifts, allowing precise wheel centering, axle alignment, and optimized pinion angle to reduce drivetrain vibrations.
Construction: Built from 1.75” OD DOM tubing with a 5/16” wall, engineered for maximum strength, durability, and off-road performance.
Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.
Warranty and Origin: Proudly manufactured in the United States, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.
Built With
Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. Forded Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2018 - Present |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Construction & Materials
Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. Forded Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.
| Vehicle | Jeep Wrangler JL / JLU (18–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"+ |
| Placement on Vehicle | Rear Lower, Rear |
| Mounting Style | Bolt-On |
Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.
Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.
You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.
Reviews of Core 4x4
Accessories & Add-ons
Jeep Wrangler JL / JLU 18+ 8pc Crawl Series Adjustable Control Arm Kit
$ 1,585.45
Jeep Wrangler JL / JLU 18+ 10pc Crawl Series Adjustable Control Arm, Track Bar Kit
$ 2,047.45
Jeep Wrangler JL / JLU 18+ 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit
$ 3,202.45
Jeep Wrangler JL / JLU 18+ 16pc Crawl Series Adjustable Control Arm, Track Bar, Steering, End Link Kit
$ 3,727.45
Jeep Wrangler JL / JLU 18+ 4pc Crawl Series Rear Adjustable Control Arm Kit
$ 897.70
Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Rear Upper Adjustable Control Arms
$ 461.95Specifications
| Color | Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed. |
| Hardware | No Hardware, Complete Kit |
| Lift Size | 0" — 6", 6"+ |
| Vehicle | Jeep Wrangler JL / JLU (18–Present) |
| Brand | CORE 4X4 |
| Series | Crawl Series |
| Note to Core4x4: | - |
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