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1,945.08 1945.08 USD 2,047.45

2,047.45

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Jeep Wrangler JL / JLU 18+ 10pc Crawl Series Adjustable Control Arm, Track Bar Kit

SKU: CRL-J-JL-K10
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

1,945.08 1945.08 USD 2,047.45

2,047.45

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.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • 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

Achieve Perfect Suspension Geometry and Unmatched Off-Road Performance

Transform your Jeep Wrangler JL’s suspension with the Crawl Series Total Control Kit (CRL-J-JL-K10). Designed to provide complete control over your vehicle's axle and suspension, this comprehensive kit ensures proper alignment, axle centering, and superior articulation for both on-road and off-road applications. With 8 adjustable control arms and front and rear track bars, this kit is the ultimate solution for maximizing performance and handling.

What's Included in the Kit

  • Crawl Series Front Upper Control Arms (CRL-J-JL-FU2)
  • Crawl Series Front Lower Control Arms (CRL-J-JL-FL2)
  • Crawl Series Rear Upper Control Arms (CRL-J-JL-RU2)
  • Crawl Series Rear Lower Control Arms (CRL-J-JL-RL2)
  • Crawl Series Front Track Bar (CRL-J-JL-FTB1)
  • Crawl Series Rear Track Bar (CRL-J-JL-RTB1)

Key Features and Benefits

  • Ensures Proper Axle Alignment: Maintains precise suspension geometry by centering the axle in the wheel well, correcting pinion and caster angles, and ensuring alignment left to right, preventing issues like crab walking.
  • Unmatched Off-Road Articulation: Featuring Johnny Joints at both ends of all control arms and track bars, this kit allows for exceptional flexibility and articulation on challenging trails without compromising durability.
  • Tailored for Suspension Lifts: Fully adjustable to accommodate lifts from 0 to 6 inches, the control arms and track bars enable fine-tuning of alignment, axle re-centering, and optimal suspension geometry. For lifts over 6 inches, additional solutions are available upon request.
  • Heavy-Duty Construction: Built from 1.75” OD DOM Tubing for lower control arms and 1.5” OD DOM Tubing for upper control arms and track bars, all components feature a 5/16” wall thickness for incredible strength and durability under extreme conditions.

Two-Stage Powder Coating

Every component in the Crawl Series Total Control Kit undergoes a rigorous two-stage powder coating process for maximum protection against the elements. The zinc primer base resists corrosion, while the durable topcoat—available in 10 customizable colors—adds an additional layer of defense and personalization.

Made in the USA

Proudly manufactured in Orem, UT, the Crawl Series Total Control Kit reflects CORE 4X4’s dedication to American craftsmanship. By managing production in-house, we deliver premium-quality products while supporting local industries and maintaining competitive pricing.

Optional Hardware Upgrade

Designed for straightforward installation, the kit uses factory hardware. Optional Grade 8 hardware kits are available separately for vehicles with rusted or stubborn bolts, ensuring a hassle-free upgrade process.

In Conclusion

The Crawl Series Total Control Kit (CRL-J-JL-K10) provides everything you need for a complete suspension overhaul. With precise axle alignment, improved caster and pinion angles, and exceptional off-road articulation, this kit transforms your Jeep Wrangler JL into a well-balanced, high-performing machine. Whether you’re conquering extreme trails or navigating daily commutes, experience the ultimate in control, durability, and performance with this American-made suspension upgrade.


Make Model Submodel Years
Jeep Wrangler 2018 - Present

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.
Lift Size 0" — 6" or 6"+
Hardware No Hardware or Complete Kit
Series Crawl Series

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
4.8
5 reviews
5
80%
4
20%
3
0%
2
0%
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.
DW
Derek Whitfield Nov 20, 2025
Google
Solid product, the lifetime warranty sealed the deal for me. Installed on my TJ and the ride quality improved noticeably. Shipping took a bit longer than expected but the parts were worth the wait.
JM
Jason Mitchell Dec 8, 2025
Google
Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
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