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3,042.33 3042.33 USD 3,202.45

3,202.45

1–3 day build time + Shipping

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Jeep Wrangler JL / JLU 18+ 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit

SKU: CRL-J-JL-K12
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

3,042.33 3042.33 USD 3,202.45

3,202.45

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.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • 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.
  • Drag Link Orientation
    Select flipped drag link only if your steering has already been converted to over-the-knuckle.
  • Stabilizer Clamp
    Match your steering stabilizer mounting style. Standard clamp, hydraulic assist, or tie rod clamp.
  • 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

Experience Unmatched Control with Total Suspension and Steering Solutions

Elevate your Jeep Wrangler JL’s performance with the Crawl Series Complete Kit With Steering. This comprehensive upgrade offers unparalleled stability, durability, and articulation, combining complete suspension control with a heavy-duty 2.5-ton aluminum steering system. Designed to conquer the toughest trails while maintaining excellent on-road drivability, this kit delivers unmatched precision and reliability for lifted Jeeps.

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)
  • 2.5-Ton Heavy-Duty Aluminum Steering Kit (ST-J-JL-SK2)

Key Features and Benefits

  • Enhanced suspension geometry – Keeps axles centered, corrects pinion and caster angles, and eliminates issues like crab walking for a smoother and more controlled ride.
  • Unparalleled steering strength – The 2.5-ton aluminum steering kit, made from 2-inch 7075 aluminum, provides extreme durability with a memory feature that allows it to flex and return to its original shape after impacts.
  • Maximum off-road articulation – Johnny Joints at both ends of all control arms and track bars provide superior flexibility, ensuring bind-free movement on tough terrain without compromising strength.
  • Fully adjustable for precision tuning – Supports suspension lifts from 0 to 6 inches, allowing for fine-tuned alignment, axle re-centering, and optimized suspension geometry. Custom solutions are available for larger lifts.

Durable Two-Stage Powder Coating

Each component undergoes a zinc primer base coat for corrosion resistance, followed by a top coat available in 10 colors for a personalized look.

Optional Hardware Upgrade

Designed for straightforward installation using factory hardware, with optional Grade 8 hardware kits available separately for rusted or stubborn bolts.

Upgrade Today!

The Crawl Series Complete Kit With Steering is the ultimate upgrade for Jeep Wrangler JL owners looking to achieve perfect suspension geometry and unparalleled steering control. Combining eight adjustable control arms, front and rear track bars, and a heavy-duty aluminum steering kit, this American-made package ensures your vehicle is ready for any terrain. Invest in the Crawl Series today for superior performance, durability, and off-road articulation!


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 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.
Series Crawl Series
Lift Size 0" — 6" or 6"+
Hardware No Hardware or Complete Kit
Drag Link Orientation Factory Mounting (under the knuckle) or Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle)
Stabilizer Clamp Standard Clamp or Hydraulic Assist Clamp

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
Google

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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