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1,740.33 1740.33 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

1,740.33 1740.33 USD 2,047.45

2,047.45

Starting at $110/mo or 0% APR with . See if you qualify

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
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
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.
MP
Mirko Pompili Mar 19, 2026
Google
I want to share a truly positive experience. I ordered a car kit consisting of two packages, but unfortunately one was lost during shipping with UPS. The situation could have become complicated... but it didn't. The company manager was extremely helpful and professional: he personally followed up on the situation and did everything he could to resolve the issue, even sending me the package again without hesitation. It's rare to find such attentive and reliable customer service these days. My sincere congratulations on your professionalism and commitment: that makes all the difference.
CM
Cameron Masters Mar 24, 2023
Google
Absolutely incredible family owned business. I asked to pick up my order since I’m local and they came in on a weekend to accommodate. Had to make some adjustments to parts and took the time to make sure it was perfect. Parts are incredible quality. If you have a Jeep, do not hesitate to support this local business.
D
David Nov 23, 2025
Google
First of I just want to say Great customer service korby Has helped me from the start and has not let me down! Reached out to him again today and he was able to warranty some parts out for me. As far as the quality of the parts.. excellent! The build quality is great. I can definitely tell a Difference from the cheap oem rear control arms to these and the pan hard bar. Color, From what I can tell it’s super durable been through a few mud holes on top of the daily road grime and after a quick wipe they still pop! Overall I recommend. Customer service is everything for me and it’s definitely there at Core 4x4.
CL
Cade Leith Mar 23, 2024
Google
Have full upper/lower CA set on both front and rear axles on a 96 ZJ. These are the rubber bushing sets not joint sets. I have beat the hell out it in the Nevada desert for 2 years and has been great. I don’t go fast but I do articulate suspension a lot. Super solid and haven’t any issues. Just inspected the entire set recently due to some banging under it. Turns out the banging is lower rear shock bushings. Inspected each CA along the way nothing. Aside from dirt and obviously winter roads and what not still in excellent condition, bushings are solid like the day they were installed. I’ll add that I’m about tapped on a short arm at 4.25(less with settle) so the front CA’s get beat on just from that, still they’re like new. Paint is great condition, this set is red. I would definitely buy again. Another plus for me, Utah isn’t local necessarily, but it’s nice to support businesses closer to me.
OA
Owen Adams Sep 24, 2025
Google
These guys are awesome I messed up my address on my order somehow and they were so so helpful Korby was right there every step to a solution very communicative and respectful I will definitely be ordering parts with them in the future!
SH
Shawn Hooten Apr 27, 2025
Google
Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
C
Chris Oct 24, 2025
Google
Great product for a good price. Customer service is top notch, I had an issue which was self cause and Core 4x4 helped me out even though it was my own fault. Would definitely recommend and use them again.
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