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1,994.95 1994.95 USD 1,994.95

1,994.95

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Jeep Wrangler JK / JKU 07-18 10pc Crawl Series Adjustable Control Arm, Track Bar Kit

SKU: CRL-J-JK-K10
Fits: 2007 - 2018 Jeep Wrangler JK / JKU Add vehicle

1,994.95 1994.95 USD 1,994.95

1,994.95

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

Take Your Jeep Wrangler JK’s Suspension to the Next Level

Upgrade your Jeep Wrangler JK’s suspension with the Crawl Series Complete Kit, designed for extreme off-road enthusiasts and daily drivers alike. This premium suspension upgrade combines eight adjustable control arms and front and rear track bars to deliver superior flexibility, durability, and articulation. Whether tackling technical trails or cruising on the highway, this kit offers unmatched control, comfort, and confidence for any driving condition.

What’s Included in the Kit?

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

Key Features and Benefits

  • Comprehensive Suspension Solution – This kit includes everything needed for a complete suspension overhaul, improving alignment, axle centering, and vehicle stability.
  • Heavy-Duty Construction – Built from DOM tubing with a 5/16” wall thickness, featuring 1.5” OD upper control arms and 1.75” OD lower control arms for exceptional strength and durability.
  • Johnny Joints for Maximum Articulation – Equipped with Johnny Joints at both ends of all control arms and track bars, delivering superior flexibility, articulation, and smooth ride quality.
  • Enhanced Adjustability for Lifted Vehicles – Fully adjustable for lifts from 0 to 6 inches, allowing precise alignment correction and optimized suspension geometry. Custom solutions available for lifts beyond 6 inches.

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 for rusted or stubborn bolts.

Upgrade Today!

Upgrade your Jeep Wrangler JK with the Crawl Series Complete Kit for the ultimate in suspension performance. Featuring heavy-duty materials, full adjustability, and Johnny Joints for maximum articulation, this kit is built to handle extreme off-road challenges while maintaining exceptional on-road comfort. Whether conquering trails or daily commutes, this kit ensures superior performance, durability, and control.


Make Model Submodel Years
Jeep Wrangler 2007 - 2018

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.
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.
MN
Mike Nielsen Nov 23, 2025
Google
The customer service is first class. I had an issue with a track bar I installed on my F350. I don’t have any other Core 4x4 parts yet, but with the way I was treated, I know their parts are well done, because they went above and beyond to make sure I was made whole. They wouldn’t be in business if they had to take care of a lot of people like they took care of me. Will definitely be back when it’s time to build the Jeep!
B
Ben Mar 24, 2021
Google
2001 Wrangler TJ- i have purchased all front/rear upper/lower control arms. Front track bar and rear track bar. Quality is excellent and extremely durable you can tell its built to last. Bent a bolt on the front track bar and called and spoke with Spence. He immediately sent me out new hardware plus some! Product is amazing but what really separates companies apart is their service and these guys are second to none. Thank you all!
CD
Christopher Dami Jun 26, 2025
Google
2022 I ordered a 2023 Jeep Wrangler Rubicon in High Velocity yellow. Without any hesitation I knew I was going with Core 4x4’s 16pc Camp series suspension, powder coated in yellow. Compliments were a given from any and everyone that looked under my jeep. So beefy, I may have left some yellow paint on the rocks from Maine to Florida, but no bends or breaks. Customer service has been perfect each and every time I have needed something. Their warranty is top notch! Their communication is also wonderful. Might upgrade to the Crawl Series control arms where the Johnny joints are on both sides. Great all around company and a great team to troubleshoot your issue and come to a conclusion. Nothing bad to say about this company. Just love this suspension.
RP
Robin Poole Jul 26, 2025
Google
I had several questions before my purchase and Korby helped me with the correct parts to order and recommendations. Outstanding customer service and product knowledge! Can't wait to install them!
JS
Jon Stempien May 27, 2025
Google
Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
RD
Reagan D'mello Dec 23, 2025
Google
Love the product. Excellent customer support 👍🏽 …
PB
Peter Busack May 27, 2025
Google
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
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