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CORE 4X4 · Suspension SKU: CRL-J-JK-CS8

Jeep Wrangler JK / JKU 8pc Complete Kit

Adjustable control arms — front + rear, upper + lower · fits 0–6″+ lift

Jeep Wrangler JK / JKU 07-18 8pc Crawl Series Adjustable Control Arm Kit
$1,385.96 $1,574.95 Save $189

CRUISE from $785 · CAMP $1,118 · Compare series

$ 1,385.96 1385.96 USD $ 1,574.95

$ 1,574.95

Save $ 188.99

Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
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COLOR Pick yours
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Mounting hardware included
Talk to an Expert: 385-375-2104
Lift Size
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CORE 4X4 · Suspension

Jeep Wrangler JK / JKU 8pc Complete Kit

Jeep Wrangler JK / JKU 07-18 8pc Crawl Series Adjustable Control Arm Kit

Adjustable control arms — front + rear, upper + lower · fits 0–6″+ lift

Will this fit your rig?

COLOR Pick yours

Build Your Kit

  • Vehicle
  • Brand
  • Color
  • Series
  • Hardware
  • Lift Size
  • Note to Core4x4:

$ 1,385.96 1385.96 USD $ 1,574.95

$ 1,574.95

Save $ 188.99

Select Color to see price and add to cart.

Mounting hardware included
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Talk to an Expert: 385-375-2104
Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Core 4x4 Manufactured Social 15 Promo Eligible

Alignment recommended You break it, we replace it. Made In USA

Made in USA Orem, Utah
You break it, we replace it Warranty on non-wear items
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Product Details

Make Model Submodel Years
Jeep Wrangler 2007–2018

  • Vehicle Fitment: Jeep Wrangler JK 07-18 – The ultimate control arm upgrade for serious off-roaders, providing extreme articulation, axle stability, and unmatched strength for lifted and high-performance builds.

  • CORE Advantage: A game-changing suspension upgrade, delivering insane articulation, superior axle re-centering, and drastically improved handling, far surpassing stock and other aftermarket options.

  • Adjustability: Fully adjustable from 0 to 6 inches of lift, allowing precise pinion angle tuning, caster correction, and optimized suspension geometry to maximize control and minimize driveline stress.

  • Construction: Built from massive 5/16” wall DOM tubing, with 1.75” OD lower and 1.5” OD upper control arms, featuring premium Johnny Joints at both ends for extreme durability, flex, and vibration absorption.

  • 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. You break it, we replace it.

Built With

Front Lower Control Arm Built With 1.75” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Front Upper Control Arm Built With 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joint on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Rear Lower Control Arm Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Rear Upper Control Arm Built With 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14 TPI - 2.32” long threads.

Johnny Joints both endsJoints
1.75" OD lowers / 1.50" OD uppersTubing
5/16" DOMWall
Periodic greasingMaintenance

Construction & Materials

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Lower Adjustable Control Arms

Front Lower control arm built with 1.75” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Upper Adjustable Control Arms

Front Upper control arm built with 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Rear Lower Adjustable Control Arms

Rear Lowers built with Forged Johnny Joints on the adjustable end and a Welded Johnny Joints on the fixed end with 1.25” x 12 TPI - 2.625” long threads.

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Rear Upper Adjustable Control Arms

Rear Upper control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

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.
Series Crawl Series
Hardware No Hardware or Complete Kit
Lift Size 0" — 6" or 6"+
Placement on Vehicle Front Upper, Front Lower, Rear Upper, Rear Lower, Front, Rear
Mounting Style Bolt-On

Ultimate Off-Road Performance

Upgrade your Jeep Wrangler JK with the Crawl Series Complete Set of Control Arms, the ultimate solution for superior off-road flexibility and on-road comfort. Engineered for strength, durability, and precision, this comprehensive kit surpasses all other aftermarket options, delivering unmatched performance and reliability for your off-road adventures.

Key Features and Benefits

  • Engineered construction – Lower control arms are made with 1.75” OD DOM tubing and 5/16” wall thickness for maximum durability, while upper control arms are constructed with 1.5” OD DOM tubing and 5/16” wall thickness for optimal strength.
  • Johnny Joints for extreme flexibility – Equipped with Johnny Joints at both ends, these control arms provide exceptional articulation and longevity. The front upper control arms feature a U-bracket at the axle end, seamlessly integrating with the factory-installed bushing.
  • Enhanced adjustability – Designed for effortless adjustability, accommodating lifts from 0 to 6 inches, allowing for precise alignment correction, front and rear axle re-centering, and pinion angle optimization to reduce driveline vibrations.
  • Recommended pairing – When used as a complete set, the synchronization of all 8 control arms maximizes performance and ensures your suspension is dialed in for any terrain.

Two-Stage Powder Coating for Durability

Each control arm undergoes a meticulous two-stage powder coating process. A zinc primer base provides superior corrosion resistance, while the durable top coat, available in 10 custom color options, adds extra protection and style. This process ensures long-lasting durability, even in the most demanding environments.

Proudly Made in the USA

The Crawl Series reflects the highest standards of American manufacturing. Produced in our Orem, UT facility, every component undergoes rigorous quality control, from sourcing local materials to final assembly. By choosing the Crawl Series, you support American craftsmanship while receiving a product engineered to excel.

Final Thoughts

The Crawl Series Complete Control Arm Set is the ultimate suspension upgrade for Jeep Wrangler JK owners looking for maximum durability, articulation, and adjustability. Whether you're navigating rocky trails or cruising on the highway, this kit delivers unmatched performance and handling. Upgrade today and take full control of your Jeep’s suspension!

 

Each rebuild kit includes all necessary components to replace and restore wearable parts.

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, and any add-on options, then add to cart — you’ll confirm your lift height at checkout. 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.

Google

Store reviews on Google

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5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
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!
TW
Travis Walker Sep 24, 2025
★ ★ ★ ★ ★ Google
I have nothing but great things to say about this company and their customer service. If you like American made products backed by warranty and amazing customer support, this is the company for you. I have a Lexus GX470 and love their rear control arms.
Review photo 1 Review photo 2
ST
Sal Torres May 27, 2025
★ ★ ★ ★ ★ Google
upper control arms look great and went on easy.. only reason I gave 4 stars and not 5 is because of a shipping issue which put my build a week behind. The issue was resolved quickly and painlessly, great customer service. Only time will tell how control arms perform but they look great and like they will go above and beyond control arm demand.
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.
EL
Eric Labrum May 27, 2025
★ ★ ★ ★ ★ Google
Best customer service I have ever experienced. They are my go to source do to quality and service
JF
jacob fezza Mar 24, 2022
★ ★ ★ ★ ★ Google
I wanted to take a moment and give these guys a shout out, I’ve currently got, for my xj, their adjustable control arms, tier 4 adjustable track bar and adjustable leaf spring shackles. You can always count on a fair price, high quality products, and quick delivery. Keep up the great work guys, will definitely continue to shop with you
MB
Melody Baker Jan 22, 2026
★ ★ ★ ★ ★ Google
I ordered a part for my 03 Jeep TJ and all I can say is wow! Korby at Core 4x4 is a total rockstar!! There was a glitch with my payment and within minutes, Korby reached out to me to get it fixed, then sent my receipt with the tracking number. I lost the number and reached out to him during the Holidays and got a rapid response with the number again. I can’t say enough about the customer service and the quality of parts. Thank you!!
BW
Brian Wadsworth Jun 26, 2025
★ ★ ★ ★ ★ Google
Amazing product! Shipping was quick, packaging was great and support was outstanding!!
RT
Ruby Timm Apr 27, 2025
★ ★ ★ ★ ★ Google
Bought a new 2019 Ram 1500. Had bad rear wheel hop since new, got all four core 4x4 control arms and it fixed the issue. Thanks
NM
Noah Myers Mar 23, 2024
★ ★ ★ ★ ★ Google
I contacted these guys on a Saturday through email and needed some control arms by the following weekend, Spence got back with me and told me he would make sure the order got shipped out on Monday, they got busy and wasn’t able to ship the package out so he got back with me that evening and upgraded my shipping for free and shipped out the next day, only because he told me he’d make sure I’d have them by the weekend! This company sticks to their word! The customer service from these guys are unmatched and they will have another lifetime customer here!
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Made in Orem, UT · You break it, we replace it.
385-375-2104