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2pc Crawl Series Front Upper Adjustable Control Arms

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Upper Adjustable Control Arms
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263.25 263.25 USD 309.70

309.70

(Save 15%)

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Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
https://dev.core4x4.com/web/image/product.template/2154/image_1920?unique=edc8f61

2pc Crawl Series Front Upper Adjustable Control Arms

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Upper Adjustable Control Arms
SKU: CRL-J-JK-FU2
Pick your vehicle to confirm fit

263.25 263.25 USD 309.70

309.70

(Save 15%)

COLOR 11 colors
Black Blue Charcoal Green LightGreen Orange Purple Red White Yellow Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Compare all tiers →

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.
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline

Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Crawl Series Front Upper Control Arms (CRL-J-JK-FU2) for Jeep Wrangler JK (2007-2018)

Enhance your Jeep Wrangler JK's performance with the Crawl Series Front Upper Control Arms (CRL-J-JK-FU2). Designed to deliver unparalleled off-road flexibility and precise on-road handling, these control arms are a must-have upgrade for serious Jeep enthusiasts. Whether you're tackling rugged trails or cruising the highway, this component provides the adjustability, durability, and reliability your vehicle demands.

Key Features and Benefits

  • Premium Construction: Made from 1.5" OD DOM Tubing with a robust 5/16” wall thickness, these control arms are built to withstand extreme conditions.
  • Original Johnny Joints: Features Johnny Joints from Rock Jock 4x4 at the adjusting end for smooth articulation and superior durability.
  • Adjustability for Lifts: Fully adjustable to accommodate lift heights from 0 to 6 inches, allowing for precise alignment and front axle re-centering. For lifts exceeding 6 inches, additional options are available upon request.
  • Improved Handling: Enhances vehicle stability and off-road performance while maintaining reliable on-road manners.
  • Upgrade Potential: Pairs seamlessly with our Front Lower Control Arms for a complete front-end upgrade, improving overall suspension performance and durability.

Two-Stage Powder Coating

All Crawl Series Control Arms undergo a two-stage powder coating process for superior durability and corrosion resistance. A zinc primer base coat provides a strong foundation, followed by a tough topcoat available in 10 color options to match your style while protecting your components.

Made in the USA

Proudly designed and manufactured in the United States, these control arms are crafted with precision and quality that meet the highest standards of American manufacturing. When you choose the Crawl Series, you’re supporting local craftsmanship and benefiting from reliable engineering.

Optional Hardware Upgrade

The Crawl Series Front Upper Control Arms are designed for straightforward installation using factory hardware. For vehicles with rusted or stubborn bolts, optional Grade 8 hardware kits are available to make the process even smoother and more reliable.

  • Vehicle Fitment: Jeep Wrangler JK 07-18 – Enhances stability, axle alignment, and off-road performance while maintaining smooth on-road handling.

  • CORE Advantage: Johnny Joints provide insane articulation and flexibility, allowing for maximum suspension travel and improved off-road control.

  • Adjustability: Fully adjustable for 0–6” lifts, ensuring precise axle re-centering, caster correction, and optimal suspension geometry for any terrain.

  • Construction: Made from 1.5” OD DOM tubing with a 5/16” wall, powder-coated for extreme strength, durability, and long-term corrosion resistance.

  • 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, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

Built With

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.

Make Model Submodel Years
Jeep Wrangler 2007 - 2018

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

Construction & Materials

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.

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

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, lift height, and any add-on options, then add to cart. 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.

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Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
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
EA
Eric Ahonen Mar 24, 2021
Google
Awesome control arms! My mechanic said “ your Jeep is pretty much bulletproof now.” And I just got the tier 1 arms! The people at the core 4x4 shop were really nice too. They were running behind on shipping, (which is understandable) so I decided to go pick it up because it was only an hour drive. They gave me a free $60 hardware kit for the inconvenience. Thanks core 4x4! You guys are awesome!!
MT
Mike T Nov 23, 2025
Google
Korby and the rest of the team at Core 4x4 know there stuff and answered my question in a timely manner. They even were able to quick ship a re-build kit for me so I could get my truck back on the road- Thanks!
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!
JI
Jerome Segura III Jun 26, 2025
Google
I bought the 16pc Cruise Series Adjustable Control Arm, Track Bar, Steering, End Link Kit to replace a worn budget 4" lift on my used JKU. These are top quality parts; very solid. Customer service is unsurpassed. They even matched prices on my order placed before the tax day sale. I made an error in ordering a drag link flip kit; they were quick to help me fix this too. There's peace of mind knowing these components are made in the USA. Thank you. 👍👍
Review photo 1 Review photo 2
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.
BA
bryan angell Jun 26, 2025
Google
First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
Review photo 1
JO
Jaime Overmyer Nov 23, 2025
Google
Korby was extremely helpful in helping me find the right part for my truck. He was kind, knowledgeable, and patient while I asked a million questions. He also went out of his way to find the right shipping option for me since it’s tricky where I live. I’m looking forward to getting the parts so I can fix my truck and go adventuring again soon!
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.
JJ
JT JT Dec 23, 2025
Google
We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.

Specifications

Color Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Lift Size 0" — 6", 6"+
Hardware No Hardware, Complete Kit
Vehicle Jeep Wrangler JK / JKU (07–18)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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