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CORE 4X4 · Suspension SKU: CRL-J-TJLJ-FU2

2pc Kit

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

Jeep Wrangler TJ 97-06 LJ 04-06 2pc Crawl Series Front Upper Adjustable Control Arms
$258.68 $293.95 Save $35

CRUISE from $134 · CAMP $259

$ 258.68 258.68 USD $ 293.95

$ 293.95

Save $ 35.27

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
What size lift will the parts be used on?
Adjustment Type
Select for easy on-vehicle adjustment. Available for control arms only. Double threaded lower arms will be straight, some trimming may be required to clear front lower shock mount.
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CORE 4X4 · Suspension

2pc Kit

Jeep Wrangler TJ 97-06 LJ 04-06 2pc Crawl Series Front Upper Adjustable Control Arms

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

Does not fit your Ford Bronco Shop parts that fit ›

COLOR Pick yours

Build Your Kit

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  • Brand
  • Color
  • Series
  • Lift Size
  • Hardware
  • Adjustment Type
  • Note to Core4x4:

$ 258.68 258.68 USD $ 293.95

$ 293.95

Save $ 35.27

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

Alignment recommended Lifetime warranty on all non-wear items 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 1997–2006
Jeep Wrangler 2004–2006

  • Vehicle Fitment: Jeep Wrangler TJ LJ 97-06 – Engineered to improve axle alignment, handling, and off-road articulation, these upper control arms refine suspension geometry for precise drivability across all terrains.

  • CORE Advantage: Equipped with a Johnny Joint at the adjusting end, these control arms provide superior articulation, eliminating binding while maintaining smooth operation for better control on rocky trails and uneven terrain.

  • Adjustability: Designed for lifts from 0 to 6 inches, these arms allow fine-tuned pinion angle correction and axle positioning, improving stability, reducing driveline vibrations, and optimizing suspension geometry for all setups.

  • Construction: Built from 1.5” OD DOM tubing with a 5/16” wall thickness, these arms are paired with a U-bracket at the axle end, integrating with factory bushings for unmatched durability, flex, and long-lasting performance.

  • 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 fixed end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Forged Johnny JointJoints
1.75" OD lowers / 1.50" OD uppersTubing
5/16" DOMWall
Periodic greasingMaintenance

Construction & Materials

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

Vehicle Jeep Wrangler TJ (97–06) or Jeep Wrangler LJ (04–06)
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
Adjustment Type Single Threaded or Double Threaded
Placement on Vehicle Front Upper, Front
Mounting Style Bolt-On

Peak Performance On and Off-Road

Enhance your Jeep Wrangler TJ LJ (1997-2006) with our Crawl Series Front Upper Control Arms. Delivering exceptional off-road flexibility and maintaining smooth on-road manners, these control arms provide a crucial upgrade for Jeep enthusiasts seeking superior handling and performance in any terrain.

What’s Included:

  • Crawl Series Front Upper Control Arms (CRL-J-TJLJ-FU2)

Key Features and Benefits:

  • Exceptional Off-Road Flexibility – Equipped with Johnny Joints from Rock Jock 4x4 at the adjusting end, these control arms deliver unmatched articulation for conquering rough trails and rocky terrains.
  • Robust Construction for Maximum Durability – Made from 1.5" OD DOM Tubing with a 5/16” wall thickness, these control arms are engineered to withstand the harshest conditions while ensuring long-lasting performance.
  • Precise Suspension Adjustability – Designed to accommodate lifts from 0 to 6 inches, these control arms allow you to fine-tune your alignment, re-center the axle, and achieve optimal suspension geometry for improved handling.
  • Recommended Pairing for Complete Front-End Performance – Pair these upper control arms with Crawl Series Front Lower Control Arms to fully dial in your alignment and maximize axle control for a balanced and high-performing front end.

Engineered for Durability and Performance

Our Front Upper Control Arms stand out with their innovative design and top-quality construction. The U-bracket at the axle end integrates seamlessly with factory bushings, while the Johnny Joint at the adjusting end enhances articulation and flexibility. This combination ensures a smoother ride, improved control, and longer-lasting durability under all driving conditions.

Two-Stage Powder Coating for Enhanced Protection

Every Crawl Series Front Upper Control Arm is treated with a two-stage powder coating process for superior corrosion resistance and durability. A zinc primer base coat forms a solid foundation to combat rust, while the top coat, available in 10 color options, provides an extra layer of protection and customization for your vehicle.

Proudly Made in the USA

Manufactured at our facility in Orem, UT, the Crawl Series Front Upper Control Arms represent the highest standards of American craftsmanship. By choosing this product, you’re supporting local manufacturing and receiving a product built with precision and care.

Optional Hardware Upgrade

Our control arms are designed for straightforward installation using factory hardware, minimizing downtime and effort. For rusted or stubborn bolts, optional new Grade 8 hardware kits are available separately to ensure a seamless and secure installation.


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, 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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Store reviews on Google

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5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
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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.
AP
Ajay Paynter Mar 9, 2026
★ ★ ★ ★ ★ Google
Great company, who worked with me on shipping parts, to arrive in time for a show, when I explained my concern of possibly not getting the control arms in time. Quality is amazing on the part, affordable price for what you get, and the powdercoat is top notch, not a single issue with this product, would buy again.
GV
Gil Valk Sep 24, 2025
★ ★ ★ ★ ★ Google
Excellent service, Prompt responses when needing technical assistance, Amazing looking parts that fit excellently. I would recommend them to anyone looking for suspension components. Also very well packaged when we received the shipment, which means no damage from shipping company!! We went with the Crawl Series double adjustable kit and it definitely looks killer on our build!!!
Review photo 1 Review photo 2 Review photo 3 Review photo 4
DA
Dastrup Auto Mar 25, 2019
★ ★ ★ ★ ★ Google
I have bought a bunch of sets of arms, track bars and even had custom work done by Core 4x4. Just yesterday, Spence and Cam delivered an awesome cross member they designed and built for me! All of their products have been exceptional! I have personally seen their progression with design changes/updates. They truly take pride in their work and products. Quality control is second to none! They’ve also helped me diagnose issues with different jeeps I’ve had, as well as Dodge/Rams. These guys know their stuff! Really! I trust them whole heartedly and absolutely love their products/quality of work! I’ve referred many people, and will always continue to do so. Keep up the good work Core4x4!
GC
Grant Chaisson Jun 26, 2025
★ ★ ★ ★ ★ Google
These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress. There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 . Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
Review photo 1
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Bailey Smith Mar 23, 2025
★ ★ ★ ★ ★ Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
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.
GK
GLENN KOSZKA Apr 27, 2025
★ ★ ★ ★ ★ Google
The folks at Core 4X4 are always wonderful to deal with. They explain your options and never pressure or rush things. The quality of the Core Control Arms is top shelf, especially if your goal is to stop wheel hop. I recommend Core 4x4 without reservation ! ! !
L
luke Mar 24, 2021
★ ★ ★ ★ ★ Google
Excellent quality product and service. My l lower control arms broke and within the same day core 4x4 hooked me up with tier 2 arms and with the color I wanted. My Jeep rides better and has been solid for several months so far. 10/10 would recommend their products to anyone.
JS
Jeffrey Shafer Jan 22, 2026
★ ★ ★ ★ ★ Google
Exceptional customer service. All my questions were asked in a timely manner and parts were replaced when an error occured. I encourage people to make purchases due to their exceptional quality products, but also because of their customer service. Will make additional purchases in the future.
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Made in Orem, UT · You break it, we replace it.
385-375-2104
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