Jeep Wrangler JL/JLU 2pc Cruise Series Front Upper Adjustable Control Arms

Name: Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Front Upper Adjustable Control Arms
Brand: CORE 4X4
SKU: CRS-J-JL-FU2
Price: 251.95 USD
Availability: InStock

Control Arms

SKU: CRS-J-JL-FU2 ★★★★★ (132 reviews)

$ 201.56 201.56 USD $ 251.95

$ 251.95

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Salt Lake City, UT change

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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install

Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Front Upper Adjustable Control Arms

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COLOR 11 colors — pick yours

	Daily Confidence $201	Trail-Ready $267	Trail Domination $283
Articulation	30°	65°	95°
Joint Type	Flex Polyurethane	Forged Johnny Joint	Forged Johnny Joint
Tubing	1.875" OD lowers / 1.625" OD uppers · 3/16" wall DOM	1.75" OD lowers / 1.50" OD uppers · 5/16" wall DOM	1.75" OD lowers / 1.50" OD uppers · 5/16" wall DOM
Maintenance	Periodic greasing	Periodic greasing	Periodic greasing
Warranty	Lifetime	Lifetime	Lifetime
	SELECT CRUISE →	SELECT CAMP →	SELECT CRAWL →

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

Regain Proper Caster Improve Front-End Stability

When lifting your Jeep Wrangler JL, maintaining proper caster angle is crucial for steering stability, handling, and overall drivability. Factory suspension geometry is already lacking in caster, and adding a lift can worsen the issue—leading to wandering, following ruts in the road, and a loose steering feel.

Our Cruise Series Front Upper Control Arms are designed to fine-tune caster correction, improving steering precision, high-speed stability, and tire wear. When paired with our Cruise Series Front Lower Control Arms (CRS-J-JL-FL2), this combination completely restores axle centering, suspension alignment, and caster angles, offering a full front-end suspension solution for lifted Jeeps.

Key Features Benefits

Restores proper caster angle – Adjustability allows fine-tuning of suspension geometry, eliminating wandering, pulling, and unstable steering after lifting your Jeep.
Improves steering response high-speed stability – Proper caster helps keep your steering wheel centered and reduces fatigue from constant corrections.
Heavy-duty steel construction – Built from high-strength steel tubing, these arms deliver long-lasting durability and enhanced off-road performance.
Unique U-bracket design – The axle end U-bracket mounts directly to the factory axle bushing, maintaining a secure and quiet ride.
Recommended pairing for maximum stability – Combine with our Cruise Series Front Lower Control Arms (CRS-J-JL-FL2) to fully correct caster, re-center the axle, and eliminate steering instability.

Adjustability for Lifts from 0 to 6 Inches

Whether you're at factory height or running a 6-inch lift, these fully adjustable control arms allow precise caster correction and suspension alignment. If you’re running a lift over 3 inches, pairing with our adjustable Front Lower Control Arms ensures full caster correction and axle re-centering for maximum control. For lifts beyond 6 inches, contact us for additional options.

Durable Two-Stage Powder Coating

Each control arm undergoes a two-stage powder coating process: Zinc primer base coat – Ensures maximum rust and corrosion protection, especially in harsh climates. Durable top coat – Available in 10 color options, allowing you to customize your Jeep’s suspension components while adding extra durability.

Proudly Made in the USA

Manufactured in Orem, UT, these control arms are built with 100% American-made materials to exacting quality standards. By choosing our Cruise Series, you support local manufacturing and high-quality craftsmanship.

Optional Hardware Upgrade

Our Cruise Series Front Upper Control Arms are designed to reuse your Jeep’s factory mounting hardware. If your existing bolts are rusted, worn, or difficult to remove, we offer optional Grade 8 hardware kits separately for a hassle-free installation and added durability.

For the best results, pair with our Cruise Series Front Lower Control Arms (CRS-J-JL-FL2) to create a complete front-end suspension upgrade, eliminating wandering, rut-following, and excessive steering corrections.

Upgrade today and take control of your Jeep’s handling!

Vehicle Fitment: Jeep Wrangler JL 18+ – Corrects pinion angle and improves suspension alignment, ensuring better driveline geometry after lifting.
CORE Advantage: Designed to work with adjustable lower control arms to fully restore caster and axle positioning, reducing driveline strain.
Adjustability: Single-adjustable design fine-tunes pinion angle for lifts from 0 to 6 inches, helping to reduce vibrations and drivetrain wear.
Construction: Heavy-duty steel tubing with a U-bracket axle mount and premium polyurethane bushings for durability, strength, and smooth articulation.
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 arms built with 1.5” OD 5/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” long threads.

Make	Model	Submodel	Years
Jeep	Wrangler		2018 - Present

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

Master Rebuild kit for CRS-J-JL-FU2 $ 30.00

Construction & Materials

Front Upper control arms built with 1.5” OD 5/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” long threads.

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.
Series	Cruise Series
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.

Reviews of Core 4x4

See all on Google

5.0

★ ★ ★ ★ ★

132 reviews

5 ★

97%

4 ★

3 ★

2 ★

1 ★

Cody Whitlock Sep 24, 2025

★ ★ ★ ★ ★

10/10 overall experience, shipping, customer service, and such a great product!

Ben Mar 24, 2021

★ ★ ★ ★ ★

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!

Noah Myers Mar 23, 2024

★ ★ ★ ★ ★

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!

Gil Valk Sep 24, 2025

★ ★ ★ ★ ★

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!!!

Christopher Dami Jun 26, 2025

★ ★ ★ ★ ★

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.

Aaron Mar 23, 2024

★ ★ ★ ★ ★

I have recently come to know Core 4x4 when I purchased a Jeep XJ and was looking for a place that had dedicated XJ suspension and components. Here is what makes them different than most other shops. All of their components are top shelf quality and they back it up if you break any of it. I was able to see their shop when I picked up an order locally and was impressed with their attention to detail and how they assemble and powder coat each part. I had an issue with a shackle and needed the threaded shaft to be shorter. I called in and talked to Kaden and he told me to come by and they would shorten it for me. When I got there, Kaden and Spencer (the owner) met me and talked about options and proceeded to make the right adjustments to fit my XJ. Told me if anything changes in the future and I need additional length, they would take care of me. So what really sets them apart from others is their Customer Service. Try calling in to any other Jeep suspension or part shop and see how they treat you. Been there - done that. Will continue to do business with Core and their team. Getting that kind of service for just a shackle has me thinking I may need to replace my JT components with Core's. Thanks Guys for being helpful good humans!

Mike T Nov 23, 2025

★ ★ ★ ★ ★

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!

Leonard Smith Jan 22, 2026

★ ★ ★ ★ ★

I don’t write reviews often, but Core 4x4 absolutely earned this one. I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts. That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed. The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots. Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right. If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.

Erica Grissom May 27, 2025

★ ★ ★ ★ ★

First off, I wish I knew about them sooner. The customer service is top tier. The response time is about 30 min no waiting 1-3 days to get a response. The parts are heavy-duty and look amazing. The packaging is perfect, I can't wait to hit some trails. Thanks Core4x4

oleg k Nov 23, 2025

★ ★ ★ ★ ★

I recently ordered a set of control arms from Core 4x4, and the entire experience was absolutely top-notch from start to finish. The ordering process was smooth, the parts arrived quickly, and the control arms themselves are extremely high quality—solid construction, great finish, and clearly built to last. I also want to give a special shout-out to Korby, the guy I spoke with during the process. His customer service was amazing. He went above and beyond to make sure I got exactly what I needed, answered all my questions, and made the whole experience stress-free. You don’t see service like that very often these days. If you’re looking for high-quality suspension components backed by truly exceptional customer service, I highly recommend Core 4x4. I’ll definitely be buying from them again.

Accessories & Add-ons

8pc Kit

Jeep Wrangler JL / JLU 18+ 8pc Cruise Series Adjustable Control Arm Kit

$ 976.45

Front Lower Control Arms

Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Front Lower Adjustable Control Arms

$ 288.70

Front Set

Jeep Wrangler JL / JLU 18+ 4pc Cruise Series Front Adjustable Control Arm Kit

$ 524.95