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Jeep Gladiator JT 20+ 2pc Crawl Series Front Upper Adjustable Control Arms
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299.20 299.2 USD 314.95

314.95

(Save 5%)

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Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
Free mounting hardware included — a $20 value
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/2153/image_1920?unique=982bc5a

2pc Crawl Series Front Upper Adjustable Control Arms

Jeep Gladiator JT 20+ 2pc Crawl Series Front Upper Adjustable Control Arms
SKU: CRL-J-JT-FU2
Pick your vehicle to confirm fit

299.20 299.2 USD 314.95

314.95

(Save 5%)

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 by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Free mounting hardware included — a $20 value

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

Elevate Your Performance On and Off the Road

Unleash the ultimate off-road flexibility with our Crawl Series Front Upper Control Arms, crafted specifically for Jeep Gladiator JT models (2020-Present). Engineered to provide superior articulation and refined on-road manners, these control arms address common alignment challenges, ensuring a smoother, more controlled ride.

Detailed Key Features and Benefits

  • Peak Off-Road Flexibility and On-Road Comfort – Maintain exceptional axle articulation for rugged terrain while enjoying improved handling and stability on the road.
  • Precise Adjustability – Compatible with lifts from 0 to 6 inches, these arms enable precise alignment correction and axle centering for optimized suspension geometry.
  • Durable Construction – Crafted from 1.5″ OD DOM Tubing with a 5/16” wall thickness, these control arms feature original Rock Jock Johnny Joints for unmatched strength and longevity.
  • Innovative U-Bracket Design – The axle end features a U-bracket to connect seamlessly to factory bushings, offering superior durability and responsive movement.

Optimizing Front-End Geometry

Designed to enhance suspension performance, the Crawl Series Front Upper Control Arms help fine-tune your vehicle’s alignment. Whether correcting pinion angles or achieving proper axle positioning, these arms are a critical component for precise handling and reduced suspension stress.

Two-Stage Powder Coating

Every arm is finished with a robust two-stage powder coating process. Starting with a zinc primer for corrosion resistance, followed by a durable top coat in your choice of 10 colors, this finish ensures long-lasting protection and a custom look.

Made in the USA

Proudly crafted in Orem, UT, our control arms are built to the highest standards, supporting local manufacturing and ensuring unrivaled quality.

Optional Hardware Upgrade

With a user-friendly design, these arms install effortlessly using factory hardware. Optional Grade 8 hardware kits are available separately for dealing with stubborn or rusted bolts.


  • Vehicle Fitment: Jeep Gladiator JT 20+ – Provides precise alignment correction, enhances axle positioning, and improves front-end suspension performance for lifted and stock-height setups.

  • CORE Advantage: Fine-tunes suspension geometry by correcting pinion angles and axle placement, reducing driveline vibrations and improving handling on and off the road.

  • Adjustability: Fully adjustable to accommodate lifts from 0 to 6 inches, ensuring proper suspension tuning for optimized ride quality and axle alignment.

  • Construction: Built from 1.5” OD .313 Wall DOM tubing with a Johnny Joint at the adjusting end and a U-bracket at the axle end for seamless integration with factory bushings.

  • 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 Gladiator 2020 - Present

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 Gladiator JT (20–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 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%
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.
C
caleb Mar 24, 2022
Google
Absolutely a great company. Ordered rear lower control arms with hardware but when i got it the hardware wasn't there but they sent it out right away and got a free t-shirt! Highly recommend.
JL
John Luna Nov 23, 2025
Google
Great team, and help to support my jeep and provide best stuffs
C
Chris Oct 24, 2025
Google
Great product for a good price. Customer service is top notch, I had an issue which was self cause and Core 4x4 helped me out even though it was my own fault. Would definitely recommend and use them again.
BM
Brantly Musgrave Jan 22, 2026
Google
First and foremost would like to say that Core4x4s customer service is top notch and they definitely stand behind their warranty on products! Highly recommend using them for any of your off road needs! It’s rare to find a company now a days that backs their products and they do! Had a few issues with mounts and control arms and they handled it without hesitation! Thank you!
TH
Todd Hume Jan 22, 2026
Google
Their products are great but the service is even better!! Thanks Korby.
JM
Jay Miller Jul 26, 2025
Google
I purchased a upper and lower set of control arms from core 4x4 they came early then expected and seem to be very nice quality I ran into a complication installing them and emailed them my question I was expecting to get the response maybe the next day because it was after hours I got a response in about a few minutes which allowed me to finish the project that day I super appreciate that, the products are good strong lifetime warranty and their customer service is top notch
S
Sebastian Oct 24, 2025
Google
Great products they sell, got a crawl series long arm kit for my xj and it has held up quite nice, they are beefy, and for what ever reason they fail it has a great warranty with a customer service to match, when someone asks what control arm kit to buy I always recommend core 4x4
LS
Leonard Smith Jan 22, 2026
Google
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.
JH
Joe Hu Sep 24, 2025
Google
Amazing! I put all my new control arms and it drives a lot smoother and looks great!!!
Review photo 1

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 Gladiator JT (20–Present)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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