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Jeep Gladiator JT 20+ 4pc Crawl Series Front Adjustable Control Arm Kit
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689.81 689.81 USD 766.45

766.45

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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 $40 value
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/2118/image_1920?unique=982bc5a

4pc Crawl Series Front Adjustable Control Arm Kit

Jeep Gladiator JT 20+ 4pc Crawl Series Front Adjustable Control Arm Kit
SKU: CRL-J-JT-FS4
Pick your vehicle to confirm fit

689.81 689.81 USD 766.45

766.45

(Save 10%)

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.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • 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 $40 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

Maximize Your Jeep’s Performance and Handling

Upgrade your Jeep Gladiator JT’s front suspension with the Crawl Series Front Control Arms Set, engineered to solve factory alignment challenges and enhance your off-road experience. Designed for model years 2020-Present, this comprehensive set includes a pair of Front Lower Control Arms (CRL-J-JT-FL2) and a pair of Front Upper Control Arms (CRL-J-JT-FU2). Together, they provide the ultimate solution for addressing factory caster deficiencies and re-centering the front axle, while offering exceptional flexibility for lifts from 0 to 6 inches. Pairing with our Crawl Series Front Track Bar or Rear Control Arms creates a complete suspension upgrade for unmatched performance.

Detailed Key Features and Benefits

  • Enhanced Alignment Correction – Addresses factory caster deficiencies and improves drivability, eliminating wandering and rut-following tendencies. Perfect for correcting geometry on vehicles with lifts from 0 to 6 inches.
  • Heavy-Duty Construction – Built with 1.75” OD DOM tubing for the lowers and 1.5” OD DOM tubing for the uppers, both with 5/16” wall thickness, ensuring unmatched strength and durability on tough trails.
  • Johnny Joints for Maximum Flexibility – Equipped with Rock Jock Johnny Joints at both ends for superior articulation and smoother movement, allowing for bind-free performance in extreme off-road conditions.
  • Complete Suspension Solution – Pair this Front Control Arms Set with our Crawl Series Rear Control Arms Set to optimize axle alignment, articulation, and overall performance, creating a fully capable suspension system ready for any terrain.

Engineered for Flexibility and Precision

This set is designed to solve factory caster issues, particularly noticeable with smaller lifts, while remaining compatible with taller lifts. When paired with our Front Track Bar or Rear Control Arms, you’ll experience the ultimate in axle alignment, articulation, and overall suspension performance.

Premium Two-Stage Powder Coating

All components undergo a rigorous two-stage powder coating process, featuring a zinc primer base for corrosion resistance and a durable top coat in your choice of 10 colors, ensuring long-lasting protection and customization.

Made in the USA

Proudly manufactured in Orem, UT, our Crawl Series Front Control Arms are built to the highest standards of American engineering, offering premium quality and durability you can trust.

Optional Hardware Upgrade

Designed for straightforward installation using factory hardware, with optional Grade 8 hardware kits available separately to handle rusted or stubborn bolts.


  • Vehicle Fitment: Jeep Gladiator JT 20+ – Resolves factory caster issues, improves handling, and ensures optimal suspension geometry for lifted and stock-height setups.

  • CORE Advantage: Enhances steering stability, eliminates wandering, and increases axle articulation, delivering smoother on-road performance and superior off-road capability.

  • Adjustability: Fully adjustable for lifts from 0 to 6 inches, allowing for precise caster correction, axle re-centering, and optimized suspension alignment.

  • Construction: Built with heavy-duty 1.75” OD DOM tubing for lowers and 1.5” OD DOM tubing for uppers, both with 5/16” wall thickness, featuring Johnny Joints at both ends for maximum articulation and durability.

  • 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 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.

Make Model Submodel Years
Jeep Gladiator 2020 - Present

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

Construction & Materials

Jeep Gladiator JT 20+ 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 Gladiator JT 20+ 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.

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
Hardware No Hardware or Complete Kit
Lift Size 0" — 6" or 6"+
Placement on Vehicle Front Upper, Front Lower, 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.

Google

Reviews of Core 4x4

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
AS
Anthony Snyder Jun 26, 2025
Google
Great experience and really great parts
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
DT
Dean Tk421 Feb 21, 2026
Google
I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
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!
BB
Brayden Brockey Mar 23, 2024
Google
Got a set of upper control arms for my xj, really impressed with the quality
Review photo 1
JG
James Griffin Jul 26, 2025
Google
Customer service is top notch. They answered all of my questions and got me my tracking number for my packages. I just received both of them and the quality is next level. You guys are truly awesome.
Review photo 1
TM
T Mac Mar 23, 2026
Google
CORE 4X4 Company produces/manufactures exceptional products. My rear upper and lower control arms and rear track bar were powder coated custom Fox “Shock Orange” for my 2024 Bronco Wildtrak. OEM looks minimal compared to the CORE 4X4 control arms. Plus they’re adjustable, serviceable and rebuildable. Shipment was very fast and packaging used custom foam wrapped around the arms and heavy duty boxes. Not even UPS could damage. Korby L. was great to work with and responded quickly with emails and product information. Great products. Great people from the State of Utah. All Made in the USA. 5 Stars!!!
JL
John Luna Nov 23, 2025
Google
Great team, and help to support my jeep and provide best stuffs
K
Korosunagi Jul 26, 2025
Google
I broke a grease fitting off in my end link. I thought I was going to have to buy a new one. Reached out to Core 4x4 and wham! bam! They fixed it and sent it back with 2 day shipping. Got it a day early even. If they couldn't fix it they were going to send me a new one. Now that's customer service! They are now a permanent part of my garage. Thank you Core 4x4!
PB
Peter Busack May 27, 2025
Google
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.

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.
Hardware No Hardware, Complete Kit
Lift Size 0" — 6", 6"+
Vehicle Jeep Gladiator JT (20–Present)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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