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Jeep Gladiator JT 20+ 4pc Crawl Series Rear Adjustable Control Arm Kit
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757.64 757.64 USD 923.95

923.95

(Save 18%)

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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://dev.core4x4.com/web/image/product.template/2136/image_1920?unique=79f0eb9

4pc Crawl Series Rear Adjustable Control Arm Kit

Jeep Gladiator JT 20+ 4pc Crawl Series Rear Adjustable Control Arm Kit
SKU: CRL-J-JT-RS4
Pick your vehicle to confirm fit

757.64 757.64 USD 923.95

923.95

(Save 18%)

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
  • Brand
  • Color
  • Series
  • Hardware
  • Lift Size
  • 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

Unmatched Flexibility Durability

Transform your Jeep Gladiator JT's off-road performance with the Crawl Series Rear Control Arms Set. Specifically designed for model years 2020-Present, this set of rear control arms offers exceptional strength, durability, and flexibility to elevate your vehicle's suspension capabilities while maintaining on-road comfort.

Key Features and Benefits

  • Robust Construction – Crafted from heavy-duty 1.75" OD DOM Tubing with a .313" wall thickness, offering unparalleled strength and resilience to withstand the most demanding off-road conditions.
  • Enhanced Articulation with Johnny Joints – Each arm features Johnny Joints at both ends, delivering exceptional articulation, stability, and off-road performance.
  • Adjustability for Optimal Performance – Accommodates lifts from 0 to 6 inches, allowing precise alignment corrections, axle centering, and pinion angle adjustments. For lifts exceeding 6 inches, additional solutions are available upon request.
  • Complete Suspension Control – Pair this set with the Crawl Series Rear Track Bar for a fully optimized rear-end solution, addressing axle alignment and stability while improving overall suspension geometry.

Built for Total Rear-End Control

The Crawl Series Rear Control Arms Set is engineered to handle the demands of off-road adventures while providing precise suspension control. By addressing issues such as axle misalignment and instability, this set ensures improved traction, reduced wear on components, and a smoother ride, making it an essential upgrade for serious off-road enthusiasts.

Two-Stage Powder Coating

Each control arm undergoes a two-stage powder coating process for enhanced durability and corrosion resistance. A zinc primer base coat provides robust rust protection, while a durable top coat—available in 10 vibrant colors—adds style and an extra layer of defense against harsh elements.

Proudly Made in the USA

Manufactured in Orem, UT, the Crawl Series Rear Control Arms Set reflects the best of American craftsmanship. Locally sourced materials and meticulous in-house production ensure every product meets the highest quality standards.

Optional Hardware Upgrade

  • Designed for straightforward installation, this set uses factory hardware for a hassle-free process.
  • Optional Grade 8 hardware kits are available separately for dealing with rusted or stubborn bolts, ensuring a secure and reliable fit.

 

  • Vehicle Fitment: Jeep Gladiator JT 20+ – Upgrade rear suspension control with precision-engineered control arms designed for unmatched strength, articulation, and alignment correction, ensuring superior handling in all driving conditions.

  • CORE Advantage: This set eliminates axle misalignment, enhances traction, and optimizes suspension geometry, delivering complete rear-end control for off-road articulation and smooth, predictable on-road drivability.

  • Adjustability: Fully adjustable to accommodate lifts from 0 to 6 inches, allowing fine-tuned pinion angle correction, axle centering, and suspension tuning for improved ride quality and long-term performance.

  • Construction: Built from 1.75” OD DOM tubing with a 5/16” wall thickness, these control arms feature Johnny Joints at both ends, maximizing articulation, durability, and control across even the toughest terrain.

  • 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

Rear Upper Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Rear Lower Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” 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 Rear Lower Adjustable Control Arms

Rear Lower control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Jeep Gladiator JT 20+ 2pc Crawl Series Rear Upper Adjustable Control Arms

Rear Upper control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” 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 Rear Upper, Rear Lower, Rear
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%
NM
Noah Myers Mar 23, 2024
Google
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!
GN
Glenn Nowosad Jan 22, 2026
Google
I just finished installing the Peak 2.0 Front Suspension system with the Core 4x4 Blue Tacoma Rear Suspension system on my 2024 TRD Offroad Premium Tacoma. The two upgraded suspension systems really made a difference in how the ride feels, whether we’re off-road or on the road. A big thank you to Korby and the team at Core 4x4 for their support and for getting the shipping sorted out so quickly!
Review photo 1 Review photo 2 Review photo 3 Review photo 4
HK
Harold Kruder Mar 23, 2024
Google
I needed some parts and had to replace 1 lower control arm and their customer service is great. Helped with answering my questions and got parts shipped quickly.
TW
Travis Walker Sep 24, 2025
Google
I have nothing but great things to say about this company and their customer service. If you like American made products backed by warranty and amazing customer support, this is the company for you. I have a Lexus GX470 and love their rear control arms.
Review photo 1 Review photo 2
DW
Darin Wuebbels May 27, 2025
Google
Thanks for the fabulous customer service. Your products and customer service are first class. I highly recommend these guys. Excellent experience.
Review photo 1
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.
ST
Sal Torres May 27, 2025
Google
upper control arms look great and went on easy.. only reason I gave 4 stars and not 5 is because of a shipping issue which put my build a week behind. The issue was resolved quickly and painlessly, great customer service. Only time will tell how control arms perform but they look great and like they will go above and beyond control arm demand.
NP
Norb Pranger Oct 24, 2025
Google
Not sure where to start, Products or Service or Warranty. Products: I found Core4x4 through a very respected YouTuber in the Jeeping community. I purchased an entire set of Core4x4 Control Arms three years ago and have beat the daylights out of them and they are still in great condition. Now, I purchased another Jeep, this time for my daughter and bought yet another set of Control Arms because I know that these things can take a beating and stand up to it. I plan on replacing more parts on this TJ and my JL and will continue to buy from Core4x4. Service: This isn't some huge name conglomerate that treats you like you're just another customer. They are quick with responses and will always make things right should something be a problem. Oh and the quickness in which they ship their products is unmatched. I bought these CAs for my TJ on Thursday, I received them on Monday. Most other manufacturers will tell you weeks, they had them to me in 2 shipping days. Warranty: Seriously, a lifetime warranty? Yes please. Nothing more to say. I can't say enough about how great of a company this is. I've even spoken to the owner through email a few years back on some questions that I had. Support small American built businesses. P.S. Core 4x4, feel free to make me an ambassador and send me some swag :) .
RG
Robert Van Gorder Apr 27, 2025
Google
Amazing service. Bought a track bar through Americantrucks.com and they sent it with the wrong size bushing sleeve. Korby at Core 4x4 was quick to get me the correct size and very responsive. Will definitely be using more of their stuff.
JC
John Cutler Oct 24, 2025
Google
In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
Review photo 1 Review photo 2 Review photo 3 Review photo 4

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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