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4pc Crawl Series Rear Adjustable Control Arm Kit

Jeep Gladiator JT 20+ 4pc Crawl Series Rear Adjustable Control Arm Kit
Pick your vehicle to confirm fit

785.36 785.36 USD 923.95

923.95

(Save 15%)

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Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
https://dev.core4x4.com/web/image/product.template/2136/image_1920?unique=edc8f61

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

785.36 785.36 USD 923.95

923.95

(Save 15%)

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 within 1–3 business days
Enter ZIP for arrival estimate change
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
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.

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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%
BZ
Brandon Zeiders Dec 23, 2025
Google
I ordered the jeep xj long arm lift kit. Control arms showed up first they turned out amazing!! Had some issues with the powder coating on the cross member and sent korby and the team at core4x4 an email. They got right on making me another cross member and sending it out. I appreciate all the help they've given me along the way. Very fast response thru emails. Build quality seems to be pretty dang nice!! Can't wait to install it and enjoy it!
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!
AP
Ajay Paynter Mar 4, 2026
Google
Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
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
JT
Jay Taylor May 27, 2025
Google
Had a worn out set of rear upper control arms on my TJ. These were old rubicon express long arms. can’t buy replacements and no one makes a direct fit replacement. Talked with Korby at core off road sent some measurements and photos and a week later new arms showed up. Packaging was perfect fit was perfect. Would highly recommend giving these guys a call.
MH
mark hinz Mar 2, 2026
Google
Went above and beyond to get the parts we needed to complete our customers build for Moab Easter safari cant thank you enough for all your hard work and efforts Thank you and look forward to working with you in the near future
MG
Morgan Griffith Mar 25, 2018
Google
I met a couple of the Core 4x4 guys at the Salt Lake Offroad Expo and decided to try them out after noticing one of my control arm bushings was disintegrated. I called to discuss parts on Thursday and I was leaving for a trip on Saturday. These guys built my control arms and had them ready to be picked up Friday, 24 hours later. The parts seem to be great quality and they charged me nothing extra to have them painted. These guys were extremely helpful and without them my trip probably would have been cancelled. looking forward to testing out the arms on my next trip to Moab.
RD
Reagan D'mello Dec 23, 2025
Google
Love the product. Excellent customer support 👍🏽 …
SH
Shawn Hooten Apr 27, 2025
Google
Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
OJ
Oldgreg jr Mar 23, 2025
Google
Good company, they offer well built parts and Great customer service. I had a couple of hang ups with my control arms that I purchased, they were very easy to work with and found the solution to make them work.

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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