Skip to Content
ADD YOUR VEHICLE
Shop

8pc Crawl Series Adjustable Control Arm Kit

Jeep Gladiator JT 20+ 8pc Crawl Series Adjustable Control Arm Kit
Pick your vehicle to confirm fit

1,450.53 1450.53 USD 1,611.70

1,611.70

(Save 10%)

See financing options →

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
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/1904/image_1920?unique=edc8f61

8pc Crawl Series Adjustable Control Arm Kit

Jeep Gladiator JT 20+ 8pc Crawl Series Adjustable Control Arm Kit
SKU: CRL-J-JT-CS8
Pick your vehicle to confirm fit

1,450.53 1450.53 USD 1,611.70

1,611.70

(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.
  • 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 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

Elevate Your Jeep Gladiator’s Suspension Performance

Upgrade your Jeep Gladiator JT with the Crawl Series Complete Control Arm Set, designed for superior off-road articulation and on-road drivability. This 8-piece suspension kit delivers unmatched durability, adjustability, and control, ensuring your Gladiator is prepared for any terrain. Whether you're tackling rugged trails or navigating daily commutes, this set provides the precision and strength needed for an optimized suspension system.

Key Features and Benefits

  • Heavy-duty tubing – Upper arms feature 1.5” OD tubing, and lower arms utilize 1.75” OD DOM tubing for unmatched strength and performance.
  • Full adjustability – Accommodates lifts from 0 to 6 inches, allowing for precise alignment, axle centering, and improved suspension geometry.
  • Johnny Joints at both ends – Provides superior articulation, durability, and long service life, even under extreme off-road conditions.
  • Seamless integration – Pairs perfectly with other Crawl Series components for a complete suspension transformation.

Engineered for Superior Durability

Each control arm is purpose-built to withstand extreme conditions while delivering reliable performance. The lower control arms are constructed from 1.75” OD DOM tubing with a 5/16” wall thickness for maximum strength and stability, while the upper control arms feature 1.5” OD DOM tubing with the same robust wall thickness. Equipped with Johnny Joints at both ends, these control arms offer unparalleled articulation, flexibility, and long-lasting performance. The front upper control arms feature a U-bracket at the axle end for seamless integration with factory bushings.

Optimized Adjustability for Perfect Suspension Geometry

Designed to accommodate lifts from 0 to 6 inches, the Crawl Series Control Arms allow you to fine-tune your suspension for precise alignment correction, axle centering, and optimal pinion and caster angles. By combining all 8 control arms, this kit ensures a fully dialed-in suspension setup for superior handling and performance. For lifts beyond 6 inches, custom solutions are available—just contact us for assistance.

Two-Stage Powder Coating for Maximum Protection

Our control arms undergo a meticulous two-stage powder coating process for superior durability and corrosion resistance. A zinc primer base coat provides robust rust protection, while a durable top coat in your choice of 10 vibrant colors adds long-lasting protection and a personalized touch to your Gladiator.

Proudly Made in the USA

Every component of the Crawl Series is proudly manufactured in our Orem, UT facility. By managing the entire production process in-house and sourcing materials locally, we maintain the highest quality standards while supporting American manufacturing.

Optional Hardware Upgrade

This complete set of control arms is designed for a straightforward installation using factory hardware. Optional Grade 8 hardware kits are available separately for those dealing with rusted or stubborn bolts, ensuring a smooth and stress-free setup.

Final Thoughts

The Crawl Series Complete Control Arm Set is the ultimate suspension solution for Jeep Gladiator JT owners seeking maximum off-road performance and on-road comfort. With its robust construction, precise adjustability, and seamless integration, this kit transforms your vehicle into a trail-dominating machine. Upgrade today and experience the unparalleled performance and reliability of the Crawl Series!


  • Vehicle Fitment: Jeep Gladiator JT 20+ – Provides a complete suspension upgrade for enhanced axle control, stability, and off-road capability.

  • CORE Advantage: Delivers full control over axle positioning, caster, and pinion angles while offering unmatched articulation for superior off-road flexibility.

  • Adjustability: Fully adjustable for 0–6” lifts, allowing fine-tuned alignment correction, axle centering, and optimized suspension geometry for any terrain.

  • Construction: Built from heavy-duty DOM tubing with 5/16” walls, featuring 1.75” OD lowers, 1.5” OD uppers, and 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.

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 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.

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
Lift Size 0" — 6" or 6"+
Hardware No Hardware or Complete Kit
Placement on Vehicle Front Upper, Front Lower, Rear Upper, Rear Lower, Front, Rear
Mounting Style Bolt-On
Google

Reviews of Core 4x4

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
RH
Rex Hodges Jun 26, 2025
Google
After ordering an upper and lower adjustable control arm kit manufactured by CORE 4X4 from a jeep parts distributor who's intials are E.T., they came with 3 of the threaded ends missing. After over 2 months of phone calls and emails to this E.T. company nothing was resolved. I finally decided to call CORE 4X4 myself and tell them my dilemma. I spoke with a very personable and professional gentleman named Korby, who is one of CORE 4X4's representatives, after a brief discussion of what I went thru he simply asked me for a picture and some measurements and the items I was missing and asked if I could cover ONLY the cost of shipping and I had my missing parts in exactly 1 weeks time. This company not only builds all it's parts in the U.S.A., they stand behind their products with great customer service and life time warranty. My experience with this company and their Rep Korby was fantastic. I would definitely recommend CORE 4X4 to anyone who needs parts for any 4x4 projects. You just can't beat their quality and service. Rex Hodges Valparaiso, Indiana
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.
8
89Patriot Jan 22, 2026
Google
Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.
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.
TH
Todd Hume Jan 22, 2026
Google
Their products are great but the service is even better!! Thanks Korby.
MV
Mr. V Mar 24, 2021
Google
Good quality parts, much stronger than stock
BS
Bailey Smith Mar 23, 2025
Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
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
P
Paul Mar 24, 2023
Google
I've been having trouble with the track bar (on my 2nd gen Dodge) since I installed the 3rd gen Synergy adapter bracket and a 3rd gen stock bar.. oddly, they call it a '3rd gen bracket' and the stock 3rd gen bar doesn't quite fit, making contact with the bracket. I had attempted to clearance the bracket but it was still making contact and I could feel it over large bumps. I reached out to a lot of companies, but Core 4x4 offered to make a custom bar for the application with adjustability and dual Johnny joints. The first pass on it didn't work but they sent me out another passenger side end that made it fit incredibly well. This was all done solely over email/descriptions/pictures/measurements. Bar is super high quality and heavy duty, made in the US by a family owned company and carries a lifetime warranty. The customer service was responsive and superb, and the price was a lot less than I expected.
JJ
JT JT Dec 23, 2025
Google
We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.

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: -
Tags
Tags
ADD YOUR VEHICLE Find exact-fit parts
Find →
Pick your series in 30 seconds.
Find My Series →
30-second quiz
Shop by vehicle
Loading…
UNIVERSAL · FITS ANYTHING
DRIVETRAIN Choose vehicle for fit
Drivetrain Coming Soon Axles · Gearing · Driveshafts