Skip to Content
ADD YOUR VEHICLE
Shop
Jeep Gladiator JT 20+ 2pc Cruise Series Rear Upper Adjustable Control Arms
Pick your vehicle to confirm fit

188.96 188.96 USD 251.95

251.95

(Save 25%)

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
Free mounting hardware included — a $20 value
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/2166/image_1920?unique=982bc5a

2pc Cruise Series Rear Upper Adjustable Control Arms

Jeep Gladiator JT 20+ 2pc Cruise Series Rear Upper Adjustable Control Arms
SKU: CRS-J-JT-RU2
Pick your vehicle to confirm fit

188.96 188.96 USD 251.95

251.95

(Save 25%)

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.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • 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
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

Performance and Control

Enhance your Jeep Gladiator JT’s performance on and off the road with our Cruise Series Rear Upper Control Arms. Designed for 2020-Present models, these control arms provide superior strength, precise adjustability, and durability over factory components, making them a critical upgrade for lifted vehicles.

Key Features and Benefits

  • Pinion Angle Correction – Adjustable design eliminates driveline vibrations by properly aligning the rear pinion angle.
  • Axle Re-centering – Works in conjunction with rear lower control arms to maintain optimal axle position.
  • Heavy-Duty Steel Construction – Built to withstand extreme off-road conditions while improving handling.
  • Tapered Polyurethane Bushings – Enhances ride quality by reducing vibrations and providing superior responsiveness.
  • Recommended Pairing – For a complete rear-end alignment solution, pair with our Cruise Series Rear Lower Control Arms (CRS-J-JT-RL2).

Precision Pinion Angle Alignment

One of the most overlooked but critical factors in suspension geometry is pinion angle alignment. When lifting a Jeep Gladiator, the pinion angle often becomes misaligned, leading to driveline vibrations, premature wear, and reduced drivetrain efficiency. Our adjustable Rear Upper Control Arms allow you to precisely correct the pinion angle, ensuring smooth operation and extending the life of drivetrain components.

When combined with our Cruise Series Rear Lower Control Arms (CRS-J-JT-RL2), this setup gives you full control over axle alignment and pinion correction, minimizing suspension stress and improving overall handling.

Two-Stage Powder Coating

Our control arms undergo a two-stage powder coating process for maximum durability and corrosion resistance. Zinc primer base coat – Provides superior rust protection. Durable top coat – Available in 10 color options, letting you customize your control arms to match your build.

Made in the USA

Proudly manufactured in Orem, UT, our Cruise Series Rear Upper Control Arms are built using locally sourced materials and strict quality control standards to ensure unmatched durability and performance.

Optional Hardware Upgrade

These control arms can be installed using factory hardware. However, if you're dealing with rusted or seized bolts, we offer Grade 8 hardware kits separately to streamline installation and ensure a secure fit.

Enhance your Jeep Gladiator JT’s handling, durability, and ride quality today with high-performance, American-made engineering.


  • Vehicle Fitment: Jeep Gladiator JT 20+ – Adjustable control arms improve rear axle alignment, suspension geometry, and driveline performance.

  • CORE Advantage: Corrects pinion angle to eliminate driveline vibrations, reducing wear on U-joints and improving ride quality.

  • Adjustability: Designed for 0 to 6 inches of lift, allowing precise pinion angle tuning and axle re-centering for lifted applications.

  • Construction: Heavy-duty steel tubing with tapered polyurethane bushings for increased durability, vibration absorption, and smoother articulation.

  • 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 1.875” DOM 3/16” Wall DOM. Polyurethane Bushings on both the adjustable end and fixed end with 1.25” x 12 TPI - 3.25” 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

Rear Upper control arms built with 1.875” DOM 3/16” Wall DOM. Polyurethane Bushings on both the adjustable end and fixed end with 1.25” x 12 TPI - 3.25” 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.
Hardware No Hardware or Complete Kit
Series Cruise Series
Placement on Vehicle Rear Upper, 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%
MH
Matthew Handy Sep 24, 2025
Google
Ran into an issue with a part that I ordered. Got ahold of them explained to them the issue I was having and they jumped in and got the issue fixed. Hands down the best customer service I have ever dealt with. The parts are hands down amazing. Highly recommend.
TG
Travis Grimm Mar 23, 2024
Google
To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
JL
John Luna Nov 23, 2025
Google
Great team, and help to support my jeep and provide best stuffs
L
luke Mar 24, 2021
Google
Excellent quality product and service. My l lower control arms broke and within the same day core 4x4 hooked me up with tier 2 arms and with the color I wanted. My Jeep rides better and has been solid for several months so far. 10/10 would recommend their products to anyone.
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 :) .
CT
Canon TeSelle Jun 26, 2025
Google
Great Experience. I wanted to make changes to my order and Korby was more than willing to work with me to get everything corrected. Hope to deal with these guys again in the future.
JM
Jason Mitchell Dec 8, 2025
Google
Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
RT
Ruby Timm Apr 27, 2025
Google
Bought a new 2019 Ram 1500. Had bad rear wheel hop since new, got all four core 4x4 control arms and it fixed the issue. Thanks
ZA
Zen Asher Mar 23, 2025
Google
The quality and durability of the arms are the best. They are super heavy duty. And lifetime warranty is crazy
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

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
Vehicle Jeep Gladiator JT (20–Present)
Brand CORE 4X4
Series Cruise 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