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2020+ Jeep Gladiator JT

CORE 4X4 · Suspension SKU: CRS-J-JT-RS4

Jeep Gladiator JT 4pc Kit

Adjustable control arms — rear upper + lower

Jeep Gladiator JT 20+ 4pc Cruise Series Rear Adjustable Control Arm Kit
$461.96 $524.95 Save $63

CAMP from $605 · CRAWL $813 · Compare series

$ 461.96 461.96 USD $ 524.95

$ 524.95

Save $ 62.99

Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
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COLOR Pick yours
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Mounting hardware included
Talk to an Expert: 385-375-2104
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CORE 4X4 · Suspension

Jeep Gladiator JT 4pc Kit

Jeep Gladiator JT 20+ 4pc Cruise Series Rear Adjustable Control Arm Kit

Adjustable control arms — rear upper + lower

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COLOR Pick yours

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  • Note to Core4x4:

$ 461.96 461.96 USD $ 524.95

$ 524.95

Save $ 62.99

Select Color to see price and add to cart.

Mounting hardware included
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Talk to an Expert: 385-375-2104
Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Core 4x4 Manufactured Social 15 Promo Eligible

Alignment recommended You break it, we replace it. Made In USA

Made in USA Orem, Utah
You break it, we replace it Warranty on non-wear items
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Product Details

Make Model Submodel Years
Jeep Gladiator 2020–Present

  • Vehicle Fitment: Jeep Gladiator JT 20+ – Provides precise rear axle alignment, improved ride stability, and enhanced suspension durability for lifted and stock-height vehicles.

  • CORE Advantage: Eliminates driveline vibrations by ensuring proper pinion angle correction, re-centers the rear axle, and improves overall handling and ride quality.

  • Adjustability: Designed for 0 to 6 inches of lift, offering fine-tuned suspension geometry adjustments for optimal performance both on and off-road.

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

  • 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. You break it, we replace it.

Built With

Rear Upper Control Arms Built With 1.875” DOM 3/16” Wall steel tube. Polyurethane Bushings on both the adjustable end and fixed end with 1.25” x 12 TPI - 3.25” long threads.

Rear Lower Control Arms Built With 1.875” OD 3/16” Wall steel tube. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

Poly bushingsJoints
1.875" OD lowers / 1.625" OD uppersTubing
3/16" steel tubeWall
Periodic greasingMaintenance

Construction & Materials

Jeep Gladiator JT 20+ 2pc Cruise Series Rear Lower Adjustable Control Arms

Rear Lower control arms built with 1.875” OD 3/16” Wall steel tube. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

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

Rear Upper control arms built with 1.875” DOM 3/16” Wall steel tube. 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 Lower, Rear
Mounting Style Bolt-On

Enhanced Performance and Control

Upgrade your Jeep Gladiator JT (2020-Present) with our Cruise Series Rear Control Arm Set, designed to provide superior handling, durability, and axle alignment correction. This set includes both rear upper and rear lower control arms, working together to re-center the rear axle and correct pinion angles, ensuring a smoother, more controlled driving experience both on and off-road.

Key Features and Benefits

  • Heavy-Duty Steel Construction – Built from high-strength steel tubing for maximum durability and impact resistance.
  • Adjustable for 0 to 6 Inches of Lift – Allows for precise pinion angle correction and axle re-centering after lifting your Gladiator.
  • Tapered Polyurethane Bushings – Absorb vibration and enhance responsiveness, providing a smoother ride than stock rubber bushings.
  • Complete Rear Axle Alignment Solution – When paired with our Cruise Series Rear Track Bar (CRS-J-JT-RTB1), this set provides full control over rear suspension geometry, eliminating driveline vibrations and rear-end instability.

Two-Stage Powder Coating

Each control arm undergoes a two-stage powder coating process for maximum corrosion resistance and long-lasting durability. Zinc primer base coat ensures protection from rust and environmental wear. Top coat available in 10 color options, allowing for customization to match your vehicle’s build.

Proudly Made in the USA

Manufactured in Orem, UT, our Cruise Series Rear Control Arm Set is built to strict quality standards, ensuring reliability, strength, and superior performance.

Upgrade today and take full control over your Jeep’s rear suspension with the strength and precision of CORE 4X4’s industry-leading components!

 

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

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, and any add-on options, then add to cart — you’ll confirm your lift height at checkout. 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

Store reviews on Google

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
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AH
Abbey Hiett Mar 25, 2019
★ ★ ★ ★ ★ Google
Company finally made things right
MP
matthew patterson May 27, 2025
★ ★ ★ ★ ★ Google
Ive used core products for my last two jeeps and now my ram. They’re parts are the absolute best quality youll find ANYWHERE. Top quality products and A+ custom service keeps the as my go Roger for any suspension needs.
DA
Dastrup Auto Mar 25, 2019
★ ★ ★ ★ ★ Google
I have bought a bunch of sets of arms, track bars and even had custom work done by Core 4x4. Just yesterday, Spence and Cam delivered an awesome cross member they designed and built for me! All of their products have been exceptional! I have personally seen their progression with design changes/updates. They truly take pride in their work and products. Quality control is second to none! They’ve also helped me diagnose issues with different jeeps I’ve had, as well as Dodge/Rams. These guys know their stuff! Really! I trust them whole heartedly and absolutely love their products/quality of work! I’ve referred many people, and will always continue to do so. Keep up the good work Core4x4!
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
AM
Adam M Sep 24, 2025
★ ★ ★ ★ ★ Google
First time buying from Korby @ Core 4x4 and it’s being nothing short of a great experience. I bought the non adjustable Trail kit for my 5th Gen Ram 1500 with a 2” lift. The welds look great, nice powder coat finish and quality bushing. Had some trouble fitting the grease nipples due to the powder coating but a thread tap would fix that. They fit easily and perform great. I felt the improvement straight away. No more wheel hop on hard acceleration which was my main reason for the purchase. I was missing some smaller bushings needed for the 5th Gen and Korby’s custom service was on point, with responsive emails and mailing out the missing parts straight away. Very happy with their products and customer service. Highly recommended company👌🏽
Review photo 1 Review photo 2 Review photo 3 Review photo 4
MM
MIKE (Mike the Mechanic) Jul 26, 2025
★ ★ ★ ★ ★ Google
Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
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.
BA
bryan angell Jun 26, 2025
★ ★ ★ ★ ★ Google
First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
Review photo 1
LM
Logan Matejek May 27, 2025
★ ★ ★ ★ ★ Google
The parts are a massive improvement over factory. I accidentally ordered the wrong endlinks and they helped me figure out the correct size and sent me new ones. Definitely an awesome store
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.
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Made in Orem, UT · You break it, we replace it.
385-375-2104