This kit includes 2 components, each built and powder-coated in-house.
Maximize Your Jeep’s Performance and Handling
Upgrade your Jeep Gladiator JT’s front suspension with the Crawl Series Front Control Arms Set, engineered to solve factory alignment challenges and enhance your off-road experience. Designed for model years 2020-Present, this comprehensive set includes a pair of Front Lower Control Arms (CRL-J-JT-FL2) and a pair of Front Upper Control Arms (CRL-J-JT-FU2). Together, they provide the ultimate solution for addressing factory caster deficiencies and re-centering the front axle, while offering exceptional flexibility for lifts from 0 to 6 inches. Pairing with our Crawl Series Front Track Bar or Rear Control Arms creates a complete suspension upgrade for unmatched performance.
Detailed Key Features and Benefits
- Enhanced Alignment Correction – Addresses factory caster deficiencies and improves drivability, eliminating wandering and rut-following tendencies. Perfect for correcting geometry on vehicles with lifts from 0 to 6 inches.
- Heavy-Duty Construction – Built with 1.75” OD DOM tubing for the lowers and 1.5” OD DOM tubing for the uppers, both with 5/16” wall thickness, ensuring unmatched strength and durability on tough trails.
- Johnny Joints for Maximum Flexibility – Equipped with Rock Jock Johnny Joints at both ends for superior articulation and smoother movement, allowing for bind-free performance in extreme off-road conditions.
- Complete Suspension Solution – Pair this Front Control Arms Set with our Crawl Series Rear Control Arms Set to optimize axle alignment, articulation, and overall performance, creating a fully capable suspension system ready for any terrain.
Engineered for Flexibility and Precision
This set is designed to solve factory caster issues, particularly noticeable with smaller lifts, while remaining compatible with taller lifts. When paired with our Front Track Bar or Rear Control Arms, you’ll experience the ultimate in axle alignment, articulation, and overall suspension performance.
Premium Two-Stage Powder Coating
All components undergo a rigorous two-stage powder coating process, featuring a zinc primer base for corrosion resistance and a durable top coat in your choice of 10 colors, ensuring long-lasting protection and customization.
Made in the USA
Proudly manufactured in Orem, UT, our Crawl Series Front Control Arms are built to the highest standards of American engineering, offering premium quality and durability you can trust.
Optional Hardware Upgrade
Designed for straightforward installation using factory hardware, with optional Grade 8 hardware kits available separately to handle rusted or stubborn bolts.
Vehicle Fitment: Jeep Gladiator JT 20+ – Resolves factory caster issues, improves handling, and ensures optimal suspension geometry for lifted and stock-height setups.
CORE Advantage: Enhances steering stability, eliminates wandering, and increases axle articulation, delivering smoother on-road performance and superior off-road capability.
Adjustability: Fully adjustable for lifts from 0 to 6 inches, allowing for precise caster correction, axle re-centering, and optimized suspension alignment.
Construction: Built with heavy-duty 1.75” OD DOM tubing for lowers and 1.5” OD DOM tubing for uppers, both with 5/16” wall thickness, featuring 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.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Gladiator | 2020 - Present |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Construction & Materials
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 Joints on the adjustable end with 1” x 14” TPI - 2.32” 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 | Front Upper, Front Lower, Front |
| Mounting Style | Bolt-On |
Reviews of Core 4x4
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Accessories & Add-ons
Jeep Gladiator JT 20+ 8pc Crawl Series Adjustable Control Arm Kit
$ 1,611.70
Jeep Gladiator JT 20+ 2pc Crawl Series Front Lower Adjustable Control Arms
$ 503.95
Jeep Gladiator JT 20+ 2pc Crawl Series Front Upper Adjustable Control Arms
$ 314.95
Jeep Gladiator JT 20+ 10pc Crawl Series Adjustable Control Arm, Track Bar Kit
$ 2,047.45
Jeep Gladiator JT 20+ 12pc Crawl Series Adjustable Control Arm, Track Bar, Steering Kit
$ 3,202.45
Jeep Gladiator JT 20+ 16pc Crawl Series Adjustable Control Arm, Track Bar, End Link Kit
$ 3,727.45Specifications
| 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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