This kit includes 6 components, each built and powder-coated in-house.
Jeep Gladiator JT 20+ 2pc Crawl Series Front Lower Adjustable Control Arms
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Jeep Gladiator JT 20+ 2pc Crawl Series Front Upper Adjustable Control Arms
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Jeep Gladiator JT 20+ 2pc Crawl Series Rear Lower Adjustable Control Arms
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Jeep Gladiator JT 20+ 2pc Crawl Series Rear Upper Adjustable Control Arms
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Jeep Gladiator JT 20+ Crawl Series Front Heavy-Duty Adjustable Track Bar
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Jeep Gladiator JT 20+ Crawl Series Rear Heavy-Duty Adjustable Track Bar
View Component →Maximize Your Jeep Gladiator JT’s Suspension Performance with the Crawl Series Complete Kit
Designed for ultimate on-road comfort and extreme off-road performance, the Crawl Series Complete Kit for Jeep Gladiator JT provides unparalleled control over your vehicle’s suspension. Whether tackling rugged trails or cruising on highways, this all-inclusive kit ensures superior articulation, adjustability, and durability to meet any challenge.
Key Features and Benefits
- Unparalleled flexibility and articulation – Johnny Joints at both ends of every control arm and track bar provide maximum articulation and smooth movement across the most challenging terrains.
- Incredible drivability – Improves road handling by correcting factory suspension deficiencies, eliminating wandering, flighty steering, and following ruts for a smooth, controlled ride.
- Superior construction – Built from high-strength DOM tubing with a 5/16” wall thickness, these components withstand the harshest off-road environments while maintaining reliability on the road.
- Enhanced suspension geometry – Re-centers axles, optimizes caster and pinion angles, and corrects alignment issues for maximum stability and balanced performance.
Elevated Control and Stability
The Crawl Series Complete Kit is engineered to tackle common suspension challenges, such as death wobble, axle misalignment, and poor drivability. With optimized alignment and advanced suspension geometry, you’ll experience smoother handling, reduced stress on components, and improved overall control.
Durable Two-Stage Powder Coating
Each component undergoes a zinc primer base coat for corrosion resistance, followed by a top coat available in 10 colors for a personalized look.
Optional Hardware Upgrade
Designed for straightforward installation using factory hardware, with optional Grade 8 hardware kits available for rusted or stubborn bolts.
Vehicle Fitment: Jeep Gladiator JT 20+ – This kit revolutionizes suspension performance, delivering precise axle alignment, superior articulation, and a controlled, confidence-inspiring ride whether you're off-road crawling or highway cruising.
CORE Advantage: The most complete suspension upgrade available, this kit maximizes articulation, handling, and adjustability, ensuring your Gladiator JT can conquer extreme terrain while maintaining stability, balance, and on-road drivability.
Adjustability: Fully adjustable to fit lifts from 0 to 6 inches, these components correct axle positioning, optimize caster and pinion angles, and eliminate suspension misalignment issues, providing a smoother, more controlled driving experience.
Construction: Built from 1.75” OD DOM lower control arms, 1.5” OD DOM upper control arms, and 1.5” OD DOM track bars, all with 5/16” wall thickness, this kit is engineered for unmatched durability, extreme 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, 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.
Front Track Bar built with 1.5” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1” x 14 TPI - 2.32” long threads.
Rear Track Bar built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends 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.
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.
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.
Front Track Bar built with 1.5” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joints on the adjustable end with 1” x 14 TPI - 2.32” long threads.
Rear Track Bar built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends 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 |
| Lift Size | 0" — 6" or 6"+ |
| Hardware | No Hardware or Complete Kit |
| Rear Track Bar Clearance Bend For Spare Tire | Straight Bar or Clearance Bend |
| Placement on Vehicle | Front Upper, Front Lower, Rear Upper, Rear Lower, Front, 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.
Reviews of Core 4x4
Suggested Products
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+ 2pc Crawl Series Rear Lower Adjustable Control Arms
$ 498.70
Jeep Gladiator JT 20+ 2pc Crawl Series Rear Upper Adjustable Control Arms
$ 472.45
Jeep Gladiator JT 20+ Crawl Series Front Heavy-Duty Adjustable Track Bar
$ 330.70
Jeep Gladiator JT 20+ Crawl Series Rear Heavy-Duty Adjustable Track Bar
$ 330.70
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 |
| Rear Track Bar Clearance Bend For Spare Tire | Straight Bar, Clearance Bend |
| Vehicle | Jeep Gladiator JT (20–Present) |
| Brand | CORE 4X4 |
| Series | Crawl Series |
| Note to Core4x4: | - |
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