This kit includes 7 components, each built and powder-coated in-house.
Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Front Lower Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Front Upper Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Rear Lower Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Rear Upper Adjustable Control Arms
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Jeep Wrangler JL / JLU 18+ 2pc Heavy-Duty Tie Rod, Drag Link Steering Kit
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Jeep Wrangler JL / JLU 18+ Cruise Series Front Heavy-Duty Adjustable Track Bar
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Jeep Wrangler JL / JLU 18+ Cruise Series Rear Heavy-Duty Adjustable Track Bar
View Component →Fix Wandering, Death Wobble, And Caster Deficiencies for Total Control
Take control of your Jeep Wrangler JL’s suspension and steering with the Cruise Series 12-Piece Kit, an all-in-one upgrade that corrects caster issues, eliminates wandering, prevents rut-following, and reduces death wobble. Designed as a complete suspension solution, this kit replaces every critical hard component—control arms, track bars, and steering—to restore precise handling, stability, and off-road capability. Whether you're driving on highways or tackling rough trails, this kit ensures your Jeep remains stable, centered, and responsive.
This fully adjustable system works for lifts from 0 to 6 inches, ensuring that your suspension is dialed in for optimal alignment, axle positioning, and steering precision.
Key Features Benefits
- Corrects Caster Eliminates Wandering – The adjustable front lower control arms restore proper caster, improving steering feel and straight-line stability, reducing wandering and rut-following.
- Reduces Prevents Death Wobble – The adjustable front track bar and reinforced steering components keep the axle centered and stable, minimizing the risk of violent front-end oscillations.
- Full Axle Alignment Re-Centering for 0-6” Lifts – Adjustable track bars and control arms allow for pinion angle correction, axle positioning, and alignment restoration, reducing driveline vibrations and premature suspension wear.
- Heavy-Duty 2.5-Ton Steering System – Built from aircraft-grade aluminum, this reinforced steering kit eliminates factory tie rod flex, delivering stronger, more precise steering control.
- Recommended Pairing for a Complete Suspension Solution – Pair with the ELS4 End Link Set for enhanced handling, stability, and long-term durability, ensuring a fully optimized suspension system.
How This Kit Solves Common Jeep JL Suspension Issues
The factory Jeep Wrangler JL suspension suffers from insufficient caster angle, which causes wandering, poor steering control, and excessive steering corrections. Lifting the Jeep only worsens these issues, making proper caster correction essential for stability. This 12-piece system completely resolves these issues by restoring caster angle, axle centering, and steering precision, ensuring a smooth, predictable driving experience on any terrain. Additionally, death wobble—caused by loose steering components, misaligned track bars, and improper suspension angles—is greatly reduced or eliminated with this reinforced track bar and steering kit combination.
Durable Two-Stage Powder Coating
Every component undergoes a two-stage powder coating process for maximum protection against rust and wear:
- Zinc Primer Base Coat – Shields metal from corrosion and environmental damage.
- Durable Top Coat – Available in 10 color options for added protection and customization.
Proudly Made in the USA
Manufactured in Orem, UT, this kit is 100% American-made, ensuring superior craftsmanship, rigorous quality control, and support for local industries.
Optional Hardware Upgrade
This kit reuses factory hardware, but if your Jeep has rusted or worn-out bolts, we offer optional Grade 8 hardware kits for a hassle-free installation.
Notes: Some, (not all) factory axle mounts need to be "clearanced" to accept our larger bar. If needed, it is only a minor amount of trimming to be done. This applies to the front track bar only. Please see our Youtube channel for a video addressing this.
Vehicle Fitment: Jeep Wrangler JL 18+ – Provides full suspension and steering adjustability to correct caster, re-center axles, and eliminate instability for a smoother, more controlled ride.
CORE Advantage: Solves common Jeep JL suspension issues, reducing wandering, improving steering response, and helping mitigate death wobble by keeping axles properly aligned and the steering system reinforced.
Adjustability: Control arms fine-tune pinion angle and axle alignment for lifts from 0 to 6 inches, while adjustable track bars and a 2.5-ton aluminum steering kit maintain precise geometry and steering accuracy.
Construction: Heavy-duty steel control arms, DOM tubing track bars, aircraft-grade aluminum steering components, and premium polyurethane bushings provide unmatched strength, durability, and long-term performance.
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 arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.
Front Upper control arms built with 1.625” OD 3/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” long threads.
Rear Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.
Rear Upper control arms built with 1.625” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1” x 14 TPI - 3.25” long threads.
Front Track Bar built with 1.5” OD 5/16” Wall DOM. Polyurethane Bushing 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. Polyurethane Bushing on the fixed end and a Forged Johnny Joints on the adjustable end with 1” x 14 TPI - 2.32” long threads.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2018 - Present |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Construction & Materials
Front Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.
Front Upper control arms built with 1.5” OD 5/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” long threads.
Rear Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.
Rear Upper control arms built with 1.625” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1” x 14 TPI - 3.25” long threads.
Tie Rod and Drag Link made from 2" 7075 Aluminum. Tie Rod and Drag Link use Apex Chassis Forged Rod Ends.
Front Track Bar built with 1.5” OD 5/16” Wall DOM. Polyurethane Bushing 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. Polyurethane Bushing on the fixed end and a Forged Johnny Joints on the adjustable end with 1” x 14 TPI - 2.32” long threads.
| Vehicle | Jeep Wrangler JL / JLU (18–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 | Cruise Series |
| Lift Size | 0" — 6" or 6"+ |
| Hardware | No Hardware or Complete Kit |
| Drag Link Orientation | Factory Mounting (under the knuckle) or Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle) |
| Stabilizer Clamp | Standard Clamp or Hydraulic Assist Clamp |
| 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
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| 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 |
| Drag Link Orientation | Factory Mounting (under the knuckle), Drag Link Flip w/ Tapered Sleeve And Drill Bit (over the knuckle) |
| Stabilizer Clamp | Standard Clamp, Hydraulic Assist Clamp |
| Vehicle | Jeep Wrangler JL / JLU (18–Present) |
| Brand | CORE 4X4 |
| Series | Cruise Series |
| Note to Core4x4: | - |
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