This kit includes 3 components, each built and powder-coated in-house.
Maximize Your Jeep Grand Cherokee WK’s Suspension Performance
Upgrade your Jeep Grand Cherokee WK (2005-2010) with the Crawl Series Rear Control Arm and Track Bar Kit, a premium suspension upgrade designed to provide superior durability, off-road articulation, and on-road comfort. This kit replaces factory components with heavy-duty adjustable control arms and a rear track bar, ensuring precise axle alignment, optimal suspension geometry, and improved handling—essential for lifted vehicles tackling rugged terrain.
Key Features and Benefits
- Unmatched strength durability – Built from .313" wall DOM tubing, these components provide exceptional resilience and long-lasting performance in extreme off-road conditions.
- Full suspension adjustability – Designed to accommodate lifts from 0 to 6 inches, allowing for pinion angle correction, rear axle centering, and precise suspension tuning.
- Rock Jock Johnny Joints for maximum flexibility – Equipped with Johnny Joints at both ends, these control arms and track bar provide superior articulation and responsiveness, ensuring smooth suspension movement over uneven terrain.
- Precision-engineered on-vehicle adjustability – Featuring left and right-hand threaded adjusters, allowing fine-tuning without removal, making suspension modifications faster and easier.
- Optional bent upper control arms for additional clearance – Need extra room around your gas tank skid plate? Opt for the bent rear upper control arms to optimize clearance and fitment.
Durable Two-Stage Powder Coating
Every component in this kit undergoes a two-stage powder coating process, featuring a corrosion-resistant zinc primer base coat and a top coat available in 10 colors. This ensures maximum protection against harsh elements while allowing you to customize the look of your suspension components.
Proudly Made in the USA
Manufactured in Orem, UT, our Crawl Series Rear Control Arm and Track Bar Kit is built to top-tier American craftsmanship standards, ensuring superior reliability, precision, and strength.
Optional Hardware Upgrade
This kit is designed for straightforward bolt-on installation using factory hardware. If you’re dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits to ensure a seamless setup.
Vehicle Fitment: Jeep Grand Cherokee WK 05-10 – Enhances suspension geometry, axle centering, and handling for improved drivability and off-road capability.
CORE Advantage: Strengthens rear suspension, reduces axle shift and body roll, and improves stability and articulation with Johnny Joints at both ends for a smoother ride.
Adjustability: Compatible with 0 to 6-inch lifts, allowing precise pinion angle tuning, rear axle centering, and optional bent upper control arms for extra clearance.
Construction: Built from 5/16” wall DOM tubing, with Johnny Joints for maximum flexibility, ensuring superior durability and articulation in extreme conditions.
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 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 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends 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 | Grand Cherokee | 2005 - 2010 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Construction & Materials
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 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends 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 Grand Cherokee WK (05–10) |
| 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. |
| Lift Size | 0" — 6" or 6"+ |
| Hardware | No Hardware or Complete Kit |
| Series | Crawl Series |
| Gas Tank Skid Clearance Bend | No Bend or Clearance Bend |
| Placement on Vehicle | Rear Upper, Rear Lower, 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 |
| Gas Tank Skid Clearance Bend | No Bend, Clearance Bend |
| Vehicle | Jeep Grand Cherokee WK (05–10) |
| Brand | CORE 4X4 |
| Series | Crawl Series |
| Note to Core4x4: | - |
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