Optimized Rear Suspension Control
Upgrade the stability, alignment, and suspension performance of your Jeep Wrangler JK with the Cruise Series Rear Upper Control Arms. Designed to enhance durability and improve ride quality, these control arms outperform stock components, offering better strength and adjustability for lifted vehicles. If you're experiencing driveline vibrations, poor pinion angles, or rear-end instability, these adjustable rear upper control arms provide a crucial upgrade to restore proper suspension geometry.
What’s Included in the Kit?
- Cruise Series Rear Upper Control Arms (CRS-J-JK-RU2)
Key Features and Benefits
- Heavy-Duty Steel Tubing Construction – Built from durable steel tubing to handle the toughest off-road conditions while maintaining on-road comfort.
- Fully Adjustable for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, allowing precise pinion angle correction and rear axle re-centering.
- Improves Drivability Reduces Wear – Helps address driveline vibrations, reducing stress on suspension components and extending tire life.
- Tapered Polyurethane Bushings – Designed to provide smooth articulation, improved ride quality, and long-lasting performance.
- Complete Rear-End Alignment Solution – For maximum control and proper geometry, pair with Cruise Series Rear Lower Control Arms (CRS-J-JK-RL2).
For lifts beyond 6 inches, contact us for custom solutions.
Durable Two-Stage Powder Coating
All control arms undergo a two-stage powder coating process to enhance longevity and corrosion resistance: Zinc primer base coat – Provides superior rust protection. Durable top coat – Available in 10 color options for added personalization.
Proudly Made in the USA
Manufactured in Orem, UT, the Cruise Series Rear Upper Control Arms are built to the highest American standards, ensuring quality, reliability, and performance.
Effortless Installation
Designed for bolt-on installation using factory hardware. If dealing with rusted or worn-out bolts, we offer optional Grade 8 hardware kits separately for a seamless upgrade.
In Conclusion
The Cruise Series Rear Upper Control Arms are a must-have upgrade for Jeep Wrangler JK owners looking to optimize rear axle alignment, eliminate driveline vibrations, and improve suspension articulation. When paired with Rear Lower Control Arms, this setup provides a fully adjustable rear suspension solution for lifted Jeeps.
Upgrade today and take control of your Jeep’s performance!
Ideal use:
Cruise Series is best for daily driving, light off-road, and weekend trail use. Balanced for comfort and capability without overbuilding for extreme terrain.
Not sure which series fits your needs? Contact us for guidance.
- Alignment recommended after install.
- Install difficulty: moderate. Basic mechanical skills recommended.
- Estimated install time: 4–8 hours depending on experience.
- Some trimming may be required on factory axle mounts (front track bar). See our YouTube channel for guidance.
- Install videos and support available. Check product Description for links.
- Designed to reuse factory hardware. Upgrade available if yours is worn or missing.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2007 - 2018 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| 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 |
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
Reviews from Google
Not Sure Which Tier? Compare All Three.
Same American steel. Same warranty. Same quality. Choose by how you use your vehicle.
| CRUISE VIEWING | CAMP | CRAWL | |
|---|---|---|---|
| Tagline | "Daily Confidence" | "Weekend Ready" | "Trail Domination" |
| Joint Type | Polyurethane Bushings | Johnny Joint (Single) | Double Johnny Joint |
| Articulation | ~30% | ~65% | ~95% |
| Tubing | 1.625" OD / 3/16" Wall DOM | 1.75" OD / 5/16" Wall DOM | 1.75" OD / 5/16" Wall DOM |
| Price | $214 | $302 | $439 |
| Maintenance | Zero | Periodic grease | Periodic grease |
| Best For | Daily driver, light trails | Weekend warrior, moderate off-road | Hardcore builder, competition |
| Warranty | Lifetime ✓ | Lifetime ✓ | Lifetime ✓ |
Why Builders Choose Core 4x4
The only aftermarket suspension brand with a tiered product system
vs. MetalCloak
One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.
vs. Teraflex
Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.
vs. Clayton / Budget
Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? Only Core 4x4.
Accessories & Add-ons
Jeep Wrangler JK / JKU 07-18 8pc Cruise Series Adjustable Control Arm Kit
$ 892.45
Jeep Wrangler JK / JKU 07-18 2pc Cruise Series Rear Lower Adjustable Control Arms
$ 251.95
Jeep Wrangler JK / JKU 07-18 4pc Cruise Series Rear Adjustable Control Arm Kit
$ 472.45
