This kit includes 3 components, each built and powder-coated in-house.
Apex Chassis Jeep Wrangler JK & Grand Cherokee HD Ball Joint Kit Includes: 2 Upper & 2 Lower
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Jeep Wrangler JK / JKU 07-18 2pc Camp Series Front Lower Adjustable Control Arms
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Jeep Wrangler JK / JKU 07-18 2pc Camp Series Front Upper Adjustable Control Arms
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Enhance your Jeep Wrangler JK's handling, stability, and off-road capability with the Camp Series Front Control Arms Set. Designed for 2007-2018 Jeep Wrangler JK models, this set includes both Front Upper Control Arms (CMP-J-JK-FU2) and Front Lower Control Arms (CMP-J-JK-FL2), providing a comprehensive suspension upgrade. Whether you’re conquering rough terrain or cruising the highway, these control arms deliver superior strength, flexibility, and precise alignment adjustments to optimize your driving experience.
Key Features Benefits
- Corrects caster angle to prevent wandering and improve steering return-to-center.
- Recenters front axle for better alignment and improved handling.
- Heavy-duty construction with 1.75” OD DOM Tubing for superior durability.
- Accommodates lifts from 0 to 6 inches, ensuring proper geometry and alignment.
- Johnny Joints for increased articulation and polyurethane bushings for vibration dampening.
- Two-stage powder coating for corrosion resistance, available in 10 colors.
- Proudly made in the USA with high-quality materials and precision engineering.
- Recommended pairing: Camp Series Front Track Bar (CMP-J-JK-FTB1) for a fully optimized front suspension setup.
Caster Correction Axle Centering for Better Drivability
When lifting a Jeep Wrangler JK, the front axle naturally shifts off-center, and the caster angle decreases, leading to poor steering response, increased wandering, and a lack of stability. Correcting these issues is crucial for maintaining proper drivability.
Caster Angle Restoration
The lower control arms play a key role in regaining caster, helping the front tires return to center after a turn and preventing the Jeep from following road ruts or wandering. Proper caster correction improves straight-line stability and reduces steering effort, making lifted vehicles safer and more predictable to drive.
Axle Centering Alignment
The upper and lower control arms work together to recenter the front axle, ensuring proper wheel positioning for correct steering geometry and minimized tire wear. When paired with our Camp Series Front Track Bar, you achieve full front suspension correction, eliminating handling inconsistencies caused by lifting your Jeep.
Built for Strength and Performance
Crafted from heavy-duty DOM Tubing with a .313" wall thickness, these control arms are engineered for extreme durability. The design features: Johnny Joint at the adjusting end for maximum articulation and flexibility off-road. Tapered polyurethane bushing at the axle end for vibration dampening, reducing road noise while maintaining a smooth ride.
This combination delivers the best of both worlds—enhanced articulation for off-road performance and exceptional road comfort.
Adjustability for Perfect Alignment
Our adjustable control arms accommodate lifts from 0 to 6 inches, allowing precise adjustments to caster, pinion angles, and axle positioning. With full adjustability, you restore the proper geometry lost during a lift installation, improving your Jeep’s handling, reducing stress on suspension components, and maximizing tire longevity.
For lifts beyond 6 inches, contact us for additional options and support.
Resilient Two-Stage Powder Coating
To ensure long-term durability, our control arms undergo a two-stage powder coating process, providing superior corrosion resistance and an eye-catching finish: Zinc Primer Base Coat – Protects against rust and environmental wear. Top Coat in 10 Custom Colors – Allows you to customize the look of your suspension while adding an extra layer of durability.
Proudly Made in the USA
Every Camp Series product is manufactured in our Orem, UT facility, ensuring the highest standards of quality and craftsmanship. By sourcing raw materials locally and maintaining in-house production, we deliver superior products while supporting American manufacturing.
Optional Hardware Upgrade
These control arms are designed to install easily using factory hardware. However, for rusted or stubborn bolts, we offer optional new Grade 8 hardware kits (available separately) to ensure a seamless installation.
Take control of your suspension and upgrade your Jeep Wrangler JK today!
Vehicle Fitment: Jeep Wrangler JK 07-18 – Precision-engineered for all trims to enhance suspension control, handling, and off-road capability.
CORE Advantage: Restores proper caster angle to enhance steering response, reduce wander, and improve high-speed stability for a smoother, more controlled ride.
Adjustability: Fully adjustable to accommodate 0–6” lifts, allowing precise axle alignment, caster correction, and optimized suspension geometry.
Construction: Made from heavy-duty 5/16” wall DOM tubing with polyurethane bushings and Johnny Joints for durability, comfort, and off-road flexibility.
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. A Polyurethane Bushing on the fixed end and a Forged Johnny Joints 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.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2007 - 2018 |
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. A Polyurethane Bushing on the fixed end and a Forged Johnny Joints 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.
| 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 | Camp Series |
| Lift Size | 0" — 6" or 6"+ |
| Hardware | No Hardware or Complete Kit |
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| Placement on Vehicle | Front Upper, Front Lower, Front |
| Mounting Style | Bolt-On |
Reviews of Core 4x4
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Jeep Wrangler JK / JKU 07-18 2pc Camp Series Front Lower Adjustable Control Arms
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Jeep Wrangler JK / JKU 07-18 2pc Camp Series Front Upper Adjustable Control Arms
$ 309.70Accessories & Add-ons
Jeep Wrangler JK / JKU 07-18 8pc Camp Series Adjustable Control Arm Kit
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Jeep Wrangler JK / JKU 07-18 2pc Camp Series Front Lower Adjustable Control Arms
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Jeep Wrangler JK / JKU 07-18 10pc Camp Series Adjustable Control Arm, Track Bar Kit
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Jeep Wrangler JK / JKU 07-18 12pc Camp Series Adjustable Control Arm, Track Bar, Steering Kit
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Jeep Wrangler JK / JKU 07-18 16pc Camp Series Adjustable Control Arm, Track Bar, Steering, End Link Kit
$ 3,097.45Specifications
| 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. |
| Lift Size | 0" — 6", 6"+ |
| Hardware | No Hardware, Complete Kit |
| Brand | CORE 4X4 |
| Series | Camp Series |
| Note to Core4x4: | - |
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
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