Superior Comfort and Flexibility
Upgrade your Toyota 4Runner's suspension system with the Camp Series Rear Upper Control Arms, engineered for model years 2003-Present. These control arms offer improved on-road comfort and off-road performance, delivering superior durability and flexibility over factory components.
What’s Included in the Kit?
- Camp Series Rear Upper Control Arms – CMP-T-4R-03-RU2
Key Features and Benefits
- Robust Construction for Strength and Performance – Built from DOM Tubing with a 5/16” wall thickness, the Camp Series Rear Upper Control Arms are designed to excel under demanding conditions.
- Johnny Joint Tapered Polyurethane Bushing – A Johnny Joint at the adjusting end ensures superior articulation and flexibility, while our unique tapered polyurethane bushing at the axle end dampens vibrations for smoother performance.
- Critical Adjustability for Precise Alignment – Fully adjustable to accommodate lifts from 0 to 6 inches, allowing for accurate alignment correction and rear axle re-centering.
- Optimized Pinion Angle – Proper pinion angle adjustments help avoid driveline vibrations, making these control arms essential for lifted vehicles.
- Complete Rear Suspension Solution – Pair them with our Rear Lower Control Arms for a fully optimized rear-end solution, maximizing control and stability.
Two-Stage Powder Coating for Durability
Every control arm undergoes a rigorous two-stage powder coating process: Zinc primer base coat ensures exceptional corrosion resistance. Durable top coat, available in 10 color options, provides long-lasting protection while giving your 4Runner a customized appearance.
Proudly Made in the USA
Crafted at our Orem, UT facility, the Camp Series Rear Upper Control Arms reflect the highest standards of American manufacturing.
By sourcing materials locally and overseeing every step of production, we ensure exceptional quality and reliability.
Optional Hardware Upgrade
Installation is straightforward with factory hardware, and we also offer optional Grade 8 hardware kits for replacing rusted or stubborn bolts, ensuring a hassle-free setup.
In Conclusion
Upgrade your Toyota 4Runner with the Camp Series Rear Upper Control Arms for enhanced suspension flexibility, precise alignment, and long-lasting durability. Whether you're looking for off-road articulation or on-road comfort, these control arms deliver unmatched performance.
Upgrade today and experience the CORE 4X4 difference!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Toyota | 4Runner | 1996 - 2024 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
| Vehicle | Toyota 4Runner (96–24) |
| 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 |
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
Reviews from Google
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132 reviews
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Ajay Paynter
Mar 4, 2026
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Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
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Ryan Colligan
Mar 4, 2026
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I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres
Jan 15, 2026
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Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
CL
Colten Lockwood
Mar 25, 2019
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Recieved warrenty exchanges for my control arms last night couldnt be happier!!! Lets talk about the arms tho! Great quality arms in multiple styles and colors!!! I purchased the teir 3 short arns for my 98 xj. I can say that they setoff nicely so my 35 inch tires do not rub! As long as you can get a photo or video of broken hardware core will take care of you. The body of the arm is bulletproof. However make sure to maintain and grease the joints regularly as with any greaseable joint and they shouldkast forever. I had a few problems arise a year after purchase and after some troubleshooting spence was able to help get me the correct parts to get back on the road. I recommend this setup to any and all jeepers looking to get away from the stock arm setup. Alltogether i am Very happy with the performace of my control arms!!!! Mechanic and bodyman of 12 years and my first choice for quality control arms!!
MP
Mirko Pompili
Mar 19, 2026
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I want to share a truly positive experience.
I ordered a car kit consisting of two packages, but unfortunately one was lost during shipping with UPS. The situation could have become complicated... but it didn't.
The company manager was extremely helpful and professional: he personally followed up on the situation and did everything he could to resolve the issue, even sending me the package again without hesitation.
It's rare to find such attentive and reliable customer service these days.
My sincere congratulations on your professionalism and commitment: that makes all the difference.
FS
Fernando Salazar
Aug 25, 2025
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Great quality control arms and great customer service. Korby has been a great help at answering my questions on some issues I’ve been having with installation!
BW
Brian Wadsworth
Jun 26, 2025
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Amazing product! Shipping was quick, packaging was great and support was outstanding!!
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Dean Tk421
Feb 21, 2026
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I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
SG
Sal Giordano
Sep 24, 2025
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I want to take the time to share my experience with Core 4x4.
I have a 2004 Jeep Wrangler and was looking to upgrade some suspension parts. I went with Core 4x4 upper & lower adjustable control arms and a front adjustable track bar. Everything arrived quickly, and right out of the box I was impressed with the quality and craftsmanship.
I had a few questions during installation (measurements and torque specs), and I spoke with Korby on a couple of occasions. Not only did he send me detailed instructions, but he also shared an installation video specific to the part and vehicle I was working on, something you don’t get from many companies.
The control arms fit perfectly, look great, and perform exactly as I hoped. I did run into an issue with the front track bar touching the front diff. When I reached out, Korby had me send pictures and then immediately offered two solutions: his bar guy could make a different bend and send it out to me, or I could get a full refund. His response honestly blew me away. As much as I wanted to run the Core 4x4 track bar, I chose the refund. Korby sent me a prepaid shipping label right away, no hassle.
My experience with Core 4x4 has been excellent. Korby was extremely understanding, communicative, and helpful every step of the way. The parts I received were high quality, and the customer service was second to none.
I would absolutely recommend Core 4x4 10 out of 10 times and will be using them again. Just a great American company with awesome people who truly care about their customers.
Thank you Korby, and thank you Core 4x4!
EL
Eric Labrum
May 27, 2025
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Best customer service I have ever experienced. They are my go to source do to quality and service
