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.
RC
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.
MS
Mr. Smith
Nov 23, 2025
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Have yet to get to try them but I bought some upper, and then later , lower control arms for my 03 rubicon. The pricing is very fair, so fair I was hesitant to even purchase. When the product came in I was happily mistaken. These are some beefy units with an incredible warranty! I’m very excited! I went with the “Camp”series as I mostly daily it.
I have trouble with the shipping at times when I ordered but Corby is quick to notice things and help communicate the solution. Looking forward to buying more parts!
JM
Jason Mitchell
Dec 8, 2025
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Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
LS
Leonard Smith
Jan 22, 2026
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I don’t write reviews often, but Core 4x4 absolutely earned this one.
I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts.
That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed.
The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots.
Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right.
If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.
SH
Shawn Hooten
Apr 27, 2025
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Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
TM
T Mac
Mar 23, 2026
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CORE 4X4 Company produces/manufactures exceptional products. My rear upper and lower control arms and rear track bar were powder coated custom Fox “Shock Orange” for my 2024 Bronco Wildtrak. OEM looks minimal compared to the CORE 4X4 control arms. Plus they’re adjustable, serviceable and rebuildable. Shipment was very fast and packaging used custom foam wrapped around the arms and heavy duty boxes. Not even UPS could damage. Korby L. was great to work with and responded quickly with emails and product information. Great products. Great people from the State of Utah. All Made in the USA. 5 Stars!!!
OA
Owen Adams
Sep 24, 2025
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These guys are awesome I messed up my address on my order somehow and they were so so helpful Korby was right there every step to a solution very communicative and respectful I will definitely be ordering parts with them in the future!
JM
Jay Miller
Jul 26, 2025
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I purchased a upper and lower set of control arms from core 4x4 they came early then expected and seem to be very nice quality I ran into a complication installing them and emailed them my question I was expecting to get the response maybe the next day because it was after hours I got a response in about a few minutes which allowed me to finish the project that day I super appreciate that, the products are good strong lifetime warranty and their customer service is top notch
