Heavy-Duty Performance for Towing Hauling
Maximize the strength and durability of your Dodge Ram 3500 (2003–2007) with the Tow Series Adjustable Front Upper Control Arms. Specifically engineered for heavy-duty applications like towing and hauling, these control arms provide exceptional stability, strength, and adjustability for the toughest driving conditions. Whether you're tackling rough job sites or hauling heavy loads, these control arms are built to handle it all.
What’s Included
- Tow Series Adjustable Front Upper Control Arms (TOW-D-35-2003-FU2)
Key Features Benefits
- Heavy-duty DOM tubing construction – Built from 1.75” OD DOM Tubing with a 5/16” wall thickness, these control arms offer unmatched strength and durability for high-load applications.
- Rock Jock 4x4 Johnny Joints at both ends – Features fully greaseable and rebuildable joints, delivering increased articulation, long-term reliability, and reduced wear on suspension components.
- Effortless adjustability for precision alignment – Designed to correct wheel centering and caster for lifts from 0 to 6 inches. Threaded with left- and right-hand threads, allowing on-the-truck adjustments without removal. When paired with Tow Series Adjustable Lower Control Arms, these provide full suspension control and optimization. For lifts beyond 6 inches, contact us for additional options.
- Recommended pairing – Optimize your suspension setup by adding the Tow Series Adjustable Front Lower Control Arms (TOW-D-35-2003-FL2) for complete caster and wheel centering control.
Two-Stage Powder Coating for Maximum Protection
To ensure long-lasting durability, our control arms undergo a two-stage powder coating process. A zinc primer base coat enhances rust and corrosion resistance, while the durable topcoat, available in 10 color options, allows you to personalize your build.
Made in the USA
Proudly designed, engineered, and manufactured in Orem, UT, ensuring top-tier craftsmanship, strict quality control, and long-term reliability.
Optional Hardware Upgrade
Installs using factory hardware, but for a smoother installation and enhanced durability, we offer an optional Grade 8 hardware kit, available separately.
Conclusion
The Tow Series Adjustable Front Upper Control Arms (TOW-D-35-2003-FU2) are the ultimate upgrade for Ram 3500 owners looking for superior strength, adjustability, and long-term performance in heavy-hauling and towing applications. Upgrade today and take full control of your Ram 3500’s suspension for unmatched durability and stability!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Ram | 3500 | 2003 - 2007 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
| Vehicle | Ram HD 3500 (03–07) |
| 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"+ |
| Arm Bend | No Bend or Inward Bend |
| Hardware | No Hardware or Complete Kit |
| Series | Tow Series |
| Year Range | 03-07 |
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.
OK
oleg k
Nov 23, 2025
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I recently ordered a set of control arms from Core 4x4, and the entire experience was absolutely top-notch from start to finish. The ordering process was smooth, the parts arrived quickly, and the control arms themselves are extremely high quality—solid construction, great finish, and clearly built to last.
I also want to give a special shout-out to Korby, the guy I spoke with during the process. His customer service was amazing. He went above and beyond to make sure I got exactly what I needed, answered all my questions, and made the whole experience stress-free. You don’t see service like that very often these days.
If you’re looking for high-quality suspension components backed by truly exceptional customer service, I highly recommend Core 4x4. I’ll definitely be buying from them again.
DA
Dastrup Auto
Mar 25, 2019
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I have bought a bunch of sets of arms, track bars and even had custom work done by Core 4x4. Just yesterday, Spence and Cam delivered an awesome cross member they designed and built for me! All of their products have been exceptional! I have personally seen their progression with design changes/updates. They truly take pride in their work and products. Quality control is second to none! They’ve also helped me diagnose issues with different jeeps I’ve had, as well as Dodge/Rams. These guys know their stuff! Really! I trust them whole heartedly and absolutely love their products/quality of work! I’ve referred many people, and will always continue to do so. Keep up the good work Core4x4!
RP
Robin Poole
Jul 26, 2025
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I had several questions before my purchase and Korby helped me with the correct parts to order and recommendations. Outstanding customer service and product knowledge! Can't wait to install them!
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Justin
Mar 24, 2021
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Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
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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Christopher Dami
Jun 26, 2025
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2022 I ordered a 2023 Jeep Wrangler Rubicon in High Velocity yellow. Without any hesitation I knew I was going with Core 4x4’s 16pc Camp series suspension, powder coated in yellow. Compliments were a given from any and everyone that looked under my jeep. So beefy, I may have left some yellow paint on the rocks from Maine to Florida, but no bends or breaks. Customer service has been perfect each and every time I have needed something. Their warranty is top notch! Their communication is also wonderful. Might upgrade to the Crawl Series control arms where the Johnny joints are on both sides. Great all around company and a great team to troubleshoot your issue and come to a conclusion. Nothing bad to say about this company. Just love this suspension.
CM
Craig MacIver
May 27, 2025
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Got the CAMP version of adjustable control arms and track bars for our 03 TJ with a 3” lift and 33x10.5 KO 2’s.
Super beefy bars, great fit and adjustability.
Friendly advice and support from Korby at CORE 4X4. Good follow up as well.
The ride quality is great as well as the handling. I think it all looks pretty good as well.
