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.
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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.
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niceguyr1
Mar 24, 2023
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I purchased upper and lower adjustable arms for my WJ and lowers were missing the spacers. I didn't know until 3 months later when I was installing them. With absolutely zero hassles they quickly sent me the missing spacers. Fantastic product and service! Huge thank you guys for the awesome service and parts!!! Customer service is quickly becoming a lost commodity and you guys gave me hope that it's still alive and well, you just have to buy from the right people... Thanks again for going above and beyond! 👍👍
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Adam
Oct 24, 2025
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I couldn't have been more excited for the initial unboxing of these new Core 4x4 UCA's!
They appear to be so well built and just a true quality product.
Installation was a breeze and the initial testing with the forklift appears to have given me some additional flex with less binding on the rest of the components now that the geometry is back properly aligned.
Time will tell how they hold up on my near future off-road adventures but I don't have any doubt that they are up to the task!
JS
Jon Stempien
May 27, 2025
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Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
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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.
DR
David Rogers
Aug 25, 2025
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Ive had the front adjustable control arm kit in bright green for my 1996 ZJ.
Ive had the kit for about a year now and i have to say, im extremely impressed, over 1000 miles off-road and roughly 20,000 miles on the highway. These control arm kits for any vehicle built by core 4x4 are well worth the money, just be aware thereight be some minor scatches or chips from shipping ( but who should care about that if you're beating the crap out of em' they way they were built and designed for)
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Travis Walker
Sep 24, 2025
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I have nothing but great things to say about this company and their customer service. If you like American made products backed by warranty and amazing customer support, this is the company for you. I have a Lexus GX470 and love their rear control arms.
CL
Cade Leith
Mar 23, 2024
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Have full upper/lower CA set on both front and rear axles on a 96 ZJ. These are the rubber bushing sets not joint sets. I have beat the hell out it in the Nevada desert for 2 years and has been great. I don’t go fast but I do articulate suspension a lot. Super solid and haven’t any issues. Just inspected the entire set recently due to some banging under it. Turns out the banging is lower rear shock bushings. Inspected each CA along the way nothing. Aside from dirt and obviously winter roads and what not still in excellent condition, bushings are solid like the day they were installed. I’ll add that I’m about tapped on a short arm at 4.25(less with settle) so the front CA’s get beat on just from that, still they’re like new. Paint is great condition, this set is red. I would definitely buy again. Another plus for me, Utah isn’t local necessarily, but it’s nice to support businesses closer to me.
