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CORE 4X4 · Suspension SKU: TOW-D-35-2003-FS4

Ram HD 3500 4pc Kit

Adjustable control arms — front upper + lower · fits 0–6″+ lift

Dodge Ram 3500 03-07 4pc Tow Series Front Adjustable Control Arm Kit
$813.96 $924.95 Save $111

TOWN from $490 · TRAIL $601

$ 813.96 813.96 USD $ 924.95

$ 924.95

Save $ 110.99

Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
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COLOR Pick yours
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Mounting hardware included
Talk to an Expert: 385-375-2104
Lift Size
What size lift will the parts be used on?
Arm Bend
Inward bend is for extra tire clearance while turning and running oversized tires on stock wheels.
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CORE 4X4 · Suspension

Ram HD 3500 4pc Kit

Dodge Ram 3500 03-07 4pc Tow Series Front Adjustable Control Arm Kit

Adjustable control arms — front upper + lower · fits 0–6″+ lift

Does not fit your Dodge/Ram HD 5500 Shop parts that fit ›

COLOR Pick yours

Build Your Kit

  • Vehicle
  • Brand
  • Color
  • Lift Size
  • Arm Bend
  • Hardware
  • Series
  • Year Range
  • Note to Core4x4:

$ 813.96 813.96 USD $ 924.95

$ 924.95

Save $ 110.99

Select Color to see price and add to cart.

Mounting hardware included
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Talk to an Expert: 385-375-2104
Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline

Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
You break it, we replace it Warranty on non-wear items
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Product Details

Make Model Submodel Years
Dodge/Ram 3500 2003–2007

  • Vehicle Fitment: Compatible with Dodge Ram 3500 03-07, this front control arm set enhances stability, caster correction, and axle positioning for heavy towing and hauling.

  • CORE Advantage: Eliminates steering instability, improves alignment, and reinforces suspension strength under extreme loads.

  • Adjustability: Fully adjustable for lifts up to 6", allowing precise caster correction, pinion angle adjustments, and axle centering to maintain proper suspension geometry and steering response.

  • Construction: Built from 5/16” wall 1.75” OD DOM tubing, these control arms feature Rock Jock Johnny Joints at both ends for maximum articulation, durability, and reduced suspension bind. Fully greaseable and rebuildable for long-term performance in extreme conditions.

  • 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 Upper Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

Front Lower Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Forged Johnny Joint (Double Threaded)Joints
1.75" ODTubing
5/16" DOMWall
Periodic greasingMaintenance

Construction & Materials

Dodge Ram 3500 03-07 2pc Tow Series Front Lower Adjustable Control Arms

Front Lower control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Dodge Ram 3500 03-07 2pc Tow Series Front Upper Adjustable Control Arms

Front Upper control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

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
Placement on Vehicle Front Upper, Front Lower, Front
Mounting Style Bolt-On

Complete Control for Towing Hauling

Take full control of your Dodge Ram 3500 (2003–2007) suspension with the Tow Series Adjustable Front Control Arm Set. Designed for heavy-duty towing, hauling, and off-road durability, this set includes both adjustable front upper and lower control arms to provide maximum strength, stability, and alignment control. Whether you’re towing heavy loads or upgrading your truck’s performance, these control arms offer unmatched adjustability to fine-tune your axle position, caster, and pinion angle for optimal handling and drivability.

Key Features Benefits

  • Full Axle Alignment Control – Provides complete adjustability for axle positioning, pinion angle, and caster, ensuring proper suspension geometry and eliminating driveline vibrations.
  • Heavy-Duty DOM Tubing Construction – Built from 1.75” OD DOM tubing with a 5/16” wall thickness, these control arms offer superior 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 suspension wear.
  • Effortless Adjustability – Threaded with left- and right-hand threads, allowing for on-the-truck adjustments without removal. Accommodates lifts from 0 to 6 inches.

Recommended Pairing

For complete control over axle positioning and drivability, pair with the Front Track Bar (D-35-2003-FTB1).

Optional Inward Bend for Larger Tires

For trucks running larger tires that experience rubbing against the control arms, we offer an optional inward bend upgrade. This design modification provides additional clearance while maintaining full strength and stability. If your tires currently rub, we strongly recommend selecting this upgrade for a better fit and improved articulation.

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 provides advanced rust and corrosion resistance, followed by a durable topcoat available in 10 color options, allowing 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 with Cam Bolt Delete Kit

This set installs using factory hardware, but for a smoother installation and enhanced durability, we offer an optional Grade 8 hardware kit with a cam bolt delete kit, available separately. This upgrade eliminates weak factory cam bolts, ensuring proper alignment retention and preventing unwanted shifting under load—a crucial improvement for vehicles that tow or haul heavy loads regularly.

Conclusion

The Tow Series Adjustable Front Control Arm Set (TOW-D-35-2003-FS4) is the ultimate upgrade for Ram 3500 (2003–2007) 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!


Each rebuild kit includes all necessary components to replace and restore wearable parts.

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

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Store reviews on Google

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5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
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Sebastian Oct 24, 2025
★ ★ ★ ★ ★ Google
Great products they sell, got a crawl series long arm kit for my xj and it has held up quite nice, they are beefy, and for what ever reason they fail it has a great warranty with a customer service to match, when someone asks what control arm kit to buy I always recommend core 4x4
AM
Adam M Sep 24, 2025
★ ★ ★ ★ ★ Google
First time buying from Korby @ Core 4x4 and it’s being nothing short of a great experience. I bought the non adjustable Trail kit for my 5th Gen Ram 1500 with a 2” lift. The welds look great, nice powder coat finish and quality bushing. Had some trouble fitting the grease nipples due to the powder coating but a thread tap would fix that. They fit easily and perform great. I felt the improvement straight away. No more wheel hop on hard acceleration which was my main reason for the purchase. I was missing some smaller bushings needed for the 5th Gen and Korby’s custom service was on point, with responsive emails and mailing out the missing parts straight away. Very happy with their products and customer service. Highly recommended company👌🏽
Review photo 1 Review photo 2 Review photo 3 Review photo 4
ZA
Zen Asher Mar 23, 2025
★ ★ ★ ★ ★ Google
The quality and durability of the arms are the best. They are super heavy duty. And lifetime warranty is crazy
C
Chris Oct 24, 2025
★ ★ ★ ★ ★ Google
Great product for a good price. Customer service is top notch, I had an issue which was self cause and Core 4x4 helped me out even though it was my own fault. Would definitely recommend and use them again.
FS
Fernando Salazar Aug 25, 2025
★ ★ ★ ★ ★ Google
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!
JM
Jason Mitchell Dec 8, 2025
★ ★ ★ ★ ★ Google
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.
MM
MIKE (Mike the Mechanic) Jul 26, 2025
★ ★ ★ ★ ★ Google
Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
MH
mark hinz Mar 2, 2026
★ ★ ★ ★ ★ Google
Went above and beyond to get the parts we needed to complete our customers build for Moab Easter safari cant thank you enough for all your hard work and efforts Thank you and look forward to working with you in the near future
BW
Brian Wadsworth Jun 26, 2025
★ ★ ★ ★ ★ Google
Amazing product! Shipping was quick, packaging was great and support was outstanding!!
JM
Jay Miller Jul 26, 2025
★ ★ ★ ★ ★ Google
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
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Made in Orem, UT · You break it, we replace it.
385-375-2104
Dodge/Ram HD 5500
2008–Present
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