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Dodge Ram 2500 03-07 6pc Heavy-Duty Adjustable Long Arm Upgrade Kit

Dodge Ram 2500 03-07 6pc Heavy-Duty Adjustable Long Arm Upgrade Kit
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2,094.75 2094.75 USD 2,094.75

2,094.75

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Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
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COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/2679/image_1920?unique=edc8f61

Dodge Ram 2500 03-07 6pc Heavy-Duty Adjustable Long Arm Upgrade Kit

Dodge Ram 2500 03-07 6pc Heavy-Duty Adjustable Long Arm Upgrade Kit
SKU: D-25-2003-LAK4
Pick your vehicle to confirm fit

2,094.75 2094.75 USD 2,094.75

2,094.75

COLOR 11 colors
Black Blue Charcoal Green Light Green Orange Purple Red White Yellow Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Year Range
  • Bracket Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
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
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Unleash the Full Potential of Your Dodge Ram’s Suspension

Upgrade your 2003-2007 Dodge Ram 2500 with the CORE 4X4 Long Arm Upgrade Kit, designed to provide superior strength, stability, and suspension travel. Factory short arms limit articulation, create a harsh ride, and reduce control under extreme conditions. Our true 4-link long arm design corrects suspension geometry, allowing for smoother suspension cycling, better axle control, and a more comfortable ride. Whether you’re conquering rocky terrain or hauling heavy loads, this bolt-on kit enhances both on-road drivability and off-road capability.

Key Features Benefits

  • Optimized Suspension Travel True 4-Link Design – Longer control arms reduce suspension bind, improving ride quality, axle control, and overall handling. Upper control arms feature inward bends for larger tire clearance and maximum articulation.
  • Heavy-Duty DOM Tubing Precision-Steel Brackets – Built from 1.75” OD upper arms and 2.25” OD lower arms, paired with 3/16” precision-cut plate steel brackets for extreme durability.
  • Rock Jock Johnny Joints at Both Ends – Provides maximum articulation, adjustability, and durability, ensuring long-term performance in off-road conditions.
  • Fully Adjustable to Maintain Suspension Geometry – Compatible with 0-6 inches of lift, keeping the axle centered and suspension geometry correct. Options available for lifts over 6 inches upon request.
  • Seamless Bolt-On Installation – No welding required, integrates seamlessly with the existing factory crossmember. For lifts under 3 inches, minor trimming of body mounts may be necessary for clearance.

Two-Stage Powder Coating for Maximum Durability

Every control arm and bracket undergoes a zinc primer base coat for superior corrosion resistance, followed by a durable topcoat available in 10 color options. This process ensures long-term protection and a customized look.

Proudly Made in the USA

All components in our Long Arm Upgrade Kit are manufactured in our Orem, UT facility, ensuring maximum strength, reliability, and long-term performance.

Effortless Installation

Includes all necessary installation hardware for a hassle-free upgrade. With a 100% bolt-on design, no welding is required, making installation simple and straightforward. For lifts under 3 inches, minor trimming of body mounts may be needed for clearance.

Conclusion

The CORE 4X4 Long Arm Upgrade Kit for 2003-2007 Dodge Ram 2500 is the ultimate enhancement for your truck’s suspension. With improved articulation, superior ride quality, and unmatched off-road capability, this kit is built for serious performance. Whether you're navigating technical terrain, towing, or daily driving, this upgrade provides maximum durability and control.

Upgrade today and experience the next level in suspension performance!


  • Vehicle Fitment: Dodge Ram 2500 03-07 – Enhances suspension travel, axle control, and articulation, improving on-road drivability and off-road capability for a smoother, more comfortable ride under extreme conditions.

  • CORE Advantage: True 4-link design improves suspension geometry and axle control, reducing suspension bind and harsh angles while maximizing articulation for better handling and a more comfortable ride.

  • Adjustability: Fully adjustable for 0-6 inches of lift, ensuring proper axle centering and suspension geometry. Options are available for lifts over 6 inches upon request, providing flexibility for future modifications.

  • Construction: Built with heavy-duty DOM tubing (1.75” OD upper arms, 2.25” OD lower arms) and precision-cut 3/16” steel brackets. Rock Jock Johnny Joints at both ends provide maximum flexibility, adjustability, and durability for off-road performance.

  • 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 lower built with 2.25" x .25" wall DOM Forged Johnny Joint on the fixed and adjustable end with 1.25" x 12 TPI - 3.25" long threads.Front Upper built with 1.75" OD .313" Wall DOM tubing. Forged Johnny Joint on the fixed and adjustable end with 1.25" x 12 TPI - 3.25" long threads.

Make Model Submodel Years
Ram 2500 2003 - 2007

Construction & Materials

Front lower built with 2.25" x .25" wall DOM Forged Johnny Joint on the fixed and adjustable end with 1.25" x 12 TPI - 3.25" long threads.Front Upper built with 1.75" OD .313" Wall DOM tubing. Forged Johnny Joint on the fixed and adjustable end with 1.25" x 12 TPI - 3.25" long threads.

Vehicle Ram HD 2500 (03–07)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or Light Green 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.
Year Range 03-07
Bracket Color Color or Black
Placement on Vehicle Front Upper, Front Lower, Front
Mounting Style Bolt-On
Google

Reviews of Core 4x4

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
SC
Singer Heating and Cooling Mar 25, 2018
Google
These guys are great. You can get them on the phone for support. This important and is not always the case with other custom parts builders. Their control arms are bomb proof and offer plenty of options. You can get real genuine Currie Johnny joints without paying the price for Currie arms.
JT
jacob trice Apr 27, 2025
Google
Core 4x4 has outstanding products at a fair price and unmatched customer service. When you call Korby, it's like talking with a friend. Very cool and helpul! I ordered some custom control arms, but from the wrong product line and they were super cool about returning them and upgrading to a better "Crawl" series. Only charged the difference between the two products. They paid all the return shipping and sent the uprgaded arms super quick. It was only a couple days. Awesome!! I couldn't be happier with the transaction👍🏼 Also, these control arms are stout and take a beating. I run heck out my Jeep in the rocks and desert. No problems whatsoever. Thanks Core 4x4, ya'll are welcome at my campfire anytime! Jake T. Pleasant Hill, Or.
TG
Travis Grimm Mar 23, 2024
Google
To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
E(
Eric Hernandez (savagefit) May 27, 2025
Google
The whole process was quick and painless. The products are top tier and when I reached out them for package update info, Korby Linscomb was very responsive, and got me the answers I needed the same day. Even when I emailed back to some additional info, he sent what I was looking for that same day. I love core 4x4 and will be giving them my business from now on.
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
JH
Joe Hu Sep 24, 2025
Google
Amazing! I put all my new control arms and it drives a lot smoother and looks great!!!
Review photo 1
JT
Jay Taylor May 27, 2025
Google
Had a worn out set of rear upper control arms on my TJ. These were old rubicon express long arms. can’t buy replacements and no one makes a direct fit replacement. Talked with Korby at core off road sent some measurements and photos and a week later new arms showed up. Packaging was perfect fit was perfect. Would highly recommend giving these guys a call.
WT
William Turton Nov 23, 2025
Google
Finally a company with a great product and customer service to match. I changed my order last minute from short arms to long arms. The lift is extremely well built. Korbey was awesome! Highly recommend Core 4x4
GV
Gil Valk Sep 24, 2025
Google
Excellent service, Prompt responses when needing technical assistance, Amazing looking parts that fit excellently. I would recommend them to anyone looking for suspension components. Also very well packaged when we received the shipment, which means no damage from shipping company!! We went with the Crawl Series double adjustable kit and it definitely looks killer on our build!!!
Review photo 1 Review photo 2 Review photo 3 Review photo 4
GN
Glenn Nowosad Jan 22, 2026
Google
I just finished installing the Peak 2.0 Front Suspension system with the Core 4x4 Blue Tacoma Rear Suspension system on my 2024 TRD Offroad Premium Tacoma. The two upgraded suspension systems really made a difference in how the ride feels, whether we’re off-road or on the road. A big thank you to Korby and the team at Core 4x4 for their support and for getting the shipping sorted out so quickly!
Review photo 1 Review photo 2 Review photo 3 Review photo 4

Specifications

Color Black, Blue, Charcoal, Green, Light Green, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Bracket Color Color, Black
Vehicle Ram HD 2500 (03–07)
Brand CORE 4X4
Year Range 03-07
Note to Core4x4: -
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