Why Builders Choose Core 4x4
The only aftermarket suspension brand with an X-Series product system
vs. MetalCloak
One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.
vs. Teraflex
Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.
vs. Clayton / Budget
Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? 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.
What’s Included?
- Upper Long Arms – Heavy-Duty DOM Tubing
- Lower Long Arms – Heavy-Duty DOM Tubing
- Precision-Cut 3/16” Plate Steel Mounting Brackets
- All Necessary Hardware for Installation
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!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Ram | 2500 | 2003 - 2007 |
| 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 |
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
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