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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
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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
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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
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%
JJ
Jason Jukich Jul 26, 2025
Google
Fast shipping, excellent communication, and awesome products
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.
RG
Robert Van Gorder Apr 27, 2025
Google
Amazing service. Bought a track bar through Americantrucks.com and they sent it with the wrong size bushing sleeve. Korby at Core 4x4 was quick to get me the correct size and very responsive. Will definitely be using more of their stuff.
KK
Kevin Kinard Oct 24, 2025
Google
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
MT
Ma TheMeatLoaf Mar 23, 2024
Google
Their website estimated 2 days to get my parts but actually took 11. No communication to let me know what’s going on. Parts were missing. Some days they answer questions, some they don’t. Didn’t let me know I’d have to alter stock bolts to fit their parts. All around just seems like they don’t care.
JA
Jonathan Aguilera Jan 22, 2026
Google
Great experience with Core 4x4! I purchased some suspension parts for my dad's 98 Jeep TJ. The products they make are super durable and look even better in person. Attention to detail and overall superior quality. The staff at Core 4x4 is super helpful also, Korby has been great. Updating me on the status of my order and sending me tracking numbers as well. Thank you all at Core 4x4, keep up the amazing work!
MR
Melanee Raynes Mar 25, 2019
Google
Awesome product and service! I even got some of their swag because it looked pretty darn good. I will definitely be going back and would suggest this business to others looking for quality control arms. Buy local!
PM
Paul Melancon Aug 25, 2025
Google
Ordered a control arm and track bar kit for my WJ from Core 4x4 on Monday 7/28 and received it today, Friday 8/1. Im not a state or two away, im in CT aka the other side of the country. Communication is phenominal, emails were responded too in an hour or less. Parts arrived well packed, not damaged, and are great quality for my needs. There arent many companies left that service customers as well as Core 4x4 and i wont hesitate to check them out again if i need something else. Well done!
BS
Bailey Smith Mar 23, 2025
Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
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

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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