Skip to Content
ADD YOUR JEEP — FIND EXACT-FIT PARTS ›
Back to 5pc Kit
SKU: TRL-D-25-2003-K5 ★★★★★ (132 reviews)
⬡
LIFETIME WARRANTY
✓
FITS YOUR EXACT VEHICLE
🚚
SHIPS IN 1–3 DAYS
🔧
MADE IN UTAH, USA
From

$ 974.21 974.21 USD $ 1,082.45

$ 1,082.45

More payment options ▾

🔧 Built to order · Ships in 1–3 business days

COLOR 11 colors — pick yours
https://jerdev.core4x4.com/web/image/product.template/1630/image_1920?unique=608eb6f
SKU: TRL-D-25-2003-K5
Fits: 2003 - 2007 Ram HD 2500 Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 974.21 974.21 USD $ 1,082.45

$ 1,082.45

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.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Arm Bend
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Year Range
  • Note to Core4x4:

Select Color to see price and add to cart.

WHAT’S INCLUDED
4
Upper Control Arms
4
Lower Control Arms
2
Front Track Bars
2
Rear Track Bars
4
End Links

4–8 hr install Moderate 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
Ships in 3 Days From our UT facility
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Why Builders Choose CORE 4X4

Warranty facts, not marketing language.

vs. MetalCloak

Their “lifetime” language refers to their service model. Actual parts warranty: 1 year. Ours: lifetime.

vs. Teraflex

Skip a maintenance interval? Their warranty voids. Ours doesn’t.

vs. Clayton Off Road

Clayton warrants their Johnny Joints for 90 days. We cover ours for life.

Maximize Stability, Handling, and Ride Quality

Upgrade your Dodge Ram 2500 (2003–2007) with the Trail Series Adjustable Front Suspension Kit, designed to restore suspension geometry, eliminate steering instability, and enhance overall ride quality. Whether you're towing, hauling, or navigating rugged terrain, this kit corrects caster, improves steering response, and eliminates common issues like wandering and bump steer. Built for durability and precision, this front-end upgrade delivers exceptional strength and control under demanding conditions.

What’s Included in the Kit?

  • Adjustable Front Upper Control Arms (TRL-D-25-2003-FU2)
  • Adjustable Front Lower Control Arms (TRL-D-25-2003-FL2)
  • Adjustable Front Track Bar (D-25-2003-FTB1)

Key Features Benefits

  • Heavy-duty DOM tubing construction – Built from 1.75” OD DOM Tubing with 5/16” wall thickness, ensuring superior durability for heavy-duty applications.
  • Hybrid joint design for strength comfort – Features Rock Jock Johnny Joints on the adjustable ends and tapered polyurethane bushings on the fixed ends, offering long-lasting durability with reduced vibration and noise.
  • Precision adjustability for full suspension control – Allows accurate caster correction, axle centering, and pinion angle adjustments, optimizing stability and handling in all conditions.
  • Improved ride quality steering performance – Eliminates wandering, poor steering return, and bump steer, significantly improving on-road drivability and off-road control.

Optional Hardware Upgrade for Hassle-Free Installation

Installs using factory hardware, but for increased durability and proper alignment retention, an optional Grade 8 hardware kit with a cam bolt delete is available separately.

A Game-Changing Upgrade for Stability Control

Lifting your truck or adding heavy loads can cause axle misalignment, unstable steering, and suspension wear. The Trail Series Adjustable Front Suspension Kit corrects these issues, ensuring your truck handles better, responds quicker, and drives more confidently. Whether you're on the highway, job site, or off-road, this kit provides the strength, adjustability, and precision needed to keep your Ram 2500 performing at its best.

Highly Durable Two-Stage Powder Coating

All components undergo a two-stage powder coating process for maximum protection. A zinc primer base coat provides superior corrosion resistance, while the durable topcoat, available in 10 colors, adds extra durability and customization.

Proudly Made in the USA

Every part is designed, manufactured, and tested in Orem, UT, ensuring top-tier quality and supporting American manufacturing.

Final Thoughts

The Trail Series Adjustable Front Suspension Kit is a must-have for Dodge Ram 2500 owners looking to correct suspension geometry, enhance handling, and maximize vehicle stability. Designed to handle towing, hauling, and off-road abuse, this kit delivers unmatched strength, adjustability, and ride quality. Upgrade today and experience the ultimate in suspension control and performance!

 

Make Model Submodel Years
Ram 2500 2003 - 2007

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

Master Rebuild kit for TRL-D-25-2003-K5 $ 180.00
Master Rebuild kit for TRL-D-25-2003-FL2 $ 72.00
Master Rebuild kit for TRL-D-25-2003-FU2 $ 72.00

Vehicle Ram HD 2500 (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.
Hardware No Hardware or Complete Kit
Arm Bend No Bend or Inward Bend
Lift Size 0" — 6" or 6"+
Series Trail Series
Year Range 03-07

Select your lift size in Step 1 — the kit ships with the correct geometry for that height. If you’re running a non-standard setup, call us before ordering and we’ll confirm compatibility.

Death wobble is a geometry problem, not just worn parts. Cruise Series corrects caster angle and eliminates the flex points that let shimmy start. Replacing one part at a time delays the fix — this replaces the geometry.

Yes, if you’ve done a lift kit before. Full-day project. Watch the complete JT install walkthrough on our YouTube channel — most owners wrap it in a day. Any off-road shop can run it if you’d rather have it done.

Any non-wear component fails — we replace it. No mileage cap. No maintenance intervals to track. No fine print about voiding if you miss a service. Lifetime means lifetime.

Teraflex’s lifetime warranty voids if you miss a maintenance interval. MetalCloak’s actual parts warranty is 12 months — their “lifetime” language refers to their service program. No conditions here.

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
Google

Reviews from Google

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
8
89Patriot Jan 22, 2026
★ ★ ★ ★ ★ Google
Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.
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!!!
S
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
OA
Owen Adams Sep 24, 2025
★ ★ ★ ★ ★ Google
These guys are awesome I messed up my address on my order somehow and they were so so helpful Korby was right there every step to a solution very communicative and respectful I will definitely be ordering parts with them in the future!
RR
Ryan Rogers Aug 25, 2025
★ ★ ★ ★ ★ Google
I purchased a set of the Cruiser Series control arms for my Jeep Jk based on postive reviews from different Jeep Facebook pages. Ordered and 2 days later realized they had the very same exact arms on sale in the overstock section. Called them up and they refunded me the savings from my original purchase. Amazing, honest service. Can't wait to get them installed. Keep up the good work guys.
AL
Aaron Lake Apr 27, 2025
★ ★ ★ ★ ★ Google
Korby was a great help with getting me a set of leaf springs for my Cherokee. Great customer service and an awesome product all made in the USA. Proud to support and rock their parts on my vehicle. 👍 …
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!
HK
Harold Kruder Mar 23, 2024
★ ★ ★ ★ ★ Google
I needed some parts and had to replace 1 lower control arm and their customer service is great. Helped with answering my questions and got parts shipped quickly.
EA
Eric Ahonen Mar 24, 2021
★ ★ ★ ★ ★ Google
Awesome control arms! My mechanic said “ your Jeep is pretty much bulletproof now.” And I just got the tier 1 arms! The people at the core 4x4 shop were really nice too. They were running behind on shipping, (which is understandable) so I decided to go pick it up because it was only an hour drive. They gave me a free $60 hardware kit for the inconvenience. Thanks core 4x4! You guys are awesome!!
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.

Specifications

Color Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Hardware No Hardware, Complete Kit
Arm Bend No Bend, Inward Bend
Lift Size 0" — 6", 6"+
Vehicle Ram HD 2500 (03–07)
Brand CORE 4X4
Series Trail Series
Year Range 03-07
Note to Core4x4: -
Tags
Tags
Add your vehicle ›
Loading…
Add vehicle
SHOP BY VEHICLE
Home