✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Free Shipping Bds 648h 6 Inch Long Arm Lift Kit With Nx2 Nitro Shocks & Leaf Springs | 2003-2007 Dodge Ram 2500/3500 5.9l Cummins 4wd With 3.5 Inch Axle Accessory [yeYtcTbN]

$119.99 $383.99 -69%

Features & Benefits Tubular long arms reduce caster change and create more controlled feeling on and off roadHeavy duty control arm brackets maintain proper suspension geometryFront high strength progressive rate coil springs for a great ride on

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Features & Benefits

  • Tubular long arms reduce caster change and create more controlled feeling on and off road
  • Heavy duty control arm brackets maintain proper suspension geometry
  • Front high strength progressive rate coil springs for a great ride on any terrain
  • Front track bar relocation bracket to re-position axle
  • Forged drop pitman arm to correct steering angles
  • Front sway bar correction to maintain handling performance
  • BDS NX2 gas or FOX performance series IFP gas shocks to improved ride and offroad performance

Built to outperform, BDS Suspension engineered a 6-inch lift kit with long arm conversion for your 2003-2007 Dodge RAM 2500 and 3500 4WD diesel powered truck that maximizes performance on and off road. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 37" tires. BDS built the long lower control arms to reduce caster change through wheel travel which creates a more controlled feeling in the steering wheel. This long arm long arm system retains the factory triangulation of the arms which adds to the stability of the suspension system.

Up front the lift kit includes diesel-specific Pro-Ride coil springs, all four control arms plus mounting bracket, forged drop pitman arm and track bar bracket for steering correction, bump stops, sway bar links, and precision tuned NX2 or FOX 2.0 nitrogen charged shocks. In the rear this kit utilizes heavy duty cast steel blocks, longer u-bolts, and a matching set of NX2 Nitro or FOX 2.0 Performance shocks.

Pro-Ride Coil Springs

A pair of full-length, diesel-specific, progressive rate Pro-Ride coil springs are supplied to provide the correct lift height and smooth, predictable ride across various terrains. Manufactured from high tensile steel, our direct OE replacement coil springs are engineered with properly sized wire diameter. This results in maximum reliability without premature coil bind.

Steering Correction

To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle.

Rear Lift Option

Leaf Springs

  • Eliminates any need for a lift block.
  • Reduces axle wrap and creates a more controlled and stable feel.
  • Multi-leaf progressive design for a smooth ride.
  • Maintains factory payload weight ratings.

Shock Option

NX2 Nitro Series

  • Nitrogen-charged
  • Twin-tube design
  • 10-stage velocity-sensitive valving
  • Dual-welded ends for increased strength
  • 1-3/8-inch high-flow piston
  • Self-lubricating seals
  • Silver powder coat finish

Axle Diameter

The Dodge Ram truck has 2 different rear axle diameters. Please measure your rear axle and select the appropriate rear kit for your vehicle.

Recommended Tires & Wheels

  • 37 x 12.5 with 17 x 9 and 5 in. Backspace

Vehicle Fitment

2003-2007 Dodge Ram 2500/3500 4WD Diesel with 3.5" Rear Axle

Kit Includes

  • 03-05 Dodge 3/4 ton 5in Rear Spring (002508 x2)
  • 03-07 Ram 6in Long Arm Box Kit (012603)
  • Dodge Control Arm Mounts (012801)
  • Dodge Control Arm Box Kit (012802)
  • 94-up Dodge Ram 2500(dsl) Coil Kit (032503)
  • Shock- 27.40 x 16.20 x 2-3/8 - S50/EB2 (85750 x2)
  • Shock- 33.00 x 19.25 x 2-3/8 - EB1/EB1 (85761 x2)
  • Automotive Axle U-Bolt - Round (UBT4064 x4)

What Our Customers Say

January 1, 2026

Absolutely no complaints!

A great product. And I'm very happy with it.

- Tana X..

January 1, 2026

Absolutely no complaints!

A great item. And very, very, very useful.

- Melisa N..

January 1, 2026

Absolutely no complaints!

It operates so smoothly and is very quiet.

- Grace U..

Write a Review

You Might Also Like

Discover more great products from our collection.

Evo Clamp

Evo Clamp

(731)
$49.99 $159.99 -69%
Harlee Denim Vest by HIDDEN

Harlee Denim Vest by HIDDEN

(346)
$22.99 $73.99 -69%
Volkswagen Immobilizer Delete

Volkswagen Immobilizer Delete

(450)
$45.99 $147.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY