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Discover Bds 647fs 6 Inch Lift Kit With Fox 2.0 Shocks & Rear Block Kit | 2003-2007 Dodge Ram 2500/3500 5.9l Cummins 4wd With 4 Inch Axle In Multiple Colors [KkJN51Mi]

$106.99 $342.99 -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

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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

Block Kit

  • Blocks are made from cast iron for strength.
  • Tapered for correct pinion angle.
  • Steel pin and hole are offset to restore axle position.

Shock Option

FOX 2.0 Performance Series

  • 2-inch Impact extruded aluminum body
  • Internal floating piston (IFP) monotube design
  • CNC machined 6061-T6 aluminum mounting ends
  • Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
  • Race-developed high-flow piston design
  • Application-specific valving to maximize performance
  • Long-lasting clear anodized 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 4" Rear Axle

Kit Includes

  • 03-up Dodge 3/4ton 4in Rear (012405)
  • 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)
  • Fox 2.0 Shock 28.25 x 17.15 x 2- S50/EB1 (FOX98224750 x2)
  • Fox 2.0 Shock 33.85 x 20.75 x 2- EB1/EB1 (FOX98224761 x2)

What Our Customers Say

December 30, 2025

Absolutely no complaints!

The quality of this is simply marvelous.

- Ian H..

December 30, 2025

Absolutely no complaints!

I'm happy with my great, great product.

- Tiffani P..

December 30, 2025

Absolutely no complaints!

A purchase I am extremely content with.

- Parker Z..

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