BDS 6-Inch Lift Kit | FOX 2.0 Shocks | Leaf Springs + 3.5-Inch Axle | Ram 2500/3500 4WD Diesel 2003-2007

BDS 6-Inch Lift Kit | FOX 2.0 Performance Series Shocks | Leaf Springs + 3.5-Inch Axle Block | Ram 2500/3500 4WD Diesel 2003–2007 | SKU: BDS236FS

The BDS 6-Inch Suspension Lift Kit (SKU: BDS236FS) is a complete front and rear lift system for 2003–2007 Ram 2500 and Ram 3500 4WD diesel models. The front system delivers a 6-inch lift using diesel-tuned coil springs and geometry-correct radius arm correction brackets — maintaining proper caster, stabilizing steering, and preserving driveline alignment at lifted height. The rear system uses replacement leaf springs and 3.5-inch axle blocks to match the front lift height while maintaining load capacity and proper rear stance. The included FOX 2.0 Performance Series shocks provide improved damping control, heat resistance, and ride quality for towing, hauling, and daily use on the diesel platform.

Verified Fitment (OFAS Standard)

• Ram 2500 4WD Diesel: 2003–2007
• Ram 3500 4WD Diesel SRW (Single Rear Wheel): 2003–2007

Does NOT fit: Ram 2500 or Ram 3500 gas — different front suspension tuning. Does not fit Ram 2500 or Ram 3500 2WD. Does not fit Ram 2500 or Ram 3500 2008 or newer — different platform and suspension architecture. Does not fit Ram 1500 or Ram 1500 Classic. Ram 3500 DRW (Dually) — contact OFAS at 903-347-3875 to confirm DRW compatibility before ordering. Confirm model year, drivetrain, engine, and SRW vs. DRW before ordering.

Two Critical Fitment Gates

• 4WD only: This kit is engineered for 4WD Ram 2500 and Ram 3500. Does not fit 2WD models.
• Diesel only: Coil springs and geometry are tuned for the diesel engine platform and its front-end weight distribution. Does not fit gas models.

Ram 3500 SRW vs. DRW — Confirm Before Ordering

The 2003–2007 Ram 3500 was available in both SRW (single rear wheel) and DRW (dually) configurations. This kit is confirmed for Ram 3500 SRW. Ram 3500 DRW compatibility has not been confirmed — contact OFAS at 903-347-3875 to verify DRW fitment before ordering.

Front and Rear Lift System

• Front — 6-inch coil lift: Diesel-tuned coil springs deliver 6 inches of front lift height. Geometry-correct radius arm correction brackets maintain proper caster and driveline alignment at lifted height.
• Rear — Leaf springs + 3.5-inch axle block: Replacement rear leaf springs and 3.5-inch axle blocks match the front lift height while maintaining rear load capacity and proper stance. Note: 3.5-inch axle block — different from the 4-inch block used on the 2009–2013 Ram 2500 diesel kit (BDS6673FS).
• Matched system: Front and rear components are engineered together for the 2003–2007 platform — proper front-to-rear lift ratio, consistent stance, and predictable handling under load.

FOX 2.0 Performance Series Shocks

• Improved damping: FOX 2.0 Performance Series shocks deliver significantly improved damping control over factory shocks at lifted height
• Heat resistance: 2.0-inch shock body provides greater oil volume for improved heat dissipation during extended towing and off-road use
• Ride quality: Tuned for the 2003–2007 Ram 2500/3500 4WD diesel platform
• FOX warranty: FOX 2.0 Performance Series shocks include a 1-year limited warranty

What’s Included

• Diesel-tuned front coil springs
• Geometry-correct radius arm correction brackets
• Track bar correction bracket
• Rear replacement leaf springs
• 3.5-inch rear axle blocks
• FOX 2.0 Performance Series shocks
• All required hardware and installation hardware

Technical Specifications

• SKU: BDS236FS
• Brand: BDS Suspension
• Lift Height: 6 inches (front) / matched rear via leaf springs + 3.5-inch axle block
• Front System: Diesel-tuned coil springs + geometry-correct radius arm correction brackets
• Rear System: Replacement leaf springs + 3.5-inch axle blocks
• Shocks: FOX 2.0 Performance Series
• Application: Ram 2500/3500 SRW 4WD Diesel 2003–2007
• Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty on shocks

Installation Notes

• Professional installation required: Front and rear suspension lift with geometry correction is a complex modification — professional installation by a qualified suspension shop is required.
• Alignment mandatory: Full front-end alignment is required after installation. Do not drive on public roads before alignment is completed.
• Driveline inspection: At 6-inch lift height, inspect driveshaft angles and U-joint operating angles after installation. Contact OFAS at 903-347-3875 if driveline vibration is present after installation.
• Torque specs: All suspension fasteners must be torqued to BDS specifications per installation instructions.
• Break-in period: Allow FOX shocks and new leaf springs to break in per BDS and FOX recommendations before aggressive off-road use.
• Tire sizing: Contact OFAS at 903-347-3875 to confirm maximum tire size for your Ram 2500/3500 with this 6-inch lift before ordering wheels and tires.

Installation Warning

Professional installation required. Alignment mandatory after installation. Driveline inspection required at 6-inch lift height. Does not fit gas models, 2WD, or 2008 and newer Ram 2500/3500. Ram 3500 DRW — confirm compatibility with OFAS before ordering.

Have you confirmed your Ram 2500 or Ram 3500 is a 2003–2007 4WD diesel SRW model — Ram 3500 DRW? Contact OFAS at 903-347-3875 to verify DRW fitment before ordering.