4" 2025-2026 Dodge Ram 2500 4WD (w/diesel engine) Radius Arm Lift Kit by BDS Suspension

BDS 4" Radius Arm Lift Kit for Ram 2500 diesel trucks improves suspension geometry, ride quality, and off-road capability while maintaining excellent on-road comfort and drivability. Designed specifically for diesel applications, this system allows for up to 37" tire fitment while correcting driveline angles and increasing suspension travel for confident performance in any environment.

At the core of this system are heavy-duty tubular radius arms that properly position the front axle and restore caster geometry lost when lifting, improving straight-line stability, steering return-to-center, and braking control. Pro-Ride coil springs are engineered to support the added weight of the diesel platform while delivering a smooth, predictable ride. A transfer case indexing ring is included to optimize driveline angles and increase suspension droop, while a track bar relocation bracket ensures proper axle centering and steering alignment.

Shock options allow further tuning of ride quality and performance. BDS NX2 Nitro shocks provide a comfortable, budget-friendly ride for everyday use. FOX 2.0 Performance Series shocks deliver consistent, fade-free damping, while FOX 2.5 Performance Series HTO shocks add increased oil capacity and position-sensitive rebound control. For maximum performance, FOX 2.5 Performance Elite shocks with DSC adjusters offer independent high- and low-speed compression tuning for precise control across any terrain.

Features and Benefits:

• BDS 4" radius arm lift kit for Ram 2500 diesel trucks
• Provides clearance for up to 37" tires
• Heavy-duty tubular radius arms correct caster and improve suspension geometry
• Pro-Ride coil springs tuned for diesel applications deliver smooth, controlled ride quality
• Includes transfer case indexing ring for optimized driveline angles and increased suspension travel
• Track bar relocation bracket re-centers the front axle for proper alignment
• Front sway bar and brake line corrections maintain proper handling characteristics
• Shock options available:
• BDS NX2 Nitro Series for comfortable daily driving and light off-road use
• FOX 2.0 Performance Series for consistent, fade-free damping
• FOX 2.5 Performance Series HTO for increased oil capacity and position-sensitive rebound control
• FOX 2.5 Performance Elite Series with DSC adjusters for maximum tunability and performance
• Rear Pro-Ride coil springs maintain load capacity and balanced ride quality
• Engineered for towing, off-road performance, and daily driving durability
• Recommended tire size: 35 x 12.5 or 37 x 12.5
• Recommended wheel size: 18 x 9 or 20 x 9 with 4.5" backspacing, or 20 x 9 with 5.625" backspacing for 37" tires