6" 2025-2026 Dodge Ram 2500 4WD Radius Arm Lift Kit by BDS Suspension

BDS Suspension BDS2135H / 2135FS 6" Radius Arm Lift Kit upgrades suspension performance, ride quality, and off-road capability on Ram 2500 diesel trucks with a complete extended travel system engineered for strength and drivability. Designed specifically for the diesel platform, this kit provides clearance for up to 37" tires while maintaining proper suspension geometry, corrected driveline angles, and confident on-road handling.

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 steering stability, braking control, and overall ride quality. Pro-Ride coil springs are tuned to support the added weight of the diesel engine while delivering a smooth, controlled 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. Additional components, including sway bar links and brake line brackets, maintain proper operating angles throughout the suspension's travel.

Shock options allow fine-tuning of ride characteristics across a wide range of driving conditions. BDS NX2 Nitro shocks offer a comfortable, budget-friendly ride for daily use. FOX 2.0 Performance Series shocks provide consistent, fade-free damping, while FOX 2.5 Performance Series HTO shocks increase oil capacity and add position-sensitive rebound control. At the top level, FOX 2.5 Performance Elite shocks with DSC adjusters deliver advanced tunability with independent high- and low-speed compression adjustment for maximum control on any terrain.

Features and Benefits:

• 6-inch front lift / 4.5-inch rear lift
• 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: 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