BDS 4 Inch Lift Kit w/ Radius Arm | 2013-2018 Ram 3500 4WD Diesel | NX2 Nitro Series Shocks

Configured with NX2 Nitro Series nitrogen-charged gas shocks front and rear for improved ride quality and off-road performance.

Overview

This 4-inch radius arm lift kit from BDS Suspension is designed for 2013–2018 RAM 3500 diesel-powered 4WD trucks. The kit improves stance, performance, and capability while providing clearance for up to 35-inch tires. Up front, it includes diesel-specific Pro-Ride coil springs, heavy duty tubular radius arms, a forged drop pitman arm, a track bar bracket for steering correction, bump stops, and brake line brackets. Out back, the kit uses a high-strength fabricated lift block, longer U-bolts, and a matched set of rear shocks. Shocks are available in NX2 Nitro Series or FOX 2.0 Performance Series configurations.

Features

• Heavy duty tubular radius arms for improved strength, handling, and caster control
• Diesel-specific progressive rate Pro-Ride coil springs for a smooth, predictable ride across various terrains
• Front track bar relocation bracket to re-center the front axle
• Forged drop pitman arm to correct steering angles once lifted
• Front sway bar correction to maintain handling performance
• High-strength fabricated rear lift block with longer U-bolts
• NX2 Nitro Series or FOX 2.0 Performance Series IFP nitrogen-charged shocks (front and rear)
• HD radius arms mount into factory location with OE-style rubber bushing at frame mount for quiet, service-free operation
• Caster adjustment capability for a wide range of lift heights

Specifications

• Lift Height: 4 inches
• Tire Clearance: Up to 35 inches
• Coil Springs: Full-length, diesel-specific, progressive rate Pro-Ride
• Radius Arms: High-strength tubular steel, replaces factory stamped steel arms
• Pitman Arm: Forged drop style
• Rear Lift Method: Fabricated lift block with extended U-bolts
• Shock Options: NX2 Nitro Series or FOX 2.0 Performance Series IFP shocks

Installation

• Estimated Time: 6–8 hours
• Difficulty: Moderate
• Tools Required: Drill / Bit Set, Pitman Arm Puller, Welding Equipment

Important Notes

• The carrier bearing drop is necessary for models equipped with a two-piece rear driveshaft.
• Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement.
• Will not fit models with rear factory air ride.