BDS 4 Inch Lift Kit w/ 4-Link Conversion | Ram 3500 Diesel w/ Rear Air Ride (2013-2018) 4WD | FOX 2.0 Performance Series

Configured with FOX 2.0 Performance Series shocks front and rear. FOX 2.0 shocks feature a 2-inch impact extruded aluminum body, an internal floating piston (IFP) monotube design, a massive 5/8-inch hard chrome plated heat-treated alloy steel shaft, CNC machined 6061-T6 aluminum mounting ends, race-developed high-flow piston design with application-specific valving, and a long-lasting clear anodized finish.

Overview

BDS Suspension engineered this 4-inch lift kit with 4-Link conversion for 2013–2018 RAM 3500 diesel-powered trucks equipped with the factory rear air ride option. Designed to improve stance, performance, and capability, this kit includes everything necessary to achieve up to 35-inch tire clearance. Up front, the kit includes diesel-specific Pro-Ride coil springs, 4-Link control arms with conversion mounts, a forged drop pitman arm, track bar bracket for steering correction, bump stops, and brake line brackets. In the rear, a high-strength fabricated lift block, heavy duty air bag spacer, and longer U-bolts are included. Precision-tuned NX2 Nitro or FOX 2.0 shocks are included front and rear depending on the selected configuration.

4-Link Conversion

This kit converts the factory stamped steel radius arms to the BDS 4-Link system to optimize suspension geometry for improved handling, strength, and stability. This bolt-on upgrade uses high-strength 1/4-inch steel brackets to mount HD upper and lower control arms, correcting axle positioning and limiting caster change throughout wheel travel.

Pro-Ride Coil Springs

Full-length, diesel-specific, progressive rate Pro-Ride coil springs are included to provide the correct lift height and smooth, predictable ride across various terrains.

Steering Correction

A forged drop pitman arm minimizes steering angle once the vehicle is lifted. A heavy duty track bar drop bracket keeps steering components in phase through suspension travel while recentering the front axle.

Features

• Heavy duty 4-Link improves strength, handling, and caster control
• Front high-strength progressive rate coil springs for improved 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
• NX2 Nitro gas or FOX 2.0 Performance Series IFP gas shocks for improved ride and off-road performance

Specifications

• Lift Height: 4 inches
• Compatible Tire Size: Up to 35 inches
• 4-Link bracket material: 1/4-inch high-strength steel
• Diesel-specific Pro-Ride progressive rate coil springs
• Includes high-strength fabricated rear lift block
• Includes heavy duty air bag spacer
• Includes longer U-bolts
• Vehicle Fitment: 2013–2018 RAM 3500 Diesel 4WD with factory rear air ride

Installation

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

Important Notes

The carrier bearing drop is necessary for models equipped with a two-piece rear drive shaft. Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement.