BDS 4 Inch Lift Kit w/ 4-Link | Ram 2500 Diesel w/ Rear Air Ride (2014-2018) 4WD | NX2 Nitro Series Shocks

Configured with NX2 Nitro Series shocks front and rear. NX2 shocks feature a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends for increased strength, a 1-3/8-inch high-flow piston, self-lubricating seals, and a silver powder coat finish.

Overview

BDS Suspension engineered this 4-inch lift kit with 4-Link conversion for the 2014–2018 RAM 2500 diesel-powered truck. Designed for trucks equipped with the factory rear air ride option, this kit improves stance, performance, and capability while providing clearance for up to 35-inch tires.

Up front, the kit includes diesel-specific Pro-Ride coil springs, 4-Link control arms with conversion mounts, a forged drop pitman arm, a track bar bracket for steering correction, bump stops, brake line brackets, and precision-tuned shocks. In the rear, the kit utilizes heavy duty air bag spacers, a track bar relocation bracket to correct axle positioning, bump stop extensions, sway bar links, and a matching set of shocks. New air ride leveling sensor brackets are also supplied to re-position the ride height sensors, allowing the system to perform at factory ride height and maintain full air bag range of motion.

4-Link Conversion

The factory stamped steel radius arms are converted to the BDS 4-Link to optimize suspension geometry for better handling characteristics while adding strength and stability. This bolt-on upgrade uses high-strength 1/4-inch steel brackets that allow mounting of HD upper and lower control arms to correct axle positioning while limiting caster change throughout wheel travel.

Pro-Ride Coil Springs

A pair of full-length, diesel-specific, progressive rate Pro-Ride coil springs provide the correct lift height and a smooth, predictable ride across various terrains. Manufactured from high tensile steel with a properly sized wire diameter, these direct OE replacement coil springs are engineered for maximum reliability without premature coil bind.

Steering Correction

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

Features

• Heavy duty 4-Link arms improve strength, handling, and caster control
• High-strength progressive rate coil springs for a smooth ride on any terrain
• Track bar relocation brackets to re-position axle
• Forged drop pitman arm to correct steering angles
• Front sway bar correction to maintain handling performance
• HD transmission crossmember and t-case indexing ring to correct front driveline angles and allow use of factory driveshafts
• Choice of BDS NX2 Nitro Series or FOX 2.0 Performance Series shocks for improved ride and off-road performance
• Air ride leveling sensor brackets to maintain factory air bag range of motion
• Clearance for up to 35-inch tires

Installation

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

Important Notes

For OE Air Ride systems only.