BDS 4 Inch Lift Kit w/ 4-Link | Ram 2500 w/ Rear Air Ride (2014-2018) 4WD Gas | FOX 2.0 Performance Series Shocks

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

Overview

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

Up front, the kit includes gas-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, 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, gas-specific, progressive rate Pro-Ride coil springs provide the correct lift height and smooth, predictable ride across various terrains. Manufactured from high tensile steel as direct OE replacement coil springs, they are engineered with properly sized wire diameter for maximum reliability without premature coil bind.

Steering Correction

A forged drop pitman arm minimizes the steering angle, paired with a heavy duty track bar drop bracket to keep 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 the 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

Specifications

• Lift Height: 4 inches
• Tire Clearance: Up to 35 inches
• 4-Link conversion brackets: 1/4-inch high-strength steel
• Pro-Ride coil springs: High tensile steel, progressive rate, gas-specific
• Compatible with: 2014–2018 RAM 2500 4WD Gas 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

• For OE Air Ride systems only.
• 6.4L gas models will require exhaust modification to clear the front driveshaft.
• 5.7L gas models may require exhaust modification as well.
• The vehicle can be driven without the front driveshaft to an exhaust shop for modifications to be made before reinstalling the driveshaft.