BDS 5.5 Inch Lift Kit w/ 4-Link | Ram 2500 w/ Rear Air Ride (2014-2018) 4WD Gas | NX2 Nitro Series

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

Overview

BDS Suspension engineered this 5.5-inch lift kit with 4-Link conversion for 2014–2018 RAM 2500 gas-powered trucks equipped with the factory rear air ride system. Designed to improve stance, performance, and capability, the kit includes everything necessary to provide clearance for up to 37-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 and track bar bracket for steering correction, bump stops, brake line brackets, and precision-tuned nitrogen-charged shocks. A transfer case indexing ring and new transmission crossmember are supplied to allow use of the factory front driveshaft at this lift height. In the rear, the kit utilizes heavy duty air bag spacers, a track bar relocation bracket, bump stop extensions, sway bar links, and a matching set of shocks. New air ride leveling sensor brackets are included to re-position the ride height sensors, maintaining full air bag range of motion and factory-like ride height performance.

4-Link Conversion

The BDS 4-Link conversion replaces the factory stamped steel radius arms to optimize suspension geometry for improved handling characteristics, 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

A pair of full-length, gas-specific, progressive rate Pro-Ride coil springs are included to 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 and pairs 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 transfer case indexing ring to correct front driveline angles and allow use of factory driveshafts
• NX2 Nitro or FOX 2.0 Performance Series nitrogen-charged shocks for improved ride and off-road performance

Specifications

• Lift Height: 5.5 inches
• Compatible with: 2014–2018 RAM 2500 4WD Gas (OE Air Ride equipped)
• Tire Clearance: Up to 37 inches
• 4-Link bracket material: 1/4-inch high-strength steel
• Pro-Ride coil springs: Full-length, gas-specific, progressive rate, high tensile steel

Installation

• Estimated Time: 7–9 hours
• Difficulty: Difficult
• 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.