BDS 4 Inch Lift Kit w/ 4-Link | Ram 3500 w/ Rear Air Ride (2013-2018) 4WD Gas | 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, 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 4-inch lift kit with 4-Link conversion for the 2013–2018 RAM 3500 gas-powered truck. This kit is designed specifically for trucks equipped with the factory rear air ride option and is intended to improve stance, performance, and capability, providing 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, a track bar bracket for steering correction, bump stops, and brake line brackets. In the rear, the kit utilizes a high-strength fabricated lift block, a heavy duty air bag spacer, and longer u-bolts. Precision-tuned NX2 Nitro or FOX 2.0 Performance shocks are included front and rear depending on the selected option.

4-Link Conversion

The 4-Link conversion replaces the factory stamped steel radius arms 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 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.

Steering Correction

A forged drop pitman arm minimizes steering angle after the lift. Paired with a heavy duty track bar drop bracket, the system keeps steering geometry 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
• High-strength fabricated rear lift block with heavy duty air bag spacer and longer u-bolts
• Compatible with NX2 Nitro Series or FOX 2.0 Performance Series shocks (selected at time of purchase)

Specifications

• Lift Height: 4 inches
• Fitment: 2013–2018 RAM 3500 4WD Gas (factory rear air ride equipped)
• Tire Clearance: Up to 35 inches
• 4-Link brackets: 1/4-inch high-strength steel
• Pro-Ride coil springs: Full-length, gas-specific, progressive rate

Installation

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

Important Notes

• 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.
• 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.