8 Inch Lift Kit w/ 4-Link | Ram 3500 Diesel 4WD (2013-2018) | 5 Inch Block & Add-A-Leaf | 8-Bolt Indexing Ring | FOX 2.0 Performance Series | BDS Suspension

Configured with a 5-inch cast iron block kit and dual add-a-leaf in the rear, providing a level front-to-rear stance, correct pinion angles, reduced axle wrap, and a more controlled feel while maintaining factory payload ratings. Includes an 8-Bolt indexing ring kit designed for Ram 3500 trucks equipped with the optional Aisin heavy-duty 6-speed transmission and its different transfer case mounting bolt pattern; this kit also includes an internal shaft seal extension and new shaft seal. Equipped with FOX 2.0 Performance Series IFP monotube shocks featuring CNC machined 6061-T6 aluminum mounting ends, a massive 5/8-inch hard chrome plated alloy steel shaft, race-developed high-flow piston design, and application-specific valving for maximum performance.

Overview

The BDS Suspension 8-inch lift kit with 4-Link conversion is engineered specifically for 2013–2018 Ram 3500 diesel-powered 4WD trucks. This kit is designed to improve stance, performance, and capability, providing clearance for up to 40-inch tires. Up front, the kit includes diesel-specific Pro-Ride coil springs, a 4-Link control arm conversion with mounting hardware, a forged drop pitman arm, a track bar bracket for steering correction, sway bar links, bump stops, stainless steel brake lines, 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 uses either a block and add-a-leaf combination or optional full replacement BDS GlideRide leaf springs, along with new U-bolts, brake line brackets, and a matching set of shocks.

4-Link Conversion

The BDS 4-Link conversion replaces the factory stamped steel radius arms with a bolt-on system using high-strength 1/4-inch steel brackets. HD upper and lower control arms correct axle positioning while limiting caster change throughout wheel travel, optimizing suspension geometry for improved handling, strength, and stability.

Pro-Ride Coil Springs

A pair of full-length, diesel-specific, progressive rate Pro-Ride coil springs provide the correct lift height and smooth, predictable ride across various terrains.

Features

• Heavy duty 4-Link improves strength, handling, and caster control
• Front high-strength progressive rate coil springs
• Front track bar relocation bracket to re-position axle
• Forged drop pitman arm to correct steering angles
• Front sway bar correction links to maintain handling performance
• HD transmission crossmember and transfer case indexing ring to correct front driveline angles and allow use of factory driveshafts
• Stainless steel front brake lines
• Rear U-bolts and brake line brackets included
• Clearance for up to 40-inch tires
• Available with NX2 Nitro Series or FOX 2.0 Performance Series shocks

Installation

• Estimated Time: 10 hours
• Difficulty: Difficult
• Tools Required: Step Drill Bit, Drill / Bit Set, Pitman Arm Puller, Welding Equipment

Important Notes

• A carrier bearing drop kit will be required for vehicles with a 2-piece rear driveshaft.
• Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement.