BDS 4 Inch Lift Kit w/ Radius Arms | Ram 3500 Diesel w/ Rear Air Ride (2019-2024) 4WD | 8-Bolt Indexing Ring | FOX 2.0 Performance Series

Includes an 8-Bolt indexing ring kit designed for Ram 3500 trucks equipped with the optional Aisin heavy-duty 6-speed transmission, which utilizes a different transfer case mounting bolt pattern. This kit also includes an internal shaft seal extension and new shaft seal. Paired with FOX 2.0 Performance Series shocks featuring a 2-inch impact extruded aluminum body, internal floating piston (IFP) monotube design, CNC machined 6061-T6 aluminum mounting ends, massive 5/8-inch hard chrome plated heat-treated alloy steel shaft, race-developed high-flow piston, application-specific valving, and a long-lasting clear anodized finish.

Overview

This 4-inch radius arm lift kit from BDS Suspension is designed for factory rear air bag equipped Ram 3500 diesel trucks (2019–2024) 4WD. The 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, heavy-duty replacement radius arms, a forged drop pitman arm, a track bar bracket for steering correction, sway bar relocation, and brake line brackets. A transfer case indexing ring and new transmission crossmember are included to allow use of the factory front driveshaft at this lift height. In the rear, the kit uses a high-strength fabricated lift block, heavy-duty air bag spacers, and longer U-bolts. All variants include precision-tuned shocks front and rear.

HD Radius Arms

In place of the factory stamped steel radius arms, BDS supplies a pair of high-strength tubular radius arms. These arms mount into the factory location and offer caster adjustment for a wide range of lift heights, along with an OE-style rubber bushing at the frame mount for smooth, quiet, service-free operation.

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.

Steering Correction

A forged drop pitman arm minimizes 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 tubular radius arms improve strength, handling, and caster control
• Diesel-specific progressive rate Pro-Ride 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
• HD transmission crossmember and transfer case indexing ring to correct front driveline angles and allow use of factory driveshafts
• High-strength fabricated rear lift block with heavy-duty air bag spacers and longer U-bolts
• Available with NX2 Nitro Series or FOX 2.0 Performance Series shocks front and rear

Specifications

• Lift Height: 4 inches
• Tire Clearance: Up to 35 inches
• Application: 2019–2024 Ram 3500 Diesel 4WD w/ Factory Rear Air Ride
• Kits come standard with 6-Bolt indexing ring; 8-Bolt option available for Aisin transmission-equipped trucks

Installation

• Estimated Time: 6–8 hours
• Difficulty: Moderate
• Special Tools Required: Pitman Arm Puller

Important Notes

• Fits OE equipped air ride systems only
• Dually with 8-bolt Transmission (Aisin) requires BDS122409 DEF Relocation Kit
• Mega Cabs with 8-bolt Transmission (Aisin) require BDS122409 DEF Relocation Kit
• Vehicles equipped with a Manual T-case require BDS122423 Manual Transfer Case Shifter Extension
• Vehicles equipped with a 2-piece rear drive shaft (carrier bearing) require BDS122406 Carrier Bearing Drop