5.5 inch Radius Arm Lift Kit with FOX 2.0 Shocks

Features:

• Provides a 5.5-inch front lift with gas-specific progressive-rate Pro-Ride coil springs

• Heavy-duty tubular radius arms increase strength, caster control, and suspension stability

• Forged drop pitman arm and track bar relocation bracket correct steering angles and recenter the axle

• Front sway bar correction brackets preserve OEM handling and balance

• HD transmission crossmember and 15° transfer case indexing ring included to maintain front driveline angles and factory shaft compatibility

• Includes FOX 2.0 Performance Series IFP shocks (front and rear) for enhanced ride control and off-road comfort

• Clears up to 37” tires with proper wheel setup

Elevate Stance and Control for Your RAM 3500 Gas Truck

The BDS 1687FS 5.5" Radius Arm Lift Kit is designed for 2019–2024 RAM 3500 4WD gas trucks with rear overload leaf springs, offering enhanced performance, improved ride quality, and the ability to run larger tires. This kit blends strength, control, and smooth travel on all terrain types, making it ideal for daily use or trail demands.

Heavy-Duty Radius Arms and Spring Design

BDS includes a set of high-strength tubular radius arms, replacing the OEM stamped arms. These upgraded arms improve suspension geometry and offer long-term durability. The included gas-tuned Pro-Ride coil springs provide a controlled lift and predictable handling across various driving conditions.

Precision Steering and Driveline Geometry

To accommodate the increased ride height, the system incorporates a forged drop pitman arm, a track bar bracket, and a transfer case indexing ring. These components help preserve optimal steering angles and enable use of the factory front driveshaft without causing vibration or binding.

Rear Suspension

The rear of the truck is lifted using fabricated steel lift blocks and extended U-bolts, complemented by FOX 2.0 Performance IFP shocks for consistent rear-end control, load support, and articulation.

Fitment

2019, 2020, 2021, 2022, 2023, 2024 RAM 3500 4WD Gas (w/ Rear Overload Leaf Springs)

• Engine: Gasoline

• Transmission: 6-bolt transfer case

Fitment Notes

• Not compatible with:

  • Diesel engine models

  • Rear air-ride suspension

  • Power Wagon variants

• Trucks with:

  • Manual transfer case require BDS122423 (shifter extension)

  • 2-piece rear driveshaft require BDS122406 (carrier bearing drop kit)

Recommended Wheel & Tire Fitment

• 37 x 12.50 tires

• 20 x 9 wheels with 5.625” backspacing
  (Trimming may be required based on tire brand and wheel offset)