2019-2021 Cummins 3500 4" Radius Arm Lift Kit (BDS1656H)
Designed to improve the looks and performance of your new RAM, these kits include everything necessary to correctly lift them for improved off-road capability with room for larger tires while maintaining on-road handling.
Tire & Wheel Combinations:
- 37x12.50 w/ 17x9/18x9/20x9 and 5.625"
- 35x12.50 w/ 17x9/18x9/20x9 and 4.5"
Notes:
- T-case indexing ring available for 6-bolt and 8-bolt equipped models, check the vehicle before ordering
- Will not fit rear air-ride equipped models
- Will not fit Dually Models
- Will not fit Cab and Chassis Models
- Kit designed for diesel models only
Installation:
- Click Here For Installation Instructions
- Difficulty: 4 (where 1 = easiest and 5 = complicated)
Part Number: BDS1656H

4" Front Coil Springs
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4" Front Box Kit
This Box Kit includes the following products:
- Pitman Arm
- Trackbar Bracket
- Fish Wire
- Driver & Passenger Side Brakeline Bracket
- Zip Ties
- 2 CV Joint Boot Clamps
- Driver & Passenger Sway Bar Drop
- 3 Bolt Packs
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Radius Arm Upgrade Kit
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Select whether your truck is equipped with the 6-bolt or 8-bolt T-Case Mounting

6-Bolt Transfer Case Indexing Ring
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8-Bolt Transfer Case Indexing Ring
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Select the rear box kit based on whether or not your RAM has factory Rear Overload Leaf.

3" Rear Box Kit w/o Overload
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3" Rear Box Kit w/ Overload
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NX2 Series Shocks (2x)
The BDS NX2 series gas shocks offer impressive performance on and off-road. Standard in most BDS lift kits, these nitrogen-charged, twin-tube shocks offer 10-stage velocity-sensitive valving for lightning-fast damper performance and control.
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