2019-2021 Cummins 2500 4WD 6" 4-Link Lift Kit (BDS1688H)
BDS Suspension expands its listings for the late model 2019+ Cummins 2500 4WD diesel trucks with new 6" 4-link conversion systems. Designed to improve the looks and performance of your new RAM, these new kits join existing radius arm variants to offer improved strength and handling on/off-road. This kit includes everything necessary to correctly lift them for improved offroad capability with room for larger tires while improving overall vehicle handling.
Tire & Wheel Combinations:
- 37x13.50 w/ 20x9 and 5.625"
- 37x12.50 w/ 20x9 and 4.5-5.625"
Notes:
- Will not fit rear air-ride equipped models
- Will not fit Power Wagon models
- Designed for diesel models trucks only
Installation:
- Click Here For Installation Instructions
- Difficulty: 4 (where 1 = easiest and 5 = complicated)
Part Number: BDS1688H

6" Front Coil Springs
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4.5" Rear Coil Box Kit
This Box Kit includes the following products:
- Rear Track Bar Bracket
- Track Bar Bracket Sleeve (2-1/8" long)
- 2 4.5” Rear Coil Spring
- 2 Rear Bump Stops
- 2 15" Sway Bar Links
- 4 Hourglass Bushings - EB1
- Rear Brake Line Bracket
- Rear Brake Line Tab
- 5/8" x 12mm ID x 1-.3/8" Sleeve
- 5 Bolt Packs
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4-Link Box Kit
This Box Kit includes the following products:
- Driver & Passenger Side 4-Link Brackets
- Bump Stops
- Front Track Bar Bracket
- Pitman Arm
- Weld in Bungs
- Machined 4-link Sleeve
- Driver & Passenger Side Brakeline Brackets
- Sway Bar Drop Bracket
- 3-1/4” Sleeve
- 4 Cam Plates
- BDS Badges
- CV Boot Large & Small
- 1/2-13 Rivet Nut
- Bolt Pack (Badge)
- Bolt Pack (Cam Plates)
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4-Link Box Kit
This Box Kit includes the following products:
- Upper & Lower Control Arms
- 4 Bushings (Large - Lower Control Arm)
- 4 Bushings (Small - Upper Control Arm)
- 1.00 x .120 x 3.25 Sleeve
- Straight Grease Zerk
- 90 Degree Grease Zerk
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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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Fox 2.0 Series Shocks (2x)
Improve ride quality and capability with the FOX 2.0 performance series IFP shocks. Specially designed for BDS lift systems, these FOX 2.0 aluminum body shocks offer improved cooling capacity and corrosion protection. These shocks use race-proven vehicle-specific valving along with an internal floating piston (IFP) monotube design to separate the shock oil from high-pressure nitrogen to eliminate aeration and maximize performance on/off-road.
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NX2 Series Shocks (2x)
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