2014-2018 Cummins Air Ride 4" Lift Kit 3/4 Ton (BDS1631H)
Take your air ride Cummins up a notch with this BDS Suspension 4" Radius Arm Drop Suspension System. These kits include everything you'll need to correctly lift, improve ride quality across any terrain on & off-road, and maintain factory performance of the airbag system with no compromise on the range of motion.
Tire & Wheel Combinations:
- 37x12.50 w/ 17", 18", 20"x9 and 5.625"
- 35x12.50 w/ 17", 18", 20"x9 and 4.5"-5.625"
Notes:
- Not for use with factory rear coil spring suspensions
- Fits Diesel Models Only
- Will not fit RAM 2500 Powerwagon models
- Models equipped with a 2 piece rear driveshaft may require carrier bearing drop kit #122405
- Will not fit Cab and Chassis models
Installation:
- Click Here For Installation Instructions
- Difficulty: 3 (where 1 = easiest and 5 = complicated)
Part Number: BDS1631H
4" Front Coil Springs
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3.5" Rear AirRide Box Kit
This Box Kit includes the following products:
- Rear Track Bar Bracket
- Track Bar Bracket Sleeve (2-1/8" long)
- 2 3.5” Air Bag Spacers
- 3 Air Tank Spacers
- Bolt Pack - Air Tank Spacer
- 3 8mm x 65mm Bolts
- 3 5/16" SAE flat washers
- 2 Bolt Packs
- 2 Rear Bump Stops
- 2 15" Sway Bar Links
- 4 Hourglass Bushing - EB1
- 4 5/8" x 12mm ID x 1-.3/8" Sleeves
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4" Front Box Kit
This Box Kit includes the following products:
- Pitman Arm
- Trackbar Bracket
- Fish Wire
- 1/2" Bolt Tab
- 1/4” Spacer
- 4-6" Brakeline Relocation Bracket
- 5/16"-18 x 1" Type 23 Self Threading Bolt
- Weld in Bung
- Long Machined Spacer Sleeve
- Driver & Passenger Side Radius Arm Drop Bracket
- 1/2" Rivet nuts
- Spacer Sleeves
- Cable Tie
- Loctite
- 2 Bump Stops
- Rivet Nut Installation Bolt Pack
- Bolt Pack - Trackbar Bracket
- Bolt Pack - Rad Arm Drop Brackets
- Driver & Passenger Side Coils
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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 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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