2013-2018 Cummins 4 Link 8" Lift Kit (BDS1614H)
The new 8" system is built around the same 4-link conversion system that is used for the 4" and 6" kits. By converting the stock radius arm front suspension to a 4-link, we are able to better control the caster change through the full suspension travel, create much better handling characteristics and maintain a quality ride unloaded without sacrificing payload.
Tire & Wheel Combinations:
- 40" x 13.50 w/ 17" x 9" and 4.5" - 5.5"
Notes:
- Not for use with factory rear airbag suspensions
- Diesel Only
- Kits come standard with a 6-Bolt indexing ring kit. If equipped with heavy-duty 8-bolt t-case order 122813 in place of 122623
- Carrier bearing drop kit will be required for 2-piece rear driveshaft #122405
- Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement
- Will not fit Cab and Chassis models
Installation:
- Click Here For Installation Instructions
- Difficulty: 3 (where 1 = easiest and 5 = complicated)
Part Number: BDS1614H

8" Front Coil Springs
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8" Front Box Kit
This Box Kit includes the following products:
- Driver & Passenger 4-Link Brackets
- 2 BDS Badges
- 2 Rivet Bolt Packs
- 2 1/16” Shim
- 2 1/8in Shim
- 2 weld-in bungs
- 2 Long Machined Spacer Sleeves
- 2 Spacer Sleeves
- 2 1.250 x 0.312 x 0.875
- Rivet nut installation bolt pack
- 2 1/2" Rivet nuts
- Pitman Arm
- 8” BDS track bar bracket
- 2 Trackbar Cam (4 positions)
- 1.00 x 0.2345 x 0.25 Spacer
- 2 1/2" Bolt Tab
- Fish Wire
- 2 Sway Bar Links
- 2 Clevis Bracket
- 2 Sleeve - Upper & Lower
- 2 Offset Spacers
- 2 Brake Line Brackets
- 2 5/16” Self Taper
- 2 Bump Stop Extensions
- 2 Poly Bump Stops
- 2 Front Brake Lines
- 4 Crush washers
- 2 Clips
- 8 Zip ties
- 4 Wire clips
- Bolt Pack - Bump Stop Hardware
- Bolt Pack
- Bolt Pack - 4 Link Brackets
- Bolt Pack - Front Sway Bar Links
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4-Link Box Kit
This Box Kit includes the following products:
- Upper & Lower Control Arm 4-Link Conversion
- 2 Straight Grease Zerks
- 4 Sleeves
- 4 Bushings (Large - Lower Control Arm)
- 2 Bushings (Small - Upper Control Arm)
- 2 90 Degree Grease Zerks
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Rear Box Kit
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Ram trucks have an optional Aisin heavy-duty 6-speed transmission available in the 3500 trucks that utilize a different transfer case mounting bolt pattern (8-bolt). The 8-bolt kit also includes an internal shaft seal extension and a new shaft seal.
6-Bolt Transfer-Case Indexing Ring
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8-Bolt Transfer-Case Indexing Ring
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4.5" Leaf Springs (2x)
Choose this option if you want full leaf spring replacements
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Add a leaf
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5" Rear Block Kit
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No Thanks

NX2 Series Shocks | Single (2x)
- Select this option if you would like Single NX2 Series front shocks.
- DO NOT select this option if you would like dual shocks in the front. If you would like dual front shocks, skip to the rear shock selection and select (6).
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