2019-2023 Cummins 4" 4-Link Lift Kit (BDS1670H)

Fits

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Take your new Cummins to the next level with the BDS 4-link conversion system. These high-strength 4-link conversions offer improved handling, stability, strength, & caster control during wheel travel. In the rear of these 4" systems, And with NX2 Series or Fox 2.0 shocks to compliment the front setup for all-around impressive performance.  

Part Number: BDS1670H

• 2" Rear Lift Height
• Upper & Lower 4-Link Conversion with brackets
• Large LCA bushings
• Small UCA bushings
• Upgraded Pitman Arm
• Bump stop extension
• Front track bar bracket
• Brake Line Brackets
• All necessary hardware
• Weld-in bungs
• NX2 or Fox 2.0 or 2.5 series shocks

Tire Fitment:

• 37x13.50 w/ 5.625” Backspacing on 9” wide wheel
  37x12.50 w/ 5” Backspacing on 9” wide wheel

Indexing Ring Option

6 Bolt Indexing Ring

• Kits come standard with 6-Bolt indexing ring kit.

8 Bolt Indexing Ring

• Ram has 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 new shaft seal.

• Dually with 8-bolt Transmission (Aisin), require BDS122409 Def Relocation Kit
  
• Mega Cab’s with 8-bolt Transmission (Aisin), require BDS122409 Def Relocation Kit
  
• Vehicles equipped with a Manual T-case requires BDS122423 Manual transfer case shifter extension
  
• Vehicles equipped with a 2-piece rear drive shaft (carrier bearing), require BDS122406 Carrier bearing drop.