2019-2024 Cummins 8" 4-Link Lift Kit (1728H)

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Fits

This BDS system converts your truck to an 8" lifted 4-Link setup monster! The full replacement 4-Link system is centered around 4 massive control arms featuring greaseable ends and is set up to correct the alignment tire placement inside the wheel well, while reducing caster change through wheel travel creating a more controlled feel both on and off-road. 

Part Number: 1728H

• 8" diesel specific progressive rate coil springs provide a smooth controlled ride in any terrain
• Forged drop pitman arm is supplied to correct steering angles
• HD bar drop bracket to re-center the front axle
• Polyurethane bump stops to limit up travel and brake line brackets to allow full droop
• Sway bar drop brackets reposition the OE sway bar for optimal performance
• Factory stamped steel radius arms are converted over to 4-link using a pair of 1/4" steel brackets
• High strength upper & lower control arms designed to limit caster control throughout suspension travel for more predictable handling characteristics
• HD replacement transmission crossmember as well as a transfer case indexing ring to reposition the front driveline output which will need to be used in combination with an aftermarket front driveshaft (not included with kit).

Wheel & Tire Combinations:

• 40x13.50 w/17x9 and 4.5-5.5" back spacing
• 40x13.50 w/20x9 and 4.5-5.5" back spacing

Base Kit Components:

• Will NOT work with Mega Cab Models with 8-bolt Transmission (Aisin)
• NOT compatible with DRW models
• Will NOT work with cab and chassis
• Recoil Traction bars recommended
• Designed for use on diesel models only
• Will NOT fit trucks with rear airbags
• This kit requires the use of an aftermarket front driveshaft (not provided) in addition to the (provided) indexing ring kit - BDS122624 (6-bolt) or BDS122421 (8-bolt). Both must be installed, however due to variations between truck configurations BDS recommends installing the kit prior to taking measurements for the aftermarket front driveshaft to ensure correct length. Vehicle can be driven without front driveshaft. Kit was tested with a Drive Line Plus flange and driveshaft, however other high angle driveshaft options can be used.