2001-2010 Duramax 7" Lift Kit (BDS189H)
This unique High Clearance suspension lift kit utilizes high arched crossmembers that blend perfectly with the angle of the factory-installed lower control arms for a completely integrated look while lifting your vehicle a full 7" dramatically increasing ground clearance at the front crossmembers and improving operating geometry. Torsion bars are mounted directly to the top of the lower a-arm eliminating the need to drop the torsion bar crossmember.
Tire & Wheel Combinations:
- 35" x 12.50" w/16 x 8 and 4-1/2" back spacing
- 35" x 12.50" w/17 or 18 x 9 and 5.5" back spacing
- 37" x 12.50" w/20 x 9 and 5.75" back spacing
Notes:
- Torsion Bar Tool required to load/unload the torsion bars.
- Some welding is required.
- Requires frame bracket modification and differential mount modification.
- Traction bars will NOT fit standard cab/short box models and are designed to work on vehicles with 4" to 8" of lift. Will NOT work on long-bed models.
- 20" wheels with 5" to 5-3/4" backspacing are recommended to reduce trimming.
- Gas models require exhaust modification.
- A narrow track knuckle will slightly increase the turning radius.
- For tail high stance use #119157 add-a-leaf with the block kit or #069207 with the leaf spring kit.
- Dually applications will require custom u-bolts.
Installation:
- Click Here For Installation Instructions
- Difficulty: 4 (where 1 = easiest and 5 = complicated)
Part Number: BDS189H
Note: This selection is just for reference purposes
This system is available with two different knuckle designs. The standard knuckle widens the track but does not affect the turning radius. The narrow track knuckle reduces the total track width change by about 1.5" overall but does increase the turning radius slightly.
Standard Knuckle
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Narrow Track Knuckle
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HD Standard Knuckle Kit
This Box Kit includes the following products:
- Driver & Passenger Side Steering Knuckle
- Bolt Pack - CV Spacer
- 12 10mm-1.5 x 70mm SHCS
- 2 CV Spacers
- 2 Steering Stops
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7" HC Crossmember Kit
This Box Kit includes the following products:
- Driver & Passenger Side Torsion Bar Relocation
- Front & Rear Crossmember
- Differential Tube
- Boot Extension
- Boot Extension O-rings
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7" HC Box Kit
This Box Kit includes the following products:
- 2 Torsion Bar Bracket Spacers
- 750 x .090 x 2.950 Sleeve
- Weld-In Plate
- 2 Sway Bar Links
- 2 Hourglass Bushings
- 4 Shock Stem Bushings
- 2 .750 x .090 x 1.575 Sleeves
- Loctite
- 6 11.5in Nylon Cable Ties
- 2 GM HD Rear Bump Stops
- 4 7/16 Stem Washers
- 2 Offset Sway Bar Brackets
- 2 Pyramid Bushings
- Differential Drop Bracket
- Differential Skid Plate
- 2 Bump Stops
- Drop Bracket
- Front Skid Plate
- 2 Bushings - Differential Bracket
- Bolt Pack - Rear Bump Stop
- Bolt Pack - Main
- Bolt Pack - Sway Bar Links
- Bolt Pack - Torsion Bar Brackets
- Bolt Pack - Bump Stops/Misc.
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5" Flat Rear Block Kit
This Box Kit includes the following products:
- 2 5" Flat Blocks
- 4 9/16 x 2-916 x 15 Square U-Bolts
- 8 9/16 SAE Flat Washers
- 8 9/16 Fine High Nuts
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5" Lift Leaf Spring (2x)
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Required if you have selected full Leaf Spring replacements.

U-Bolts - (2-9/16"X11-3/8") (4x)
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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)
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