Base Kit

This Box Kit includes the following products:

  • Driver & Passenger Side Torsion Bar Bracket
  • Front Track Bar Bracket Spacer
  • Rear Track Bar Bracket Spacer (Grooved)
  • Torsion Bolt Retaining Bracket
  • Bolt Pack - Torsion Bar Brackets


6.5" Box Kit


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Front Box Kit (1 of 2)

5-6.5" Front Box Kit

This Box Kit includes the following products:

  • Front Cross Member
  • Cross Member Brace
  • Driver & Passenger Side Front Brake Line
  • Brake Line Clip
  • Brake Line Crush Washer
  • .750 x .134 x 1.650 DOM Sleeve
  • 0.750 x 0.134 x 1.255 Sleeve
  • Offset Polyurethane Spacer
  • Front Sway Bar Links
  • Bolt Pack
  • Bolt Pack - Front Brake Lines

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Front Box Kit (2 of 2)


5-6.5" Front Box Kit

This Box Kit includes the following products:

  • Rear Cross Member
  • Driver, Passenger & Center Differential Bracket
  • Thread locker
  • Sleeve - Center Differential Bracket
  • Bushing - Center Differential Bracket
  • Cable Ties
  • Bolt Pack - Lower Control Arms
  • Bolt Pack - Differential Drop

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Knuckle Box Kit (1 of 2)


Driver's Side 6.5" Knuckle Box Kit


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Knuckle Box Kit (2 of 2)


Passenger Side 6.5" Knuckle Box Kit


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Skid Plate Box Kit


6.5" Skid Plate Box Kit


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Rear Lift Option

This Box Kit includes the following products:

  • Cable Ties
  • 8 3/4"-10 Serrated Flange Nuts
  • Bolt Pack - Rear Brackets
  • Driver & Passenger Side Rear Blocks
  • 4 3/4 x 3-1/4 x 15-1/2 Square U-Bolt Black (Non-Overload Only)
  • 4 3/4 x 3-1/4 x 15-1/2 Square U-Bolt Black (Overload Only)

5" Rear Lift Block w/o Overloads

5" lift blocks and u-bolts designed for trucks NOT factory equipped with a separate overload leaf in the rear spring pack

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5" Rear Lift Blocks w/ Overloads

5" lift blocks and u-bolts designed for trucks factory equipped with a separate overload leaf in the rear spring pack. (Includes DRW)

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Front Shocks


2011-2017 Duramax 3-5" Lift Front NX2 Shock Absorber (BDS85621)-Shocks-BDS-BDS85621-Dirty Diesel Customs

Front 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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2020-2021 Duramax 5-6.5" Lift Front Fox 2.0 Shock Absorber (FOX98224621)-Shocks-BDS-FOX98224621-Dirty Diesel Customs

Front Fox 2.0 Series 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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Rear Shocks