BDS 4.5" Lift Kit, 2001-2010 LB7/LLY/LBZ/LMM



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Fits: 2001 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM Duramax Diesel Single Rear Wheel Only

All BDS Lift kits are special order, Please allow 40-45+ business days before kits ship

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 4-1/2" dramatically increasing ground clearance at the front crossmembers and improving operating geometry. A front differential skid plate comes standard, for increased off road protection. 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.

The rear is lifted with a tapered 3" block for easy installation.

This highly customizable kit gives you the choices you need to build your rig your way. Standard or narrow track knuckle kits, gas shocks, and dual steering stabilizers are just a few of the options and upgrades available for this 4-1/2" Chevy/GMC suspension lift kit.

Tire & Wheel Combinations:

2001-2007 Classic Body Style

  • 33" 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
  • 35" x 12.50" w/20 x 9 and 5.75" back spacing

2007-2010 New Body Style

  • 33" x 12.50" w/16 x 8 and 4-1/2" back spacing
  • 33" x 12.50" w/17 or 18 x 9 and 5.5" back spacing
  • 33" x 12.50" w/20 x 9 and 5.75" back spacing


  • Durable steering knuckles ensure compatibility with the ESC system
  • Enhanced off-road protection with heavy-duty skid plate system
  • Multipoint differential relocation brackets enhance front axle security and optimize CV angles
  • Enjoy peace of mind with the included Factory Protection Plus drivetrain warranty
  • Select between NX2 or FOX 2.0 gas shocks for enhanced performance options


  • Torsion bar relocation bracket 
  • Steel crossmembers
  • Multipiece differential relocation bracket
  • Heavy Duty skid plate 
  • CNC-machined ductile steering knuckles 
  • Sway bar drops 
  • Bump stop tensions 
  • Brake line brackets 
  • CV spacers
  • Necessary hardware


  • 1. Torsion Bar tool required to load/unload the torsion bars.
  • 2. Some welding required.
  • 3. Requires frame bracket modification and differential mount modification.
  • 4. Traction bars will not fit standard cab/short box models and are designed to work on vehicles with 4" to 8" of lift.
  • 5. 20" wheels with 5" to 5-3/4" backspacing recommended to reduce trimming.
  • 6. Gas models require exhaust modification.
  • 7. Narrow track knuckle will slightly increase turning radius.
  • 8. For tail high stance use #119157 add-a-leaf with the block kit or #069207 with leaf spring kit.
  • 9. Does not fit dual rear wheel trucks, Single rear wheel only