Pro Comp K1056B 6" Lift Kit

Pro Comp K1056B 6
2040.99In stock
  • Brand: Pro Comp
  • |
  • SKU: PC-K1056B/K1056BP/K1056BMX
  • |
  • Part Number: K1056B/K1056BP/K1056F
1999-2006 Chevrolet Silverado 1500 4WD Gas/2007 Chevrolet Silverado 1500 Classic 4WD Gas/1999-2006 GMC Sierra 1500 4WD Gas/2007 GMC Sierra 1500 Classic 4WD Gas/2007 Chevrolet Silverado 1500 Classic 4WD Diesel/2007 GMC Sierra 1500 Classic 4WD Diesel
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Product Details

Pro Comp Suspension’s traditional "Drop Bracket" 6” lift systems for the 1999 to 2006 GM 1500 trucks feature one-piece cross members and rigid upper control arm relocation brackets that preserve factory track width, steering geometry, and alignment specifications. Retaining the factory steering knuckles allows the use of factory rims. Rear lift is achieved with 4” tall blocks and add a leafs. Approximate installation time for complete suspension system is 8-10 hours. Six"es of lift allows the use of 35” x 12.50” tires on 16”-20” diameter rims with up to 5.25” backspacing. Systems are available with a variety of performance shock options including: nitro charged twin tube ES9000 shocks, mono-tube Pro Runner shocks or mono-tube adjustable MX6 shocks.

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1999-2006ChevroletSilverado 15004WDGas
2007ChevroletSilverado 1500 Classic4WDGas
1999-2006GMCSierra 15004WDGas
2007GMCSierra 1500 Classic4WDGas
2007ChevroletSilverado 1500 Classic4WDDiesel
2007GMCSierra 1500 Classic4WDDiesel


  • Lift Height: 6"
  • Front Lift: Drop Brackets
  • Front/Rear Crossmembers
  • Compression Struts
  • Front Sway Bar Spacers
  • Bump Stops
  • Torsion Bar Drop Brackets
  • Upper Control Arm (A-Arm) Mount Brackets


151099B-1Kit Box
151099B-2Kit Box
151099B-3Kit Box
151099B-5Kit Box
151256CV Front Drive shaft
2Front 2.0 IFP Fox Shocks
2 Rear 2.0 IFP Fox Shocks

Important Notes

  • 00-04 vehicles must use 16" or larger diameter rims. 05-13 vehicles must use 17" or larger diameter rims.
  • Vehicle will require alignment after kit is installed.
  • Hubcentric rings are recommended for 99-10 GM 1500 vehicles.
  • Tie Rod Reinforcement Kit (Part No. 63305) threads onto factory tie rods to provide extra support for GM vehicles equipped with oversize tires and wheels.

Tire Info
Max Tire Size35" x 12.50"
Wheel Diameter16" +
Wheel Width8" - 9.5"
Backspace4" - 5"
Bolt Pattern6 x 5.5"
Bolt Code83
Lug Nut Size14mm x 1.5
Lug Nut KitPXA26144