Rough Country 6" Lift Kit, 2001-2010 LB7/LLY/LBZ/LMM

Part# 29730A

$1,099.95 Includes Free Shipping.

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Fits: 2001 thru 2010 Chevy Silverado/GMC Sierra 2500HD LB7/LLY/LBZ/LMM Duramax Diesel 

*Will not fit trucks with overload springs, Dually models, or 2WD*

Take your Heavy Duty Truck to the next level with Rough Country's 6-inch Suspension Lift designed to run up to 35-inch tires. Gain increased ground clearance while maintaining factory ride quality with this all-inclusive kit designed to give the best of both worlds, on or off-road. 

Featuring CNC machined Knuckles, Heavy-duty front and rear laser cut cross members, and our expertly valved shocks this kit gives you a bang for your buck like no other! While a full set of high clearance drop crossmembers, differential drop brackets and torsion bar drop brackets keep everything at optimum angles.

Rough Country’s 6" Suspension Kit features premium shocks, giving your truck incredible ride-quality both on and off-road. Also included are a set of front CV spacers, sway-bar links, and a protective skid plate to give you everything you need to get rolling in one of our best kits, at our best price ever! This all-inclusive kit comes with everything you need, and best of all this kit features Rough Country’s Lifetime Replacement Warranty.


  • Maintains factory ride quality.
  • Increased ground clearance.
  • Designed to run 35x12.50 tires.
  • One-piece quality cast CNC machined knuckles.
  • Integrated skid plate does not sacrifice ground clearance.


  • Lifted knuckles
  • Front Crossmember
  • Rear Crossmember
  • Differential Drop Brackets(4WD Only)
  • Lower Integrated HD Skid Plate(4WD Only)
  • CV spacers(4WD Only)
  • Sway Bar Links
  • Hardware
  • Rear Lift Blocks with U-Bolts and Hardware
  • (4) Application valved shock absorbers

Important Notes:

  • Requires minor modification to the front differential.
  • If equipped with factory 17-inch wheels and purchasing new wheels - the new wheels must be 17-inch or larger.
  • Use of a 35x12.50 tire may require modification to the front valance.
  • If equipped with a gas engine, then an exhaust reroute modification may be needed for front driveshaft clearance.
  • Torsion bar unloading tool required for installation
  • Will NOT fit 2WD trucks, 4WD only