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SUP- K121 Superlift 99-06 Chevy GMC 1500 6IN Suspension Lift Kit w/ Shocks

SUP- K121 Superlift 99-06 Chevy GMC 1500 6IN Suspension Lift Kit w/ Shocks

Your Price: $999.95
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Part Number:SUPK121
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  • $-435.00
SUP- K121 Superlift 99-06 Chevy GMC 1500 6IN Suspension Knuckle Lift Kit w/ Shocks

So you got yourself a Chevy, Time to jack it on up! 6 Inches and 35's go a long way for this truck. Superlift is setting a new standard for value with its new offering for the 99-06 GM 1500 4WD Pickups and SUV’s.  All fabricated components of this kit were designed, manufactured and packaged right here in the USA.   You won’t find quality craftsmanship like this anywhere else or anywhere near this unbelievable price point. 

This kit is packaged complete with everything you need to do the job right, requires less differential and frame modification than most competitor kits and eliminates the need for a replacement front driveshaft.  It includes one-piece, laser cut, CNC formed, high-clearance cross members, a protective front skid plate, axle relocation brackets, front axle CV spacers, torsion bar relocation brackets, extended sway bar links and Superlift Superide shocks.  The included cast ductile iron steering knuckles simplify installation and yield the best in class alignments results.  Rear lift is achieved via tried and true 5” cast iron blocks to provide a nice level stance front to rear.

Packaged standard with the Superlift Superide shocks we also offer upgrade Superlift Superide SS shocks by Bilstein.  An optional steering stabilizer is also available.

  • Stylish high-clearance cross members are one-piece, laser cut, CNC formed and built to withstand a lifetime of use and abuse.
  • Replacement steering knuckles maintain OE alignment specifications.
  • Minimal differential modification required.
  • Longer front anti-sway bar links included.
  • Rear lift achieved via tried and true 5" cast iron blocks for superior strength.
  • Applicable with Auto Trac models – does not require replacement front driveshaft.
  • Allows use of factory spare tire / wheel.
  •  Lifetime Warranty and Satisfaction Guarantee.
  •  Easy to follow DIY friendly installation instructions.


In the Box

  • New Cast Steering Knuckles
  • Heavy-Duty Differential Drop Brackets
  • New Heavy-Duty Front and Rear Cross-Member
  • Torsion Bar Drop Brackets
  • CV Axle Spacers
  • Compression Stop Extensions
  • Front Extended Sway Bar End links
  • (4) Superlift Superide Hydrolic Shock Absorbers
  • Hardware & Installation Instructions

Tire Fitment:

Fits 35 x12.5x17-20 inch tires with 8-9 inch wheel width and 4.5 inch backspacing.


  • Torsion bar unloading tool required.
  • Requires frame bracket and differential mount modification.
  • Will NOT fit HD models.
  • Will NOT fit 1999 “classic” models
  • If equipped with 17” factory wheels; 17” or larger aftermarket wheels must be used.
  • WILL fit 2007 “classic” models.

Shipping for this item is FREE in the united states except Hawaii & Alaska. We are an Automotive Accessory Store and are a Superlift Dealer that specialize in Truck, Jeep, and Offroad Accessories. Have Questions about the right lift to choose, Our trained tech support will help you choose the right kit and even help you out of a jam on the install too. We have or can get almost any Offroad or Performance part you need so if its not listed please feel free to give us a call.

Need Help? Call 804-OFF-ROAD / 804-633-7623.

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