Superlift K121 Silverado, Sierra lift kit

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1999-06 4WD Chevy Silverado, GMC Sierra 1500 6" lift kit, Superide shocks

Product No: K121 SL

Availability: In stock

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Important Notes

** Fits1999 New Body style and 2007 Classic.
** Will not work with electronic controlled shocks.
** System allows use of factory spare tire / wheel

Quick Overview

For optimal service life and exceptional drivability, install the Superlift 6" knuckle lift kit on your Silverado or Sierra 1500. This design keeps the factory upper control arms in their original location while lowering the factory control arms.

Replacement steering knuckles span the increased distance between the control arms. The lower control arm crossmembers are constructed using 1/4" thick steel plate and are a one-piece, full width design. The front differential is protected by a skid plate that does not require the removal of cast reinforcement webbing as seen on other brands.

  • Driver and passenger side cast ductile iron knuckles
  • Front and rear crossmembers
  • Frame reinforcement bracket
  • Front sway bar end link
  • Differential drop bracket
  • Torsion bar drop brackets
  • Belly pan
  • Rear compression stop
  • Rear Brake line brackets
  • 5" rear block kit
  • 4 Superide shocks
  • Lifetime Warranty and Satisfaction Guarantee

View lift kit installation instructions

View rear block kit installation instructions

Required and/or Related Items

    • Make: Chevrolet, GMC
    • Model: 1500
    • Vehicle: 1999-06 Silverado, Sierra 1500 6" lift kit, Superide shocks
    • 2or4: 4WD
    • Tire Size: 35x12.50 8" wheel with 4.625" BS
    • Upsell: 92065 SL


Superlift lift kit fits the following models:
1999 Silverado, Sierra 1500
2000 Silverado, Sierra 1500
2001 Silverado, Sierra 1500
2002 Silverado, Sierra 1500
2003 Silverado, Sierra 1500
2004 Silverado, Sierra 1500
2005 Silverado, Sierra 1500
2006 Silverado, Sierra 1500

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