This Superlift Complete Knuckle Style suspension lift kit for the provides 6” of lift height.

Fitment
| Years | Drive | Make | Model |
|---|---|---|---|
| 1999-2006 | 4WD | Chevrolet | Silverado 1500 |
| 2007 | 4WD | Chevrolet | Silverado 1500 Classic |
| 1999-2006 | 4WD | GMC | Sierra 1500 |
| 2007 | 4WD | GMC | Sierra 1500 Classic |
Features
- 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.
Important Notes
- Installation time: 8 hours
- Difficulty level: 4 of 5
- Torsion bar unloading tool required.
- Requires frame bracket and differential mount modification.
- WillNOTfit HD models.
- WillNOTfit 1999 "classic" models
- If equipped with 17" factory wheels; 17" or larger aftermarket wheels must be used.
- WILLfit 2007 "classic" models.
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WARNING: Cancer and reproductive harm –
Superlift Suspension K121 6" Lift Kit w/ Superlift Shocks
1999-2006 Chevrolet Silverado/GMC Sierra 1500/ 2007 Chevrolet Silverado/GMC Sierra 1500 Classic 4WD
1999-2006 Chevrolet Silverado/GMC Sierra 1500/ 2007 Chevrolet Silverado/GMC Sierra 1500 Classic 4WD
- SKU : SLS-K121
- Part Number : K121
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Regular Price
$1,499.99
Special Price $1,274.99
Special Price $1,274.99
Regular Price
$1,499.99
Special Price $1,274.99
Special Price $1,274.99
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