1999-2007 GMC Sierra 1500 4WD Full Suspension Lift Kit with MAX Performance Shocks S15 ✘ NOT compatible with vehicles

✘ NOT compatible with vehicles equipped with rear shackle suspensions as they use a leaf UNDER axle and cannot support blocks

we recommend our Front strut spacer leveling kit for your newer model Colorado

Rear spacers from our proven Pro-Billet series are machined from 6061-T6 aircraft aluminum

Billet Aluminum Wheel Spacers

2x High-Strength Steel Add-A-Leaf Springs

1999-2007 GMC Sierra 1500 4WD Full Suspension Lift Kit with MAX Performance Shocks S15 ✘ NOT compatible with vehicles2x Front Adjustable Cold Rolled Steel MAX Torsion Keys 2x High Strength Steel Rear Tapered Lift Blocks 4x Premium Electrostatic Powder Coated U Bolts 4x Suspensions Branded MAX Performance Shocks 4x Premium Silicone Blend Shock Boots Installation Hardware and Instructions Notes: Compatible only with 4WD 6 Lug Models and 2007 Classic Model. THIS KIT WILL NOT WORK WITH REAR OVERLOAD SPRINGS OR DUALLY MODELS, AS LONGER U BOLTS ARE REQUIRED. We are proud