1999-2007 Silverado Sierra Lift Kit 2WD 3" Front Spring Spacers + 1.5" Rear Blocks Made in USA Steel Road Fury TIG Welded FITMENT: Chevrolet 1999-2006 Silverado Sierra 1500 6 lug 2WD; 2007 fits 'Classic' only KIT CONTENTS: 2x Laser Cut Carbon Steel Spring Spacers, 2x Rear Lift Blocks, 4x Extended u Bolts and Installation Instructions TECHNICAL NOTES: Installation Time: 2-4 hours BENEFITS: American Automotive's Road Fury Series represents the most badass steel leveling product in the US. It's built to impress. Road Fury bolt-on is easy to install and is guaranteed to outlast your truck. There are many cues, once received, that makes it superior to other product. You will be proud to place this on your truck. LIFT: Front suspension lift does not occur in a 1:1 ratio with spacer thickness Chevrolet 1999-2006 Silverado 1500 6 lug 2WD; 2007 fits &#039;Classic&#039; only GM 1999-2006 Sierra 1500 6 lug 2WD; 2007 fits &#039;Classic&#039; only Front suspension lift does not occur in a 1:1 ratio with spacer thickness Spring compressor may be needed for installation An Alignment is Recommended After Install 2x Steel Spring Spacers 2x Tapered Rear Lift Blocks 4x Extended Square U Bolts Installation Instructions