Application 2001-2010 For Chevrolet Silverado 1500HD/2500HD/3500HD 2001-2010 For GMC Sierra 1500HD/2500HD/3500HD Fits 8 Lug Trucks Only Product Details This leveling unit does not come with installation instructions but is completely bolt-on; please consult a professional if you need support. Should take 2-4 hours to install and does not require any additional shock absorbers, cutting, welding, or other forms of modification. .
