Application : 2007-2019 Chevrolet Silverado 2WD/4WD 2007-2019 GMC Sierra 2WD/4WD Description: The thickness is About 42 mm,but it can lift 2.5 inches. Rear Block is 2'' thickness, Silverado sierra 1500 have 1'' stock block, it will provide additional 1'' lift. NOTE: If your vehicle don't have 1'' stock(factory) block, it will provide additional 2'' lift. .
