YIZBAP 6x5.5 to 6x135 Hubcentric wheel adaptersThickness: 1.5 inch (38.1mm)Vehicle Bolt Pattern: 6x5.5 (6x139.7mm)Wheel Bolt Pattern: 6x135mmThread Size: 14x1.5Hub Bore: 78.1mmHub Centric: 87.1mmPACKAGE INCLUDE:4 x Hubcentric wheel adapters (1.5 inch per unit) with 24 open end 14x1.5 thread lug nuts2x user manualFitment:Compatible with 14x1.5: 1999-2023 Silverado 1 Tahoe 4WD2001-2023 Tahoe2002-2006 Avalanche 1 Avalanche1992-1994 Blazer2003-2014 Express 1 Sierra 1 Yukon XL2000-2023 Yukon2003-2014 Savana 1 EscaladeNOTE: Please make sure that these are the correct application for your vehicle. We do not guarantee any fitment onto any vehicle, we only guarantee that you will receive the item described above.This spacer adapter includes open end lug nuts to secure the spacers onto your factory hubsIf your factory thread size is different from 14x1.5 - Need to purchase a set of open end lug nuts in the correct thread pitch (your factory thread pitch) to complete the installationYour Factory wheel studs may extend past the surface of the wheel spacers. In this case, you will need to:1) Shorten the factory studs2) The wheels need to have open slots (cavities) between mounting holes.3) Purchase a set of shorter studs and replace them with the factory studs.