Product Parameters: Bolt Pattern: 6x5.5''/6x139.7mmThread Pitch: 14x1.5Thickness: 1.5''Centre Bore: 78.1 mmQuantity: 4 PCS Wheel Spacers wtih Hub Compatible Models:Compatible with Cadillac Fit for Escalade 1999-2000?2002-2022Compatible with Chevrolet Fit for Avalanche 2007-2013Fit for Avalanche 1500 2002-2006Fit for Blazer 1992-1994Fit for Express 1500 2003-2014Fit for Express 2500 SJ 2002-2019Fit for K1500 Suburban 1992-1999Fit for Silverado 1500 1999-2022Fit for Suburban 2015-2021Fit for Tahoe 2001-2021Compatible with GMC Fit for Savana 1500 BR 2003-2014Fit for Sierra 1500 1999-2021Fit for Yukon 2000-2021Fit for Yukon XL 2015-2021Fit for Yukon XL 1500 2000-2014 Installation Advice:1.Need to clean the rust on the surface of the axle before installation.2.If the wheel spacers is removed, it is recommended to replace the nut.3.It is better not to tow the car with the wheel spacers installed.4.If the distance between the spacser and the axle is too big, you can install a Hubcentric Rings.5. It is necessary to regularly check whether the gasket and bolts are loose.