Brand ?PHILTOP (Wheel Spacers Specification)Bolt Pattern 6x5.5, Thread Pitch M14x1.5, Thickness 1.25", Hub/Center Bore 78.1mm (Vehicle Application)This 6x5.5 Wheel Spacers set fit for Sierra 1500 1999-2022,Yukon XL 2015-2022,Yukon XL 1500 2000-2014,Yukon 2000-2022,Tahoe 1995-2022,Suburban 2015-2022,Savana 1500 2003-2014,Escalade 2002-2022,Escalade 1999-2000,Blazer 1992-1994,Avalanche 2007-2013,Avalanche 1500 2002-2006,Astro 2003-2005,K1500 Suburban 1992-1999 (High Quality Guarantee)The 1.25" Wheel Spacers are CNC machined to a precise standard to make the installation fit more better, so as to prevent wheel vibration and maintain the stock driving. They are forged from anodized 6061-T10 Aluminum Alloy, making them more durable and corrosion resistant (Aggressive Driving Experience)The Wheel Spacers Adapters can move your wheels further out from the wheel hub, allow for larger tire installation to the vehicle. Installing the wheel adapters can fix brake caliper clearance issues, correct tire friction issues, increase cornering stability, give your vehicle a more aggressive stance (Professional Services)If there is a problem with the product, PHILTOP provide you with a free return/exchange service. You can use the Fitment Guide to check the suitability of your model before purchase. Please feel free to contact us with any questions regarding our products and services. PHILTOP Wheel Spacers / Adapters Give your vehicle a wider stanceProvide a better drving experienceAllows installation of wider wheels & tiresProve more room for your wheels drive more stablyIncrease Tire clearance can help tremendously with clearance and rubbing issues Compatible Year and Model List: Sierra 1500 1999-2022 Tahoe 1995-2022 Yukon 2000-2022 Yukon XL 1500 2000-2014 Escalade 2002-2022 Suburban 2015-2022 Avalanche 1500 2002-2006 Yukon XL 2015-2022 Avalanche 2007-2013 K1500 Suburban 1992-1999 Astro 2003-2005 Savana 1500 2003-2014 Blazer 1992-1994 Escalade 1999-2000 Wheel Spacers Specification: Bolt Pattern: 6x5.5 inch / 6x139.7mm, 6 Lug Thickness: 1.25" / 32mm Thread Pitch: M14x1.5 Hub/Center Bore: 78.1mm CNC Machined The Wheel Spacers are CNC machined to a precise standard to make the installation fit more better, so as to prevent wheel vibration and maintain the stock driving. 6061-T6 Aluminum alloy PHILTOP Wheel Spacers are forged from anodized black 6061-T6 Aluminum alloy, making them more durable and corrosion resistant. Anodized Surface Each of products are anodised during production to protect against the elements, advanced surface with oxidation treatment durable color and won't fade easily