RockTrix 2pcs 1 inch 6x5.5 to 6x5.5 Wheel Spacers (108mm bore and 14x1.5 Studs) for Cadillac Escalade Chevy Avalanche Silverado 1500 Tahoe GMC C2500 Yukon Sierra (6x139.7 25mm)

WARNING: For proper installation, it is REQUIRED that the back of your wheels have small cavities in the mounting pad. These cavities are needed so that the lug nuts and wheel studs can sit in this pocket. Item Specifications: Thickness: 1.0" (25mm) Bolt Pattern: 6x139.7 or 6x5.5 Centerbore: 108mm Stud/Nut Thread Pitch: 14x1.5 Compatible With: 1999-2012 Cadillac Escalade Chevrolet / Chevy 1993-2000 - C2500 1994-1998 - K1500 / K2500 1995-2012 - Tahoe 1999-2012 - Silverado 1500 2001-2007 - Silverado 1500 HD 2002-2012 - Express 1500 2007-2012 - Avalanche 2002-2006 - Avalanche 1500 / 2500 2000-2005 - Astro GMC 1994-1999 - C2500 / K1500 1999-2012 - Sierra 1500 2001-2007 - Sierra 1500 HD 2002-2010 - Sierra Denali 1992-2012 - Yukon 1999-2006 - Yukon Denali 2000-2008 - Yukon XL 1500 2001-2006 - Yukon Denali XL 2003-2012 - Savana 1500 2003-2005 - Safari IMPORTANT - Must check before purchasing - SAFETY / INSTALL WARNING: Do NOT install wheel spacer if your wheel studs or lug nuts make contact with the back of your wheels. - Wheel Stud Length: Your vehicle's wheel studs need to be less than 1.0" (25mm). If not, the back of your wheels need pockets long/wide enough for your studs. - Fender Gap: Measure your wheel gap for clearance. You will need at least 1.0" (25mm) of fender clearance to prevent the wheel/tire from hitting the fenderliner. - Due to a text limit imposed by Amazon, we are not able to specify everything here. Please See Amazon's "Important Information" section above for additional details/information. Contact Us Our experienced and knowledgeable staff are here to help with any questions or problems you may have. Simply copy and paste the following link to your browser: https://www.amazon.com/ss/help/contact/?_encoding=UTF8&ref_=v_sp_contact_seller&sellerID=A23ID4AZTDBV78