RockTrix for Precision European - 4pc 1.5" Thick 8x6.5 to 8x170 Wheel Adapter Spacers (CHANGES BOLT PATTERN) with 14x1.5 Studs for many Chevy Express Silverado Suburban GMC Sierra Yukon Hummer H1 H2 [CHANGES BOLT PATTERN] These Adapter Spacers will only work for you if your vehicle is 8x6.5" (8x165.1) bolt pattern AND your wheels are 8x170 bolt pattern. See description for other important information. [APPLICATIONS] 1994-200 Chevy K2500 & K3500. 2001-2006 Chevy Silverado 1500. 2000-2010 Chevy Suburban 2500. 1999-2004 GMC Sierra 2500. 2000-2010 Yukon XL 2500. And Many More! See Description for Full List. [SPECIFICATIONS] Pack of 4. 1.5" (38mm) Thickness | 117mm Hub Bore | 14x1.5 Threaded Studs/Nuts [BOLT PATTERN INFORMATION] 8x6.5" (8x165.1) Vehicle Bolt Pattern | 8x170 Wheel Bolt Pattern [MANUFACTURING] CNC Machined to exact specifications from Aerospace Billet Aluminum. Undergoes anodizing process to prevent corrision. Includes pre-installed heat treated 10.9 grade studs.