Hex Autoparts 1.5" 8x6.5 to 8x6.5 Wheel Spacers Adapters 4pcs for Chevy Silverado 2500HD 3500HD GMC Sierra Yukon Hummer H2 8x165 14x1.5 Studs Thickness 38mm or 1.5 inches Centerbore 126.15 mm Vehicle Bolt Pattern 8x6.5" or (8x165.1 mm) Wheel Bolt Pattern 8x6.5" or (8x165.1 mm) Stud Size 14x1.5