Orion Motor Tech 4pcs 2" Hub-Centric Wheel Spacers 6x5.5 with 14x1.5 Studs for GMC 99-14 Sierra 1500 & 00-13 GMC Yukon, Chevy 99-14 Silverado 1500 & 95-13 Tahoe & 00-13 Suburban 1500 Thickness: 2 inches Vehicle Bolt Pattern: 6 x 5.5 inches / 6 x 139.7 mm Wheel Bolt Pattern: 6 x 5.5 inches / 6 x 139.7 mm Thread Size: 14 x 1.5 STUDS Center Bore: 3.07 inches / 78.1 mm