1.5" 6x5.5 to 6x5.5 (6x139.7mm) Wheel Spacers Adapters 4pcs for Chevrolet Tahoe Express Suburban Silverado GMC Thickness 38mm or 1.5 inches Centerbore 78 mm Vehicle Bolt Pattern 6x5.5" or (6x139.7 mm) Wheel Bolt Pattern 6x5.5" or (6x139.7 mm) Thread Type of Pressed-in Studs & Supplied Lug Nuts 14x1.5