ECCPP 8x6.5 to 8x180 Wheel Spacers 1.5 inch Compatible with Chevy Silverado 2500HD 3500HD GMC C2500 Suburban K2500 Suburban Sierra 1500HD 3500HD Yukon XL 2500 8x6.5 to 8x180 WHEEL SPACERS FITMENTcompatible with Chevrolet Avalanche 2500 Chevrolet C2500 Suburban Chevrolet C3500HD Chevrolet Silverado 2500 3500 8 Lug WHEEL SPACERS 1.5 PARAMETERThickness:1.5" or 38mm;Vehicle Bolt Pattern:8x6.5 or 8x165.1mm;Wheel Bolt Pattern:8x180mm;Thread Pinch:14x1.5;Inner Diameter:130mm 1.5 INCH WHEEL SPACERS ADVANTAGEHigh quality alloy aluminum 6061 T6, to ensure the highest level of performance and durability for your vehicles. WHEEL SPACER 8 LUG SAFETYEach of our wheel spacers are built to last! Made from the best true T-6 billet aluminum. PLEASE ATTENTION FOR 8X6.5 TO 8X180 SpacersThe studs of our spacers are grade 10.9, heat treated and hardened heavy duty studs for safety.