GM Metric Calipers are manufactured from a new steel casting.• Fits 1" Rotors• 5-1/2" Bolt Spacing• Weighs 6.95 lbs• Uses M10 x 1.5 Fitting• Mounting Bolts IncludedGM Metric Caliper - 2-1/2" Piston$66.99PriceSideSelectQuantity*Add to Cart