Ford Racing crank pulley spacers are precision-machined shims intended to correct belt alignment with Ford Racing crank dampers on earlier 5.0L and 5.8L engines. This thinner spacer is .350 inches thick and is drilled for 3- and 4-bolt dampers, letting installers fine-tune pulley position to ensure proper belt tracking and reduce pulley-related accessory drive issues.
Ford Racing Crankshaft Pulley Spacers