These crankshaft dampers from Ford Racing will control crank twisting at all rpm, reducing valve train vibration and minimizing timing scatter. They're available in iron and steel for a variety of applications to suit your needs.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1969-1971	Ford	Mustang	Base
1969-1970	Ford	Mustang	Boss 429
1970-1971	Ford	Mustang	Grande
1970-1971	Ford	Mustang	Mach 1
1969-1970	Ford	Mustang	Shelby GT-500