Seller notes

New Boundary Racing billet crankshaft timing sprocket upgrade for 2007-2014 Ford Mustang Shelby GT500 with 5.4 and 5.8 Dohc engines Billet Crank Sprockets from Boundary follow the same heritage as our oil pump gears, manufactured 100% in house with US sourced materials. These sprockets start with a chromoly steel that is 10 times stronger then the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear.All sprockets heat treated to maximum hardness whil...

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