BBK 87-03 Ford F Series Truck Twin 61mm Throttle Body Gasket KitThrottle body gaskets can deteriorate and dry out over time and cause air or coolant leaks causing drive ability issues. They should be replaced every time the throttle body has undergone any replacement, repair or service. All throttle body gaskets should be changed when you suspect or there is evidence of a leak. BBK Performance throttle body gaskets are made from high quality gasket materials to last and for the most part are a relatively simple