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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
when you change that water pump i would change the thermostat also, because if its sticking and you change the water pump it will just blow the seals on the new one if thats what caused the first one to start leaking. i dont trust autozones remanufactured crap either. you get lifetime warranty but who the hell wants to change that part once or more a year. just buy a brand new one and be done with it for a while.