Well, will it??? It was only used for a week and I could use a new alternator lol http://scranton.craigslist.org/pts/2978471454.html
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most taurus' had the 3.0 Vulcan motor.. if 3.0 and 4.0 alternators are the same it should. hope this helps on some level.
Mounting points... Best way to find out if so-an-so part fits so-an-so car, hit up RockAuto. With enough playing around and button clicking, you'll find the vehicles it'll fit. SummitRacing also shows this on their site.