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I need more amps than the stock alternator in my '87 F250 will put out (to handle a slide-in camper). Local parts stores have no alternators that are much higher amperage. Does anyone know of an alternator of 100 amps output (or more) from another model truck that will bolt up to the'87 300 engine?
go to the wreckers and get a single wire ac delco 100 amp alternator , believe it is the S series , if you have serpentine belt watch as some gms have 5 grooves not six as ford but some seem to have 6 and the v belts are compatible , there is a website ,possibly MADD wiring gives all details, there are older ford alts. that put out 100 amps but may not fit as easy as gm as they were on Lincolns and had large cases.