My motor is out of an '88 and the alternator is bad... Can i use an alternator from an '86 and just swap the pulleys??

 

Did you take the alt off the car when the engine was changed, or did you use the 88?
You may try looking at both at a parts store.

 

no... the alt is on the motor... an alt for an '86 is cheaper... thats why i'm asking.

 

Damn, I don't even know the year of my alt lol. Mine went bad and a friend of mine said he had a GM truck alt if i wanted it, i was like, what the heck, and i hooked up fine, runs fine too, must be more techical on TPI motors or something...

 

its the connection for the wiring harness that i'm worried about

 

Take the one on the car to a parts store, and compare it to an 86 alt.

 

no an 86 WILL NOT fit they use a smaller alt in 88 86 had that big one and the plugs are different for those years the amps are diff too i think

 

Size of the alt doesn't matter, it's the guts. The <87 cars had an older style, rebuildable alt, whereas the 87-whenever cars have one where you have to replace the whole thing if one little piece inside goes bad, so they get to hose you for more. The newer one is controlled either by the ECM or some other means (depending on the car you have, obviously), which also means it costs more.

 

hello, i got a question would i be able to put in an alternator off a 4th gen firebird in my GTA since the connecters are the same on the alternator only thing diffrent is the size and amperage the original is supposed to be a 105 amp the one of the 4th gen firebird is a 140 amp