Can someone please give me the correct part number for my 85 Firebird alternator with ac? Advance gave me the wrong one. I understand the 85-86 have a larger one than all the rest. Please also tell me what amp o need and what clock position for the connector if possible. Thanks! Couldn't find the pn searching on here and I can't trust parts stores apparently

I noticed a 108 amp 17si on an '86-could also mount a 97amp 17si or an early style,~mid1986-1993, 108 amp CS144 is same size and mounting with a different regulator plug-cs144 has an improved voltage regulator and will put out more amps at idle RPM VS a si type delco alternator

Thanks for the reply. I'm just going to have mine rebuilt. Hopefully they'll see it and know exactly what it was