IAC Valve same part for 89-92?

I've read that the IACV looks the same from 89-93, BUT is only the same part for 89-91, 92-93 are different.

Can anybody confirm this and provide an aftermarket source for a proper IAC for the SC. I know the AutoZone ones claim to work but do not.

Thanks

i bought one from advanced auto parts and they have the correct one i believe. the one from auto zone is some funky looking one that won't fit

I have researched and found this one online, but we don't have an Advanced Auto here in DFW.

http://www.partsamerica.com/ProductDetail.aspx?mfrcode=BOR&mfrpartnumber=21763&parttype=1221&ptset=A

I recall another thread I read about a Motocraft replacement part number was something like BX-16 or similar to that.

Do you have a vendor and part number that you got from the one you got by chance?