Ribbed belt but a v belt pulley on the alternator??

[AustinandTrotsky]

Howdy! Got a weird problem. I need to replace the alternator, but the old one and the belt I have is a 4 ribbed system. However, the only alternators I can find now take v belts. I can't find any compatible alternators that use the 4 ribs

Any ideas??

 

[melsg5]

I assume you have a 1985 but it came with three different engines. So trying to look up what you need is difficult.
If the rest of the alternator is identical swap the pulleys.

 

[92 Sunbird LE]

87-94 all use ribbed alternator belts, the only v belt is for the a/c compressor....

Doug in P.R.