Will the SuperCharger pulley from a 1995 supercharger work on a 1997 Bonneville SSEI (L67) supercharger? The pulley from the 1995 is smaller in diameter.
No, and even if it did, you would be stupid to put it on. It is so much smaller than the stock one, your car would be slower because of all of the Knock Retard it would be getting. If you want a smaller pulley go to some of the Grand Prix vendors, because it is the same engine, they will have the pullies. For a stock engine, you don't want to go smaller than a 3.4" Pulley.