Finding stock brackets and v-belt pulleys in serviceable condition has gotten very difficult over the years. That's why we're working to bring you brand new reproductions in a paintable satin black finish. No more trying to make chrome aftermarket pulleys look at home under the hood of your restoration project! S/B Compatible with Chevy Two Groove Crank Pulley. Stock"Shallow" variety. For short water pump. Satin black finish. Replaces GM # 374403. Can be used in conjunction with single groove pulley # 910-38812 for 3-groove pulley combo.