Some items from this specific schematic: Washer,flt Sae 3/8, Bolt 5/16-24x3/4", Belt,crank/pwr. St, Belt, Crank/alt..
With all the components that make up the V6 4.3 YEMS 1990 ENGINE BELTS - PULLEYS assembly. The Bolt 5/16-24x3/4" is the most frequently specified with four applications.
fourteen components are shown in this V6 4.3 Yems 1990 Engine Belts - Pulleys exploded diagram.