Position: Grooved Pulley. 1996 GMC Savana 2500 Engine: 4.3L V6 GAS; W/O A.C.; Position: Grooved Pulley;. 1996 GMC Savana 2500 Engine: 5.7L V8 GAS; W/O A.C.; Position: Grooved Pulley;. 1996 GMC Savana 2500 Engine: 5L V8 GAS; W/O A.C.; Position: Grooved Pulley;.