Part Type: HVAC Blower Motor Resistor. 1996 GMC Savana 3500 Position: Front;. 1997 GMC Savana 3500 Engine: 5.7L V8; EngineCode: L31; EngineVIN: R; Position: Front;. 1997 GMC Savana 3500 Engine: 6.5L V8; EngineCode: L65; EngineVIN: F; Position: Front;.