1997 GMC Pick-up Truck HVAC Control Panel C3500 - 5.7L Eng. - Manual A/C - Blower - Mode and Temperature Control - w/o Rear Window Defogger guaranteed to replace your current 1997 GMC Pick-up Truck HVAC Control Panel C3500 - 5.7L Eng. - Manual A/C - Blower - Mode and Temperature Control - w/o Rear Window Defogger. 1997 GMC Pick-up Truck HVAC Control Panel comes new OEM 1997 GMC Pick-up Truck HVAC Control Panel aftermarket new 1997 GMC Pick-up Truck HVAC Control Panel of remanufactured 1997 GMC Pick-up Truck HVAC Control Panel C3500 - 5.7L Eng. - Manual A/C - Blower - Mode and Temperature Control - w/o Rear Window Defogger.