VIN: 2018 Western Star 4700SF Vin: 5KKHAVDV8KLKE9354 Engine: DD13 SPN-523512 FMI-31. I need help... Truck is running fine, perfectly but I have no gages. No speedometer, tech, air pressure, oil pressure, def fluid level, nothing, but the truck runs fine. I con... Login to read more.