Yes, we have diagrams for nearly every type of trailer wiring connector available. Check out the link I attached to see them all. Most likely you have a 7-way on your 2008 Chevy Silverado so I attached a picture of a diagram of a 7-way. click to enlarge. expert reply by: Jameson C. Related searches for silverado 7 pin trailer plug wiring diagram chevy trailer plug wiring diagramgm 7 pin wiring diagramchevrolet truck trailer wiring diagramchevrolet 7 pin wiring diagramchevy 7 pin connectorchevrolet trailer plug wiring diagramchevrolet trailer wiring diagramchevy trailer plug diagram