Silverado Fog Light Wiring Harness - Don't compromise on safety, change in pairs High Brightness Scattering Light Source - they provides a high-brightness diffuse light source. The intensity of this light source is to penetrate the dense fog and serve as a reminder to the opposite driver.. The new Chevy Silverado 2500HD with the available Duramax turbo-diesel V8 with Allison transmission is the best choice if you have heavy duty demands. The Hill start assist senses potential roll back when starting on inclines to make your heavy lifting that much easier. The new Chevy Silverado 2500HD was built to handle heavy loads in any weather condition..