Please tell me how to remove the headliner in my 2008 Silverado HD standard cab.

Please tell me how to remove the headliner in my 2008 Silverado HD standard cab. I need to hook up a set of cab lights.

The headliner in your 2008 Silverado would be removed like any other truck headliner, remove everything that attaches through the headliner board, remove or loosen everything that holds it up around the edges (the headliner trim), let it drop down enough to unplug any wiring harness that you see; and it should slide out through the passenger side door. That is; if you want to remove it from the truck completely.

The extended cab headliner kit will work for the 2008 Chevy Silerado truck.