No Parking Lights, tail lights, or marker lights

[engineer_gregh]

Folks this past weekend I suddenly had no tail lights, parking lights, or side marker lights. Also my instrument cluster lights and interior light is not working. The headlights, turn signals front and back, and front marker lights work with the turn signal and flashers work. I don't see any blown fuses. Is there something common with the parking lights, marker lights, cluster and interior lights? I've owned this truck for several years and never had a problem with the lights to this point. I've changed the headlight switch, bypassed the headlight relay kit, flasher, and checked all fuses. Any advice would be greatly appreciated. It's a 71 pickup. Thanks