tail lights not working

my tail lights are not working on my ranger. everything else works. brake lights turn signals dash lights headlights everything but the tailights. i checked every fuse in the damn truck none are bad. bulbs are fine. i looked for a bad ground but am not having much luck.

Disconnect the socket to your tail light, turn your light switch on, and with a tester check for power between hot and ground. If it's hot, then your problem is the fixture. If no power, check your light switch. It may help if you have access to a repair manual to check schematics.