1998 chevy truck tail light

Somtimes the bulbs get a dead short in them even though they look OK. Install new bulbs or remove all bulbs on this circuit and reinstall one at a time to see if fuse pops. I had this problem with signal lights on 95 chevy 1500 and turned out the back up bulbs were on the same circuit. Bad back up bulb so once truck was in reverse it blew the fuse and then the signals did not work. Cheap enough to be worth a shot.