fuse my 52 half ton only has 3 fuse 2 in little box on fire wall one for radio not sure if i have one on head light switch
On the drivers side of the firewall near the voltage regulator. About 1" X 2" rectangular box with two fuses inside. Often has "fuse(s)" written on the cover.
headlights have a fuseable link built into the switch. I believe it breaks when getting too hot and resets itself.