Fuses turn sig 15a keeps blowing... replaced it and within 10 minutes it blew again. Started her up tonight and my dash is also out, blinkers dont work, rear driving lights dont work, and my right side break light works sometimes. Before I change the right side break bulb and get after these fuses, any advice?

Thanks Yall!
1986 F150 302 5.0 Auto

 

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1986 F150 303 5.0 4x4 Auto

 

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Before you change any bulb, TEST it. If it's not burned out and its base/terminals are OK, there's no reason to change it. You said it blew within 10 minutes, but you didn't say what was turned on in the truck during that time. Was the truck sitting parked with the key out that whole time? Was it parked with the key in RUN? Were you driving it? Was anything electrical in-use? Exactly what? Remove the fuse that burns, and wire in a 12V incandescent light across the fuse block terminals. The larger (higher-current/amperage/wattage) the better (up to a headlight bulb). With everything turned off but the key in RUN, is the light on bright?