I have this P/U that I am trying to get rear lights all working on.
I don't think that there are fuses bad but I was checking ALL the fuses just to be sure.
There isn't a diagram on the cover shows what is supposed to have what fuses in which holes.
I have tried looking online for a diagram but the several diagrams that I found aren't matching what I found under the dash.
When I poke a fuse into the holes on these slots there doesn't seem to be any contacts there to hold the fuse in: #5, # 6, #18, #21, #26, #27.
On the diagrams that I have found, all of these SAY they power something.
#7 says it is not used but there feels like there is contacts in there.

Is there a different version of fuse diagram somewhere?

 

Welcome to the site..

Is it a Light Duty, or Heavy Duty F250? And engine?
I'll send the box config to your email...

 

I don't find anything that SAYS if this is light or heavy duty.
Emblem on the fender says F-250 Super Duty. Has V-10 motor. Manual Transmission.

I did find another THANG.
I don't know how I decided this was 1997.
I finally found a moldy owners manual in the glove box.and it says 1999 model year.
I looked closer at the VIN sticker and it says 3/1998.

This is a diagram that I found, now, that seems to match what I find under the dash.
https://fusecheck.com/ford/ford-f250...1-fuse-diagram

SO, I guess I don't really need help after all.
If you have a better box config, I would like to see it.
Thanks.