i have a 91' f 150 with 5.0 ho motor. i think my fuse box doesnt work, my over drive/turn signal fuse go out every time i open the ignition. it even fried the wire that goes to the over drive switch. i know there has to be a way to replace the fuse box but dont know where to start. ive been wanting to go to the junk yard and take one out from a another truck but like i said i dont know where to start, i dont know much about electrical problem and dont want to make it worst so i need some help