If every time you hook up the battery to a 1976 F150 and the fusible link blows between the wire harness and the altinator what is the problem and how do you fix it?

Answer I had 76 Ford years ago and had the same problem. I bought several batteries and a alternator and kept blowing fuse links. Believe it or not I stripped my battery cables and they were corrodied internally, looked like they may have been aluminum replaced them and my problem was solved. Good luck!Change your alternator because it sounds like its shorted to ground internaly get a used one and replace it to try before you buy a new one. and insted of using fuseable links try a test light to see if it lights up when you connect the alt. if it does look for melted or burnt wires.