Sorry, I've been sleepin on this one. I'd sell for $25 plus shipping, and I'll find the cheapest shipper. I think they'll work on an 80, but not totally sure, did your truck come with a tach from the factory? I've been told they're already wired for them from the factory, but have been told you hafta modify them a little so I don't know who to believe. I think I have one that has about a one inch verical crack in the center of the bottom, and I'd sell it cheaper, Nate
