Welcome to the site and congratz on becoming a new LUV owner. As for knowing anything cool about them, I think one of the best things about a LUV is how much you can do with them. Depending on your taste you can lift, lower, shave, engine swap, paint, tweak, and mold a LUV into just about whatever you want out of it. Take a look at the gallery section of the main
http://www.luvtruck.com site here to get some ideas and then feel free to ask questions. Once you get an idea of more specific things you want your truck to do, I can guarantee that someone here has either already done it, or at least will have some thoughts that will help you out.
76 trucks also had 4 tie down loops on the bed sides, 3 on the tailgate. 77s went to 3/2 loops. Also the last year for red rear turn signal lenses.