When I got my truck, I acquired a brochure book (see it here). My truck is an 86, but the book was an 84, so I thought what the heck and searched it up on the naked lady giver. Turns out some dude on Ebay has a few of them, and here it is! I think the coolest part of the this book is the spec sheet, which is kind of the end all be all for questions regarding options on different models and trim packages, so take a look at that if you are curious. Interestingly, it tells you which rear end came in which truck, which is something that is good to know. Anyway, I hope you guys enjoy!