It's been a couple of years since I got mine from GM, and it was just copied from their files, but it was something I wouldn't want to be without. Had all of the specs from a lot of different models in the year I had, and I put it in a binder and refer to it a lot for different things. Goes well with all of the other (original) papers I've managed to cabbage from the previous owner over the years. And at the time, the price was right(FREE)! I like FREE!
Tramp
