Had a call from the previous owner of my C5. He said he found some books I might be interested in before he throws them away. I went to his house and he had these. I asked how much, he said just take em! Man, if you put all three volumes in a stack it is like 4" thick. Pages are in perfect shape. Just a little shelf life on the covers. He also had the huge binders to put them all in from GM.