Hi there, I have the helms Cadillac factory service manuals on a 2 dvd set. These are the factory manuals in electronic form and you can print pages as needed and search by keyword. This has every identical page in the factory book set. It has tremendous troubleshooting procedures and extra info like tech bulletins and recall info. This is what the GM mechanics use too. Great tool and $25 includes shipping to your door. Don't pay $140 or more for the same info and you won't have to worry about ripping pages because you just print as needed. It installs on your pc and works with Windows 2000, XP, Vista and Windows 7. Here are some screenshots of the Corvette manuals. Cadillac screenshots can be sent too. Let me know, PM if interested or email me at jonlisa973@gmail.com