GM Service manual on DVD applies to all GM vehicles from 1998 to 2005. Unzip the RAR files to a single ISO then burn to DVD or mount to virtual drive. Run setup.exe from DVD root to install application. Then run \SI_DATA\setup.exe to install the Database. Then run \SI_UPDATE\siupdate.exe to update the database. Some firewall programs will need an exception for the main program before it will allow access to run the application, C:\Program Files\GM SPO\ESI\TRANSBASE\TBKERN32.EXE
split into 6 parts, download all 6 parts into the same folder before unzipping
http://www.ls1truck.com/upload/files...8-05.part1.rar
http://www.ls1truck.com/upload/files...8-05.part2.rar
http://www.ls1truck.com/upload/files...8-05.part3.rar
http://www.ls1truck.com/upload/files...8-05.part4.rar
http://www.ls1truck.com/upload/files...8-05.part5.rar
http://www.ls1truck.com/upload/files...8-05.part6.rar
thanks to Z0SEXXX at corvetteforum.com for sharing this.