need info 98 chev dually

anyone have a 98 with a 6.5l diesel and power windows and doors? i'm looking for the factory wire harness number that goes along the firewall behind the dash. anyone know a site where i could look it up?

If anyone can help it would be these guys http://www.dieselplace.com/forum/forumdisplay.php?f=21 When I had my 6.5 they were able to answer any questions I had.