Looking for a vaccum wiring diagram ( the whole thing) for a 1983 ford f250 straight six > I purchased alldata, chilton, and looked thorugh the haynes manual. No luck also went to the ford dealer and there books dont go back that far. any help i owuld be grateful

http://www.ebay.com/ Search 390050902832
They used to have a sticker in the engine compartment. This manual stated vacuum on the front always ask first.