Good original 1979 Chevrolet Dealer Service Unit Repair [Overhaul] Manual. This Shop Manual covers Passenger Car and Light Truck [Series 10-30] Models.  It covers the repair of the individual components of your car. It contains information, specifications, illustrations, diagrams and procedures. These are what the Dealerships used to repair your car. Very informative and rare item that will make a useful tool for the Chevy Owner.