Good original 1975 Chevrolet Truck Dealer Service and Overhaul Manual Supplement. This Manual covers the Light Duty Truck Models, including Pickup and Suburban. It covers the repair of the individual components of the 1975 Trucks and was meant to be used with the 1974 Overhaul Manual. These have Information, Illustrations, Diagrams, Specifications and Procedures. These are what the Dealership used to repair your Truck.  Very informative and useful tool that is hard to find since they were not available to the public.