This CD rom includes complete reproductions of the original printed paper manuals that the dealership mechanics used to repair and service cars. It includes the 1970 and 1972 Factory Assembly Instruction Manuals for Chevrolet big cars. This CD gives you assembly illustrations down to the last nut, bolt and screw. It shows exploded views of nearly every mechanical part of the car, and includes part group numbers. Use this CD to help you disassemble or reassemble parts of your car, and or to help identify parts that may be missing or incorrect. The mounting, frame, front and rear suspension, brakes, engine, transmission, fuel and exhaust, steering, book contains production and regular production option information. That means that you get information on the base model all the way up to fully loaded. The CD includes illustrations for body wheels and tires, sheet metal, electrical, radiator and grille, bumpers, and much more. You will also find accessories and options such as the radio and speakers, roof luggage carrier, and much more. There are exploded views and illustrations on just about every 1 of the CDs images, with wiring diagrams, torque specifications, and handwritten revision records. This CD covers 1970 and 1972 Chevrolet Full-size cars, Bel Air, Biscayne, Caprice, Impala, SS, wagons. The 1970 assembly manual has 442 pages and the 1972 has 417 pages. Like all assembly manuals, this CD is reproduced from a book made for use inside the factory, and never intended for the public. Therefore, the images (like the print in original assembly manuals) is occasionally light.