This CD rom includes complete reproductions of the Buick Shop Manual 1938 and the Buick Shop Manual 1939. The manuals are complete reproductions of the paper manuals that Buick mechanics used to repair and service cars. The CD includes detailed service procedures for the frame, front suspension, shock absorbers, chassis springs, stabilizers, rear axle, brakes, engine, oiling, cooling, manifolds, heat control, carburetion, choke, air cleaner, fuel pump, clutch, transmission, universal joints, fuel tank, exhaust system, steering, wheels, tires, chassis sheet metal, electrical system, radiator, and accessories. Includes sections concerning engine oil recommendations, riding qualities, dimension limits, and dimensional drawings. With step-by-step instructions, schematics, specifications, and wiring diagrams on this CD, The shop manuals have 454 pages together. Covers all 1938 and 1939 Buick cars. This CD can be used on any PC or MAC with the free Adobe.pdf reader.