This 1937 Plymouth Shop Manual - Codes P3 - P4 is a high-quality, licensed PRINT reproduction of the service manual authored by Plymouth Division and published by Detroit Iron. This OEM factory manual is 8.5 x 11 inches, paperback bound, shrink-wrapped and contains 200 pages of comprehensive mechanical instructions with detailed diagrams, photos and specifications for the mechanical components of your vehicle such as the engine, transmission, suspension, brakes, fuel, exhaust, steering, electrical and drive line. Service / repair manuals were originally written by the automotive manufacturer to be used by their dealership mechanics. The following 1937 Plymouth models are covered: Deluxe, Roadking. This factory written Detroit Iron shop manual is perfect for the restorer or anyone working on one of these vehicles.