Original, 1991 Ford Light Duty Truck Service Specifications handbook No. 2 contains information normally not found in the service manuals or owner's manuals.  Models included are Econoline, Club Wagon, Bronco, F150-F350, & F-Super Duty. Information primarily consist of measurements, sizes, dimensions, quantities, etc. with relationship to brakes, suspension, transmission, engine, ignition system, fuel system, lighting system, etc.