"1987 P Truck" Written for General Motors dealership mechanics, this factory-published original wiring diagram shows you how to follow the wiring from bumper-to-bumper. It will help you understand connector configurations, and locate and identify circuits, relays, and grounds. You will not find these wiring diagrams in the factory shop manual. Wiring diagrams are black and white, but they frequently have color codes printed on each line of the diagram that represents a wire. It is a loose-leaf set of sheets. This manual covers 1987 Chevy & GMC forward control truck chassis, including half ton, three-quarter ton, one ton, P 10, P 20, P 30, P 1500, P 2500, P3500, forward control chassis, and stepvan. Covers both gasoline and diesel engines. Includes class A forward control motorhomes chassis. This book covers the part of the motorhome manufactured by GM and will not cover motorhome bodies. This book has 26 pages, measures 17" x 11" and is 0.19" thick. Buy now for the best electrical information available.
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