"GM Truck Parts Interchange Guide 1973-1987" by Paul A. Herd. This book is the source for GMC and Chevy parts interchanges. Many parts, from engines and alternators to body panels and door handles, are interchangeable among models and makes. This book allows you to look up a part for your truck and find which other GM vehicles used that same part. With this information, you can interchange parts between different model and year cars, improve your odds of finding the part you need at a salvage yard or swap meet, or even purchase new parts for less. With over 200 photos and diagrams, the GM Truck Parts Interchange Manual is the perfect resource for everyone from the serious restorer to the backyard mechanic. You will find interchange for parts for the engine, fuel system, cooling system, exhaust, transmissions, suspension, steering, rear axles, driveshafts, brakes, wheels, wheelcovers, electrical systems, body panels, doors, cab, tail gate, bumpers, grille, exterior trim, glass, mirrors, emblems, and seats. Covers 1973-1987 GMC and Chevrolet Trucks including 1/2 Ton, 3/4 ton, and 1 ton pickups, K5 Blazer, full-size Jimmy, Suburban, Bonanza, Camper Special, Cheyenne, Crewcab, Custom, Deluxe, Scottsdale, Silverado, Street Coupe, Super, Sierra (including Classic, Grande, Royal, and High Sierra), C and K 1500, 2500, 3500, 10, 20, and 30, with both gas and diesel engines. The book measures 8.25" x 10.5", has 304 pages, and is in BRAND NEW condition! Buy now to own this indispensable guide for interchanging the parts on your truck!