Written for GMC dealership mechanics, this factory-published original manual shows you how to work on your vehicle. With step-by-step instructions, clear pictures, exploded view illustrations, schematics, and specifications, you will have the information you need to get your project on the road and keep it there. This book is a supplement to the shop manual of the previous model year. This manual covers 1978 GMC Medium & Heavy Duty Truck models, including 4000, 4500, 5000, 6000, 6500, 7000, 9000, 9500, & BBC. Covers both Gasoline and Diesel, though the diesel engine itself may require a separate engine manual. this book will refer you to 1977 Medium Duty or Heavy Duty Service Manual for some repairs. This book has 340 pages. Buy now to own the best manual for your vehicle.
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