"1968 GMC Truck Service Manual Series 1500 thru 3500" This is the original, mint condition manual that a GMC dealer mechanic would use to service your pickup. It contains construction, maintenance, and repair of GMC trucks. You will find step-by-step instructions for lubrication, body, frame, suspension, rear axle, brakes, engine (gasoline & diesel), mountings, cooling system, transmission, fuel system, exhaust system, steering, wheels, tires, bumpers, sheet metal, radiator, surge tank, accessories, instruments and the electrical system. Lots of clear black and white pictures, illustrations, wiring diagrams and specifications clarify the instructions. This book covers all 1968 GMC Series 1500, 2500, and 3500 half ton, three-quarter ton, and one tons. This includes pickup, stake, panel, suburban, van, and handibus models, in both two-wheel-drive and four-wheel-drive models. The manual has 510 pages, measures 8" x 10.5", and is in NOS (New condition Old Stock) condition. Buy now to own the best manual for your truck.