This 1978 GMC Truck 1500-3500 Service Manual is a high-quality, licensed, PRINT reproduction of the shop manual written and first published by the experts at the original equipment manufacturer (OEM), General Motors Corporation, for use by their dealership mechanics. This professional shop manual is the definitive source for maintenance and repair information on your classic GMC.

You'll discover over 900 pages of factory-correct procedures and specifications, giving you the knowledge and confidence to efficiently complete diagnosis, adjustments, removal and installation tasks and service.

As great as this resource is, we suggest picking up additional factory-written material. For OVERHAUL procedures, please check out our 1978 GMC Truck Unit Repair Manual. It features disassembly, refurbishment and reassembly of specific, major components on your vehicle.

While we strongly recommend owning both the SERVICE and UNIT REPAIR (overhaul) manuals, you'll also find a wealth of excellent information not available in either, when you add the 1973 - 1978 Chevrolet & GMC Truck Parts Catalog (Text and Illustration).

Getting back to the 1978 GMC Truck Service Manual, we've included a couple sample pages below. They demonstrate just a few of the styles of handy visual aids found in large numbers from cover to cover. The illustrations and black and white photographs provide unmatched clarity when paired with the outstanding descriptions and step-by-step text instructions. This book also contains tables, charts, cut-away views, exploded views and more.

The publisher, Detroit Iron, uses industry-leading, digital technology to prepare these reproductions, and prints them on thick, high-quality paper. ALL of the original content is retained.

MODELS COVERED:

• 1978 GMC C15 Truck
• 1978 GMC C15 Heavy Half Truck
• 1978 GMC C15 High Sierra Truck
• 1978 GMC C15 Sierra Classic Truck
• 1978 GMC C15 Sierra Grande Truck
• 1978 GMC C15 Street Coupe Truck
• 1978 GMC C15 Suburban Truck
• 1978 GMC C15 Suburban High Sierra Truck
• 1978 GMC C15 Suburban Sierra Classic Truck
• 1978 GMC C15 Suburban Sierra Grande Truck
• 1978 GMC C25 Truck
• 1978 GMC C25 High Sierra Truck
• 1978 GMC C25 Sierra Classic Truck
• 1978 GMC C25 Sierra Grande Truck
• 1978 GMC C25 Suburban Truck
• 1978 GMC C25 Suburban High Sierra Truck
• 1978 GMC C25 Suburban Sierra Classic Truck
• 1978 GMC C25 Suburban Sierra Grande Truck
• 1978 GMC C35 Truck
• 1978 GMC C35 High Sierra Truck
• 1978 GMC C35 Sierra Classic Truck
• 1978 GMC C35 Sierra Grande Truck
• 1978 GMC G15 Rally STX Van
• 1978 GMC G15 Rally Van
• 1978 GMC G15 Vandura Van
• 1978 GMC G25 Rally STX Van
• 1978 GMC G25 Rally Van
• 1978 GMC G25 Vandura Van
• 1978 GMC G35 Magna Van
• 1978 GMC G35 Rally Camper Special Van
• 1978 GMC G35 Rally STX Van
• 1978 GMC G35 Rally Van
• 1978 GMC G35 Vandura Special Van
• 1978 GMC G35 Vandura Van
• 1978 GMC Jimmy Truck
• 1978 GMC Jimmy High Sierra Truck
• 1978 GMC Jimmy Sierra Classic Truck
• 1978 GMC Jimmy Sierra Grande Truck
• 1978 GMC Jimmy Street Coupe Truck
• 1978 GMC K15 Truck
• 1978 GMC K15 High Sierra Truck
• 1978 GMC K15 Sierra Classic Truck
• 1978 GMC K15 Sierra Grande Truck
• 1978 GMC K15 Suburban Truck
• 1978 GMC K15 Suburban High Sierra Truck
• 1978 GMC K15 Suburban Sierra Classic Truck
• 1978 GMC K15 Suburban Sierra Grande Truck
• 1978 GMC K25 Truck
• 1978 GMC K25 High Sierra Truck
• 1978 GMC K25 Sierra Classic Truck
• 1978 GMC K25 Sierra Grande Truck
• 1978 GMC K25 Suburban Truck
• 1978 GMC K25 Suburban High Sierra Truck
• 1978 GMC K25 Suburban Sierra Classic Truck
• 1978 GMC K25 Suburban Sierra Grande Truck
• 1978 GMC K35 Truck
• 1978 GMC K35 High Sierra Truck
• 1978 GMC K35 Sierra Classic Truck
• 1978 GMC K35 Sierra Grande Truck
• 1978 GMC P15 Van
• 1978 GMC P15 Value Van
• 1978 GMC P25 Van
• 1978 GMC P25 Value Van
• 1978 GMC P35 Van
• 1978 GMC P35 Value Van

In the mid to late 70s and into the 80s, Hollywood and GMC were a match made in heaven. Television shows like "The Rockford Files", "CHiPs" and "the Fall Guy" created heroes with these handsome square body models. They even made it to the big screen. In "Hooper", Burt Reynolds played the world's greatest stunt man. He may have done the biggest stunt in a '78 Trans Am, but his character's personal truck was a '78 GMC K-15 step side pick-up. At one point in the film, he famously drove the truck 55 miles per hour on the freeway...in reverse! We don't recommend trying that, but this first class 1978 GMC Truck Service Manual series 1500 thru 3500 will help to make sure your truck's condition...and your repair projects aren't moving backwards either.

This factory-written shop manual is perfect for service, repairs, restoration and rebuild projects. Clear illustrations and photos show exploded views, as well as component details, plus specifications, engine repair details, fuel systems and more.

Subject: 1978 GMC Truck 1500-3500 Service Manual - Includes Detailed Procedures and Instructions. | ISBN-10: 01791412017 | ISBN-13: 9781791412012 | OEM Part Number: X-7832