1977-1978 GMC Motorhome Service Shop Repair Manual Supplement. New Factory Authorized REPRODUCTION. ZEO 6581, ZEO 6584 and TransMode ZEO 6083, ZEO 6583.

A GM authorized reprint of the manual that would have been used by a shop technician in their everyday duties of servicing/maintaining and repairing new and used vehicles of the time period. It gives short cuts and methods for the care and maintenance of the GMC Motorhome in simplistic terms. Note: These manuals were never meant as restoration manuals, as that is not within the regular scope of work done by dealership service departments.

As this is a supplement, to get full coverage one should combine with 1975-1976 GMC Motorhome Maintenance Manual X-7525 (NOT Included). 

Content:
General Information, Periodic Maintenance and Lubrication
Body
Heating and Air Conditioning
Frame
Front Suspension
Final Drive
Rear Suspension
Brakes
Engine
Engine Cooling System
Engine Fuel System
Emission Control Systems
Engine Electrical
Fuel Tank and Exhaust
Steering System
Wheels and Tires
Chassis Electrical
Radiator and Coolant Recovery System
Miscellaneous GMC Living Area Facilities
Metric Information
Alphabetical Index
Wiring Diagrams