1979 GMC Medium and Heavy Duty Diesel Truck Owner's and Driver's Manual. Original.
This manual was prepared to acquaint you with the operation and maintenance of your 1979 GMC Truck and to provide important safety information.
Contents:
Important Information on Vehicle Loading
Operating Information
Driving Controls
Controls and Switches
Heating and Ventilation
Accessiblity
Engine Operation
Exhaust Gas Caution
Transmission Operation
Two-Speed Axle Operation
Inter-Axle Differential Lock
Use of Brakes
Service and Maintenance
Guarding Maintenance
New Truck Break-In
Clutch Controls
Cooling System
Fuel System
Electrical System
Brake System
Steering System
Wheels and Tires
Towing Procedure
Vehicle Storage
Appearance Care
Underbody Maintenance
Lubrication
General Data
Vehicle Identification Number
The Load and Inflation Table
Owner Assistance
Index
Condition: These are often shoved in a glovebox and end up showing a decent amount of wear over the years. It does shows some wear/use.
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