1981 GMC Medium/Heavy Duty Truck Models Service Shop Repair Manual Supplement. Original.

This service manual supplement contains diagnosis, on-vehicle maintenance and light repair for Medium and Heavy Duty Truck Models. When used with the Service Manuals listed below, coverage is provided for vehicle models as listed on the "Model Data" charts on page iv and v.

X-8033 (NOT Included) Medium Duty Service Manual
X-8034 (NOT Included) Heavy Duty Service Manual

Procedures involving disassembly and assembly of major components for these vehicles are published in a separate Truck Unit Repair Manual (NOT Included). Wiring diagrams for these models also are published in a separate Truck Wiring Diagram booklet (NOT Included).

Contents:
General Information
Heating and Air Conditioning
Frame and Cab
Steering, Suspension, Wheels and Tires
Rear Axle and Propeller Shaft
Brakes
Engine
Transmission and Clutch
Cab and Chassis Electrical
Special Tools
Index

Note: Service manuals can be valuable tools when working on and/or restoring a vehicle. For the uninitiated, keep in mind that these manuals were never meant as restoration manuals, as that is not within the regular scope of work done by dealership service departments (even today).

Condition: Service Manuals are used in Dealership Shops, Independent Garages and in Fleet Environments and thus can reflect such use, most often showing extensive signs of soiling, age, and wear. The information within is still legible and can give valuable insight. The images shown are representative of what is shipped.