1986 GMC Light Duty S-Truck Models Service Shop Manual. (S-15 Sonoma/S-15 Jimmy) Original.

This service manual contains diagnosis, on-vehicle maintenance and light repair for Light Duty Truck Models S-Truck. Procedures involving disassembly and assembly of major components for these vehicles are published in a separate Truck Unit Repair Manual (NOT Included). Wiring diagrams are in the back of the manual. 

Contents:
General Information
Heating and Air Conditioning
Frame and Cab
Steering, Suspension, Wheels and Tires
Propeller Shaft and Rear Axle
Brakes
Engine
Transmission and Clutch
Electrical
Radio and Cruise Control
Body
Index/Wiring Diagrams

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.