Dive into the specifics of your 1985 GMC Medium Duty Truck with the genuine Service Manual Supplement X-8533. Published by General Motors, this manual offers detailed procedures and information straight from the manufacturer, ensuring you have accurate guidance for maintenance and repair work. Crafted in the United States, this supplement is a valuable addition to your collection, providing the necessary technical insights for your vehicle's care. Whether you're a professional mechanic or a truck enthusiast, this paper-based literature is an indispensable resource for keeping your GMC running at its best. I ship items out EVERY DAY so EXPECT a QUICK delivery! Please feel free to ask any questions you may have I answer most questions instantly!