This vintage GMC trucks medium duty 1985 maintenance schedule log booklet X-8525A is a must-have for any truck enthusiast. It provides a comprehensive overview of the maintenance schedule for your GMC truck, ensuring that you always know when it's time for an upgrade or replacement. With detailed information about the truck's maintenance history, this booklet is an invaluable resource for anyone looking to keep their GMC truck running smoothly and efficiently. Whether you're a professional mechanic or a DIY enthusiast, this medium duty trucks maintenance schedule is an excellent tool for staying on top of your truck's needs.