Using this Kryptonite inner tie rod is straightforward. First, make sure your vehicle is a 2001 - 2010 GMC 2500HD/3500 with a 6.6L Duramax engine and you're using a stock center link. Before installation, double - check the thread size of your tie rod body. You need to decide if it takes a 3/4' or 7/8' thread. When installing, follow the standard procedures for tie rod replacement. After installation, you can enjoy the improved strength and durability of this product. As for maintenance, there's no special care required. But keep an eye on it during regular vehicle check - ups. If you notice any signs of wear or damage, don't worry, as it comes with a lifetime warranty. Just remember to buy it from an authorized dealer and register the warranty within 90 days of purchase. And this inner tie rod is only for Kryptonite Tie Rods, so don't try to use it with other brands.