Using this S&B Body Mount Kit is straightforward. First, refer to the GM Installation Instructions for proper installation. When choosing the right kit, if you have a Standard Cab, go for the one with SKU 81 - 2000. For Crew Cab or Extended Cab, pick the one with SKU 81 - 2001. Make sure to align the cap bushings' boss feature with the slot on the mounting tabs for an OEM - like fit. As for maintenance, keep the body mounts away from gasoline, diesel, oil, and other chemicals as they can damage the product. Although these silicone body mounts are designed to last the life of your truck, check them regularly for any signs of normal wear and tear. If you notice any issues, and it's not due to improper use or chemical exposure, contact S&B as they offer a great warranty. They'll replace the mounts and even cover part of the labor cost to get the new ones installed.