Using this skid plate is easy. Just mount it directly to the existing sub - frame using the included mounting hardware. When you're going off - road, you can rest assured that your rear differential is well - protected. For maintenance, check the mounting hardware regularly to make sure it's tight. When it's time to change the differential fluid, you can easily access the service ports. Keep the skid plate clean, and if it gets scratched or damaged, inspect it for any signs of structural weakness. If there are minor issues, you can use appropriate products to touch up the finish.