Using this boot kit is easy. First, make sure your truck is turned off and cooled down. Then, carefully remove the old boots from your Dodge Ram HD 6.7L Cummins engine. Place the new Mishimoto boots in the same position as the old ones and use the T - Bolt clamps to secure them tightly. When installing, ensure that the boots are properly aligned to prevent any air leaks. As for maintenance, it's a good idea to regularly check the boots for any signs of wear, like cracks or tears. Also, keep an eye on the T - Bolt clamps to make sure they're still tight. If you notice any issues, replace the boots right away to avoid potential engine problems.