Your also going to need a couple extensions for your ratchet to get at some of the plugs. And, when your beginning to set the new plugs in and get the threads started do not use your ratchet for this. Use only your spark plug socket and an extension and turn the extension with your fingers until you feel that the spark plug is threaded properly and turning smooothly. (another good reason to use a bit of anti sieze). Once your confident that you got the plug threaded properly then attach the ratchet and tightend to spec.