these are good ideas... if its that hard I might even consider using a 1/2 breaker bar with a 3/8 adapter to fit the socket... also, I like using an extension and a swivel spark plug socket/swivel adapter with an extension to give lots of clearance... also, I learned to just give it one hard quick push instead of slowly trying to break them loose, I've never hard a problem doing it this way, as in no plugs have broken on me.