Get the very best hex socket, if you know a pro borrow his will probably be a snap on. Soak bolts all night with penetrating oil from a spray can ,on real tight bolts I like to rap the extension with a brass hammer while friend squirts more pen. oil.I like to use a high quality 1/2 inch rachet put pressure on it with one hand and rap handle with same brass hammer ,lots less chance of stripping out the hex or breaking bolt than putting a breaker bar on it and putting super pressure on it.learning how to not break bolts is about half the battle....
William Rogers...