Cut the link with a dremel(sp).
Press the new link on with a chain tool... but not too toght!
I have a dremel & chain tool if you need help.
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http://www.woundedwarriorproject.org
One of the consequences of such notions as "entitlements" is that people who have contributed nothing to society feel that society owes them something, apparently just for being nice enough to grace us with their presence.”
Thomas Sowell (American Writer and Economist, b.1930)