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Title: cool.... but
Review: Bought this in 2003, broke in 2004 company replaced it, broke in 2006. company replaced it with different gear ratio unit. broke in 2010 company sending me another with a larger motor. Door is balanced. All I can say is when it works , it works great and the company has a great warranty. If they hadn't replaced it I would be the owner of a chamberlain belt drive by now.
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