The Spal Extreme performance 16" fan that Kanuck speaks of is the way to go. Comes with the disclaimer for extended use and not sealed but I have put 2100 miles on mine in the past 3 months. Remember unless you are in stop and go traffic for a few hours straight, which is unheard of the fan isn't running the entire time anyhow, also can't say I drive my car in the rain or dust. This fan is the only one to cool my car here in AZ. Ebay has a great deal on it. Pretty quiet too.
]Spal Fan and Shroud - Club Cobra Photo Gallery[/url]