Fan Clutch Blades?

[highwind]

How often should you replace your fan?

[timsrv]

If there is no physical damage, the blades should almost last forever. The clutch part seems to fail @ around 100k miles, but I've seen them last much longer of fail much sooner. For more information on clutch fans, CLICK HERE (http://www.toyotavantech.com/forum/showthread.php?1725-Fan-fluid-coupling-(fan-clutch)).