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Old 07-16-2013, 09:49 AM
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496CHEVY3100 496CHEVY3100 is offline
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I purchaced a severe duty fan clutch from auto zone around 90.00 as compared to gm I think around 250.00 with spring and viscous coupling I is for temp other is for rpm I use mine to pull a 33 camper and a car trailor so average around 6000-6500 lbs ,I cured my overheating problem ,only drawback I have if it is a problem for you it Does make more noise when it enguages a positive lock up and freewheels when not needed ,also it will spin when Cold until oil warms up then it works as designed ,,Works Great for me ,hope this helps

also you will need about an extra 1 in space between radiator and fan as it is thicker.
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