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Unread 07-01-2007, 12:54 PM   #1
claytonandson
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2003 TJ Wrangler 
 
Join Date: Apr 2006
Location: southern maryland
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flex fan

has anyone replaced thier stock fan and f/c with a flex fan.what spacer is needed and does it need a reversed blade like on my f-150??

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Unread 07-01-2007, 03:36 PM   #2
dyna
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Why? the fan clutch is one of the better inventions if working correctly. Flex fans are noisy, and fuel sucking.
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Unread 07-01-2007, 08:51 PM   #3
44 NSB
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For a couple of years I've had the #475 flex-a-lite II. The kit supplies everything you need. Included is a nylon shroud. No spacers. The reason I installed it was to employ a kill switch on it for mud / water. It works fine in Florida's heat and humidity. I'm not sure about the reversed blade. There is plenty of room between the fan (which is flat against the radiator) and the motors pulleys.
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5 speed w/ NP 231, Nth 4.5" lift, AntiRocks front and rear, skids (tummy tucker, front dif, oil pan, GenRite fuel tank skid, RockJock D-60 4.88, Flex-a-lite fan, Flow Cooler pump, Rhino lined tub, American Eagle Alloys, SS LTB's 34" x 10.5 w/Staun beadlocks, Tuffy console, MileMarker Hydra 12000
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Unread 07-02-2007, 09:04 AM   #4
TJ driver
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I installed a Flex-Lite engine fan. I did have to get the reverse rotation for my 4.0L and ran a 2" spacer. It made a big difference and haven't noticed any drop in gas milage. I don't see why it would hurt gas milage, it wieghs a huge amount less than the stock fan. As for me personally, I like the fan noise while under heavy acceleration.
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Unread 07-02-2007, 09:56 AM   #5
claytonandson
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its kind of an old school motorhead mod to take off weight and get more cooling.some even claim a little + in hp. thanks for the tip on the reversed blade. wasnt sure.
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