2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

Under drive pullies?

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Old 08-08-2007
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Under drive pullies?

What exactly do underdrive pullies do?
 
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Old 08-08-2007
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They drive your accessories at a slower rate compared to your OEM pulleys. There is a Crankshaft pully as well and its a smaller one. You will gain some in HP and I think for the price its not a bad setup. Just be sure to buy good ones and not the knock off ones.
 
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