4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Underdrive pullys

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Old 06-06-2004, 01:00 AM
  #1  
kftrk77
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Default Underdrive pullys

Hey guys, I have a 03 GT and just ordered underdrive pullys from BBK. Do I need to get a longer belt to fit the bigger pullys?? Thanks for any help.
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Old 06-06-2004, 01:52 AM
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callmecobra
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Default RE: Underdrive pullys

if anything, a shorter belt, but the tensioner should take care of it. if not, just go to the local parts store and get a belt thats an inch shorter.
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Old 06-06-2004, 02:13 AM
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Dan04COBRA
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Default RE: Underdrive pullys

Take a piece of string and route it around the new pullies like it's a new belt. Mark it and measure, head off to the parts store
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Old 06-06-2004, 05:33 AM
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jdaniel
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Default RE: Underdrive pullys

I used my stock belt and all is fine.
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Old 06-06-2004, 02:18 PM
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kftrk77
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Default RE: Underdrive pullys

Thanks guys, they should be here tommorrow. Also have steeda springs and a tri axe shifter on the way. I'll let ya know how they turn out.
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