2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

3.55:1 ?????? Input

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Old Aug 23, 2009 | 07:43 AM
  #11  
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Originally Posted by TWOKOOL
I have 3:31 right now, and a chance to go to 3:55 for a great deal. What will be the difference?
Nearly immeasurable.
Old Aug 23, 2009 | 08:47 AM
  #12  
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This might help.

3:31 6000 in 2th = 73 MPH
3:55 6000 in 2th = 68 MPH
4:10 6000 in 2th = 59 MPH
3:31 6000 in 4th = 147 MPH
3:55 6000 in 4th = 137 MPH
4:10 6000 in 4th = 118 MPH
Old Aug 23, 2009 | 10:04 AM
  #13  
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My '06 came with 3.55s and I'm pretty happy with them.
Old Aug 23, 2009 | 02:58 PM
  #14  
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I must say, I am happy that 3.55s were standard equipment when I bought my car.
Old Aug 23, 2009 | 05:45 PM
  #15  
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Originally Posted by whyask
DONT FEAR THE GEAR !! Go with 4:10's and be done ! LOL
have to agree with WHYASK. just got my 4.10's in. and its a totally new monster
Old Oct 5, 2009 | 10:44 PM
  #16  
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so, by the same token, if the difference between 3.31 and 3.55 is not much, does that mean the difference between 3.55 and 3.73 isnt that much? I ask because the car I was originally getting had 3.73's in it, but now I "might" get one that has 3.55's in it. I'm just wondering what kind of performance (acceleration) reduction i'm going to get by getting the 3.55's instead.
Old Oct 5, 2009 | 10:45 PM
  #17  
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you need to go 373s at least to even feel a diff
Old Oct 6, 2009 | 12:08 AM
  #18  
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Mine came stock with 3.55s and a LS and I love em. I drive my friends GT with 3.31s sometimes and I don't notice ant real difference, but he's mostly stock too.

If I was you, I'd definitely go to 3.73s, or 4.10 as you need, but would highly recomend installing a limited slip while your in there.
Old Oct 6, 2009 | 01:29 AM
  #19  
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Originally Posted by ptaylor_9849
The major cost of a gear swap is labor. Don't be penny wise and pound foolish just because the parts are cheap. Get the gear you want, not the gear that's cheap! I have 4:10's in my daily driver and wish I had 3:73's but they came with the car when I bought it. I'd go 3:73.
well said! agreed
Originally Posted by nineinchnail1024
I must say, I am happy that 3.55s were standard equipment when I bought my car.
same here...I love my 3.55....way better then the 3.08 in my 93 LX and the 2.73 in my 87 LX......to go from 3.31 to 3.55 IMO is not worth the labor costs
Old Oct 6, 2009 | 08:35 AM
  #20  
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Originally Posted by TWOKOOL
I have 3:31 right now, and a chance to go to 3:55 for a great deal. What will be the difference?
Did Your CS not come with 3.55's? I have an 07 GTCS and I am pretty sure that the 3.55's were stock on the GTCS.



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