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Non-PP AT Axle Ratio ...

stangs-R-me

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In a recent thread about EB max speed, there was some discussion about non-PP Automatic cars coming with 3.15 or 3.31.

It was always my understanding that ALL EB's with A/T had 3.15 and ALL M/T had 3.31 (except PP where all are 3.55).

On Ford's B & P ...
Base model 100A 3.15 is std but you can select 3.31 at no cost adder.

Prem model 200A/201A/FB/CV 3.31 is std and 3.15 in not even shown.


In the 07/01/2014 Order Guide ...
On page 5 Base 100A the 3.15 axle is shown to be included in the "443" A/T option and there is no mention of the 3.31 being a no-cost option.

On page 7 Prem 200A/201A the 3.15 axle IN NOT listed as part of "443", nor is there any mention of it or the 3.31 as being std. or optional.


I've been tracking my local dealers "Extended Inventory" since early October and there are currently 260 VIN numbers on my list ...
13 of which are non-PP 100A A/T
and
40 that are non-PP 200A/201A FB/CV A/T.
I just looked at all 53 of these Window stickers ...
ALL 13 of the Base 100A have a line that shows the 3.15 as a no charge option.
ALL 40 of the Premiums make no mention of ANY axle ratio.


Based on this, I guess it is possible that the 3.31 is std. on ALL EB Premiums and 3.15 is obviously std. on base models ... but can you really get a 3.31 on a base as the Ford B&P is suggesting ??


Has anyone with an EB Prem A/T non-PP actually crawled under their car and found a differential tag stating what ratio is there ?? If not, can please do it and post what they find in this thread !!

I'm real curious !!

Doug
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neodark

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I'll try crawling under my car tonight or at least this weekend... It's been bothering the hell out of me. I didn't know there was a sticker in there.
 

Impulsed7

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I've got the ford tech spec sheet in pdf file, but no idea how to upload it here. So, here goes. 3.15 is standard on the auto, 3.31 is an option (not sure about no cost, it doesnt say), with 3.55 available on the performance pack.

manuals: 3.31 standard, 3.55 performance pack.

And thats it from ford.
 
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stangs-R-me

stangs-R-me

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Impused7 ... I guessing you are referencing the Spec Sheet that is basically part of the Wiki here ...
http://www.mustang6g.com/mustangwiki/doku.php


More official Ford Documentation leaning the other way:

Page 4 of the Dealer Source Book ...
http://www.mustang6g.com/forums/showthread.php?t=8526
... states:
3:15 ratio: AT only on EB & GT
3:31 ratio: MT only

The "3.31 manual only" and "3.15 auto only" makes sense though as Ford has said numerous times that all M/T have a Cast Iron Diff Housing and all A/T have an Aluminum Diff Housing. This is something pretty obvious to check out guys; don't even need to jack the car up to verify if this holds true for all M/T & A/T !!

Doug
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