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gear ratios 3.31 vs. 3.55

4585 Views 15 Replies 7 Participants Last post by  jcd
am i correct when i say the 07 gt/cs or gt came in 2 gear packages, the first is 3.31 and the other is 3.55?

How can i find out which gear my 07 gt/cs has? Do i need to contact ford where it was built or does it say this on the car somewhere?
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I don't know, buy my '07 GT had 3.73 gears that were an option for whoever bought it new. It was a big difference over GTs with stock gears.
The sticker on my '07 GT showed a 3.55 ratio limited slip axle option for $100.00. I've since then had the 3.73 gear set installed.
Check the metal label on the driver's door. It has a code for rear axle. CD is 3.55 and CG is 3.31.
G
There should also be a sticker on the rear diff. Sometimes all you have to do is look at it.
Thank you everyone. I will look at the door tag first and check the cd vs cg. I didn't realize 3.73 was an option from the factory. They must beef it up alot!

Thanks.
I believe automatics came with 3.31's and manuals came with 3.55's stock.
I believe automatics came with 3.31's and manuals came with 3.55's stock.
Thanks. i will look!
Enter your VIN number to get you car's original window sticker. The Window sticker will show the axle ratio. Use this link
GT/CS Window Sticker Form
Enter your VIN number to get you car's original window sticker. The Window sticker will show the axle ratio. Use this link
GT/CS Window Sticker Form
Cool. i will try this but i did look at the door jam sticker and i do have 3.55 gears according to the"cd" classification but if this shows everything else my car may or may not have as an option or factory i would liike to see that also.

Thanks
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no such option. Either someone lied to you or you don't know what gear your car has. Its either a 3.31 or an optional 3.55 if you have a manual trans. Otherwise its a 3.31..

I don't know, buy my '07 GT had 3.73 gears that were an option for whoever bought it new. It was a big difference over GTs with stock gears.
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nope. all 07's (auto or manual) came with 3.31 and the manual had a 3.55 as an option.. In 05 and 06 3.55's were standard with manual trans.

Thanks. i will look!
that is the easiest and fastest way to tell. :bigthumbsup


There should also be a sticker on the rear diff. Sometimes all you have to do is look at it.
that is the easiest and fastest way to tell. :bigthumbsup
As someone said above i looked at the door jam and the code of "cd" was on there in plain print. They said that cd is 3.55 and cg is 3.31. I assume this is correct?

I also just punched in my vin on the gt/cs website above and it was a paid for option for 100.00 on the original window sticker.

thanks
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you are correct...


As someone said above i looked at the door jam and the code of "cd" was on there in plain print. They said that cd is 3.55 and cg is 3.31. I assume this is correct?

I also just punched in my vin on the gt/cs website above and it was a paid for option for 100.00 on the original window sticker.

thanks
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you are correct...
topbliss do you know where to get such info as : what # in production my car was in 07' out of how many were made. i started a thread but no response yet. i found the final production date again on my door tag of 04/24/07 but i am trying to get a dash plaque made for the car and need that info.

???
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