3:73 or 3:90 gears

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07-21-2009, 07:10 PM

#11

BruceH

5th Gear Member

Join Date: Jul 2008

Location: ......

Posts: 2,057

..........

Last edited by BruceH; 01-01-2011 at 08:37 PM.

07-21-2009, 07:12 PM

#12

2007VistaBlueGT

2nd Gear Member

Join Date: Dec 2008

Location: NY

Posts: 390

Quote:

Originally Posted by 08droptop

Question, do all Manuals have 3.55's in them? I have an 08' GT manual, which has a white sticker on the rear axle with 3.31 on it. I saw a thread on here about VIN coding and which gears were in the car, and thought mine had 3.55's, but I can't find the thread. Can anyone help, I don't know what I've got.

No mine came with 3.31 gear ratio.

07-21-2009, 10:42 PM

#13

08droptop

2nd Gear Member

Join Date: Jun 2009

Location: Iowa

Posts: 324

thanks for the info, I'm gonna go check right now.

07-21-2009, 11:13 PM

#14

bynumj

1st Gear Member

Join Date: Jun 2007

Location: Portland, Oregon

Posts: 91

Quote:

Originally Posted by BruceH

... Like the previous poster said 4.10's will help you get into boost faster with a centri.

+1 on getting into boost sooner.

07-22-2009, 09:14 AM

#15

VistaGT

4th Gear Member

Join Date: Feb 2008

Location: NJ

Posts: 1,496

Only 05 and 06 came with 3.55 stock. After that 3.31s stock with a 3.55 option

And now '10 with a 3.73 option FROM FORD! lucky SObs lol

07-22-2009, 11:29 PM

#16

Tekkman

Join Date: Mar 2009

Location: WA

Posts: 6

Now I don't have many mods yet, but 3.73 gears are noticeable. I also have an automatic with cai, gt500tb, magnaflow x pipe, borla axelbacks and predator tuner set for 91 octane.
I can tell there is more get up and go and the car spins the tires more now than it did before. I only went with the 3.73 because i plan on going with a supercharger soon and felt that would be a great ratio for a dd.