Thunderbutt

Which gear ratio would you install into a 2007 GT (5 speed) that now has a 3.31.

GuitarGuyBMG

3.73 will give you better performance then 3.31 and better gas mileage than 4.10s or 4.30s. It's a happy medium.

rmays06

Stick with a 3.73 as its still friendly on the freeway and nice launches too.

Arwing

4.10's


I have heard you can't feel much difference with the 3.73's. Some say it's a waste...But some say they like them a lot..maybe just because they have them? I don't know...

Biggest bang for the buck, get the 4.10's You might as well get your moneys worth. Gas mileage will go down 1-2 MPG

mygt500

1+ many threads on this subject!

Thurman

I like the 4.10's
If you go with 3.73's, not sureif you feel a great difference. imo

mustangman02232

4.10s there is a 100 rpm diff between that and 3.90s, and a 1 mpg diff between 3.73 and 4.10s, also the 4.6 being a SOHC motor, has to rev to make the power, and, with the dog t3650's .62 5th gear, if your daily comute stays under 85 mph i would not heistate to put 4.30s in

RedFire281

4.10 if I was naturally aspirated. 3.73 if I planned to go F/I.

classj

If I had 3.31's. I would drop in the 3.73's.

Being that I have the 3.55's stock, I would not touch it as I would not want to go more than the 3.73 and it is not worth the effort coming from the 3.55's.

Scotty07

I drove mine with the stock 3.31's , then went to 3.73's. There ISa noticeable difference between the two. I find them to be a nice compromise between city and highway. I turn about 2000 RPM with the 3.73's @ 60 MPH (255/45/18 tires which are almost identical in height to the stock 235/50/18).