What gears would you go with.....

[Pure Stock]

for a semi-daily driver 2007 4.6L 5-speed manual trans S197?? Other mods are an SCT tune, U.D. pulleys, Flowmaster axle-back, Pypes off-road X, and a JLT cold air.

Choices are:

* leave the 3.31's in it
* 3.73's
* 3.90's
* 4.10's
* 4.30's
* 4.56's

[Rio94gt]

I know youll like this answer 4.30s. :pepper: I dont know much about the S197 but 4.10s always seem to be a good choice for a 5-speed mustang.

[Viper_ed]

Were you 2 just doing some Test n Tune runs on Parente? I heard someone about 20 min. ago.

5:13's for the M'Fing Win!!!

[Pure Stock]

Were you 2 just doing some Test n Tune runs on Parente? I heard someone about 20 min. ago.

5:13's for the M'Fing Win!!!

Test N Tune HELL YEAH:laughing:

[Viper_ed]

Figured it was the 2 of you. Give me a shout at home, my cell's downstairs on the charger.

[phillysrt4]

I think 3.73's would still give you some highway usability, but everyone knows the magical 4.10's make you unbeatable... even against SRT4's!!!

[Sonic03snake]

4.30 or bust!!!:pepper:

[cam303]

its gonna be no less that 4.56. :woot1:

[Pure Stock]

I say slap a set of 2.73's in it and hit the Bonneville Salt Flats.:hide:

[faststang91]

The Gear i Run is not on there I usually run about a 6.56 haha

[yeahloh95]

I Voted 4.30's

[venom]

4.30's gets my vote. i had 4.10's in my 98 cobra, and it was great. 4.30's would just that much better.

[redfire vert]

Mike @ Wolfpack installed 4:10s in my 03 GT (AOD) and the car really came alive! I love it when the light turns green! Don't fear the gear!!!!

[2001GTTT]

thats awesome man! can you feel a difference with the 4.10's? I have some FRPP gears up in my room that i really want to put in, but im tryin to wait till june and after vacation.

[Jper]

Which gear is the best for gas milage?

[mineralrob]

Which gear is the best for gas milage?


I would probaly say stock but i would think 3.55 or 3.73's wouldnt be to much of a diffrence than stock.

[Jper]

I would probaly say stock but i would think 3.55 or 3.73's wouldnt be to much of a diffrence than stock.
I hear 3.73s are great gears too. Might buy some off americanmuscle.com

[phillysrt4]

Which gear is the best for gas milage?

It really depends on your torque curve and other factors. The short (and slightly incorrect to keep it simple) idea is that you want a set of gears that require minimal throttle at your desired cruise speed (65, 75, or whatever the legal limit is or what you want). Having a set of gears too tall or too short will impact how much throttle you need to apply (more to get up a hill because you have gearing in one direction, or more to keep the RPMs up so that you can keep your crusing speed in the other direction).

[Jper]

It really depends on your torque curve and other factors. The short (and slightly incorrect to keep it simple) idea is that you want a set of gears that require minimal throttle at your desired cruise speed (65, 75, or whatever the legal limit is or what you want). Having a set of gears too tall or too short will impact how much throttle you need to apply (more to get up a hill because you have gearing in one direction, or more to keep the RPMs up so that you can keep your crusing speed in the other direction).
Hmm, I see...I do a lot of highway travel about 30ish miles to and from school, Do you think 3.73s will be efficient?

[phillysrt4]

from what i've seen (and everyone else feel free to chime in since Im going with what i've read) the stock gears for highway driving will perform the best for fuel economy versus 3.73's or 4.10's.

[Jivepepper]

I running a used set of 3:73's. They still work well on the freeway.