Gears

teal94_stang · Apr 6, 2010

I am thinkin about buying a set of gears and dont know wich to buy (3:73's or 4:10's). I drive my car a few times a week and visit the track 3 or 4 times a year thats about it. What is going to be the difference between the two? Is it pricey to have them installed at a shop?

fiveohwblow · Apr 6, 2010

Its all opinion. 4.10's if you are more concerned about track and less about shifting and fuel economy.

3.73's seem to be the most universal gear. Universally making stang owners smile over performance, and not frown at fuel mileage too much.

davis1d0 · Apr 7, 2010

I drive mine more often then not when the weather is nice..... knowing this I put 3.55 gears in my car. It made a huge difference from my 2.73 gears that were in it. 3.73 would be my vote simply because you still have some gas mileage as stated above, but in all honesty I like the 3.55's just because I can still get 26ish on the highway.

BlackVert · Apr 7, 2010

agreed on both counts. for a car you drive often, 4.10s can become a hassle, and i would recommend 3.73s.

for a car you drive little and go to the track with, 4.10s are a better choice.

ProKiller · Apr 7, 2010

3.73s. expect to pay $400 for a shop to install.

johnny_munyak · Apr 7, 2010

davis1d0 said:
I drive mine more often then not when the weather is nice..... knowing this I put 3.55 gears in my car. It made a huge difference from my 2.73 gears that were in it. 3.73 would be my vote simply because you still have some gas mileage as stated above, but in all honesty I like the 3.55's just because I can still get 26ish on the highway.

I'd have to agree completely. I went with 3.55's after much thought and I am not sorry. I thought about 3.73's but I do mostly freeway and highway driving. This gearing has plenty of grunt down low too. Seems to match my camshaft/head combo well too. Revs right around 2000 rpm at 60 mph in 5th....2300-2400 @ 75 mph. 3.73's will turn around 150-200 RPMS more.

If you are running a 5 gear, you can't go too wrong with 3.55 or 3.73. IF you drive more freeway/highway....go 3.55s. By going to 3.55s from 2.73s, my gas mileage around the city went up 2 mpg, and down about 2 mpg on the highway.

Hope it helps.

teal94_stang · Apr 7, 2010

Thanks for all the input. It was very much helpful.

Adam95GT · Apr 7, 2010

4.10's no questions...

final5-0 · Apr 7, 2010

Play with one of those gear/mph programs you can find on line

You'll find the diff between 355's & 373's is about 125 rpm

Grady

Black95GTS · Apr 8, 2010

Use the search function, type in "gears"... you could read for days.

Adam

xracer22 · Apr 14, 2010

I would definetly go with the 3.73's. I beat (ahem) Drove a friends car that had 4.10's and it just seemed like i couldnt shift fast enough. I have 3.73's in my car and love em! Slightly higher rpms but not nothing to be concerned about. As for the gas mileage 1. I didnt buy a mustang for that and 2. keeping my foot out of it to record NORMAL gas mileage is impossible!

earleys94gt · Apr 14, 2010

373's for "all around performance"

355's if you are concerned about MPG; though a Mustang isn't made for MPG

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