gears

1 bad gt · Feb 22, 2009

what is better 4.10s or 3.73s, for a 5 speed street stang.

Mustang5L5 · Feb 22, 2009

I say 3.55's, but that's my opinion

Grn92LX · Feb 22, 2009

Which ever your combo needs is the better one. I like my 4.30's in my 5speed streeter but thats what my combo needs.

1987stangman · Feb 22, 2009

Grn92LX said:
Which ever your combo needs is the better one. I like my 4.30's in my 5speed streeter but thats what my combo needs.

Yep, thats the ticket. I went with 3:55's with a stock motor and it was OK but when I added my new combo it really worked well together. Gears are great but it is better when you build your car around them. Just my O2!

NIKwoaC · Feb 22, 2009

There will be debate on this, but I'm throwing in for 3.73s. 4.10s might be good for the dragstrip, but cruising RPMs on the highway are gonna be ugly, and 1st gear is shooooort.

tstang93 · Feb 22, 2009

1 bad gt said:
what is better 4.10s or 3.73s, for a 5 speed street stang.

I like the 3.73 i had in an 85 but now i have a 4.10 and its also fun but you have to decide if your goin to go on the highway. With my 4,10 its at 2000 rpm at about 45mph in 5th and im shiftin fast im only in a gear for a few seconds just crusin around

flyby84 · Feb 22, 2009

I prefer 3:73 gears because you shift less often it seems...but for a stock or really mild application you can`t hardly beat 3:55s! Just my .02!

blackened88lx · Feb 23, 2009

It really depends on your combo and how you use your car like Grn92 said. Most people could have fun on the street with 3.55s or 3.73s just messin around with street tires. My car has 3.55s and with drag radials and they're wayyy too tall. It would really like some 4.10s.

bubba-dough · Feb 23, 2009

Yep its all about your combo when it comes to racing and how you plan on driving the car. Imo though 3.73 is the better all around choice for fun and performance on a stock or mild bolt on.

tim281 · Feb 23, 2009

I am struggling with the same question. I had 3.73s on my 96 Cobra and they worked out really well, but that was a DOHC motor and probably not as torquey at the low end. The 96 came stock with 3.27 gears and the jump in gearing was roughly 0.5....it made a big difference.
Since the Notch has a 3.08, I am leaning toward the 3.55s (roughly a 0.5 difference also). The Notch is a lot lighter so the 3.55 change should be pretty noticable. I wouldn't go higher than the 3.73, but I can't speak from experience with higher gearing. I am looking for a gear that will be fun for the street. My main goal is to build the notch into a fun to drive car with plenty of usable torque at the low end.

parrish5o · Feb 23, 2009

Yeah, it depends on your combo. I like 3.73s myself. The 4.10s are pretty low for the street but tolerable.

anotherstangfan · Feb 24, 2009

i liked the 355's a little better than my 373's because of the slightly less amount of shifting but for a street stang i say either 355 or 373 for a 5speed

mercurycapri · Feb 24, 2009

So 3.73 are better for street with a mild motor?

Bandit4142 · Feb 24, 2009

I don't want to hi-jack this thread, but my question is virtually the same. I'm trying to decide between 3.55's and the stock 3.27's?? Here's the thing, my Mustang is going to be a daily driver, mild mod, bolt-on car. The problem is, I live in rural Colorado. If I want to go to friggin' Arby's, I have to drive 200 miles round trip.

What RPM can I expect with the 3.55's at 75mph? I'm not as worried about mpg (not that it isn't a concern), as I am the increased RPM resulting in increased heat/wear on longer trips... In the past, I've actually increased MPG, but lowering my gearing (raising it numerically) due to the fact it was running in a better RPM range in terms of effeciency. Obviously its not always the best to run at lower RPM's simply for the sake of running lower RPM.

anotherstangfan · Feb 25, 2009

355's would put you 2500-2800 or so at 75. i remember i was at 2000 at 65 in my fox. the 373 only put a few hundred more at any given speed.

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