sfi

You will notice a difference, but you need to be smart on what you plan to do down the line. I planed on putting in 3.73 for my supercharger install and that's more than enough, 4.10 would of been a waste unless you like blowing the tires off the rims for a SC. My opion based on street tires only.
If you stay NA, 4.10's would be the right choice. 3.73 make a differnce, but I was alittle dissapointed up to the sc install. This was my first upgrade . My stang is a automatic. I shaved 2/10 off my 1/4 miles time NA on street tires BFG-KDW

H0SS302

4.10s or youll be sorry..... i thinkmore than halfof the people that get 373 regret it.

beastzilla02

4.10! gas mileage is overrated

christoph0134

if i dont do alot of highway driving willl 4 10 s be that much worse then stock and what rpms witll i be at with 4 10s at 70 mph

strtfab87

go 4:10's or go home

H0SS302

well duh gas milege is gonna be a little worse, your rpms are higher than normal. but tons of people hyave them that drive highway, so dont worry about it

kweb288

would 410s be good for a stick? just wondering

H0SS302

i hate that stupid 373=stick 410=auto....so retarded they just say that cause there lazy and dont want to have to shift as quick. [8D]410s are perfect for stick

kweb288

ok cool, just wondering, im to lazy to do the calculations but do you know around what mph you would be shifting out of first? possibly?

piledriver

I have 373's, I'mout of 1st @ 30-35, 2nd 60-65, 3rd 95, 4th I top out @ about 125.
With my blower 1st and 2nd are gone in less than 5 seconds.
In other words I'm hitting 60 in under 5 seconds, probably around 4.6.