quitbichyn

im 95% sure i wanna order a set of 4.10's but ive been wondering lately if i would run out of gear with 4.10's...eventually i WILL be goin f/i and many many mods are to come so my car is only gonna get faster. i drive an 03 gt auto. do you guys honestly think i would run out of gear with the 4.10's ?? i do some highway driving but its usually under 50 or 60 miles a trip. people have told me that 4.10s woulndt be enough.. what do you think?? will i be fine with the 4.10's??

matt

dlazrael

I belive the general concensus is : 5-spd: 4.10s, Auto- 3.73's

quitbichyn

really? i heard it was the other way around...autos usually go with 410s and 5spds go with 373's

ben790450

Dude you got it all wrong. With an auto you usually go deeper. manual- 3.90's/ 4.10's auto- 4.10's/4.30's

mvr

why not 3.90's?

quitbichyn

how much of a difference would i be looking at between 410s and 430s? gas mileage, acceleration, etc etc

quitbichyn

wasnt there a thread that listed rpms and speeds for like 5 different sets of gears? i could have swore i saw it b4 but i cant find it... but all you guys with autos...what gears did you replace with??

ben790450

I have a friend that just put 3.90s in his auto and he loves them. He says they are perfect for that car.

IROLLSALEEN

If you use any kind of a blower that makes good boost you will run out! An auto with a s/c no more that 3.73's 3.55's with an auto.