superman5.0

i have an auto with the stock 273s and its a daily driver with mainly city miles. i was wanting to know if it would be better to go with 373s or 355s?

945LSTANG

4.10s on an auto.

jnscarbo

I agree with the 4.10s. I ran them for a long time with my aod before i went to a c-4.

superman5.0

right thats what guys were saying but how much would that hurt my gas milage

945LSTANG

if its only really city driving than not much at all.

LTnone

And it starts again

jnscarbo

If you run mainly in the city, it won't be too bad, but if you are concerned about gas milage and the road go with 3.73. The 4.10 will pull a lot better on the start though.

projectresto83

This also kinda depends on what transmission you have. With a c4/c5 your rpms will be up there a little ways but like it was said before in the city won't be too bad but the highway or interstate will kill you. I know my 83 has 2.73's in the *** with my c5 thats why i ask.

85GTsleeper

3.90 or 4.10, they wont hurt mpg that much.

Idrum88

i have 3.73s on my auto and i love them....i had 2.73s just like u did and it made a big difference changing them out