Quick gear question(Please dont kill me)

[Texstang9682]

Ok so im ready to do gears. I have a 5 speed tranny. I have 3.27's in it right now. So my question is I have a set of 3.55's laying in the garage but will I feel a difference. If not my dilemma is between 4.10's and 4.30's. Ok, so My tires are P285-40-R17 and I just measured from the ground to the top of the tire and it's 26 inches. So could any one give me an estimate of how many RPM's I will be at 70 MPH. Currently with the tires and 3.27's I'm at 1900 RPM's. Also to note I get about 250 miles to the full tank of gas. How much could I expect it to go down. I'm sure some one on here has either of those gears in their car. I'm looking for some opinions. Thanks guys, Clint

 

[COramprat]

The 3.55 are a waste from 3.27's. Not worth the install with that little difference.

Your other question...are you talking about RPM's at a certain speed? With 4.10's I'm at 3000 at 80. As far as gas I lost maybe a mile per gallon at the most.

 

[bakos24]

As long as you dont stomped on it everyday, you'll will probally not even tell a differnce with gas with 4.10s.
I say go with 4.10s. Like COramprat said, it would not be worth the little change that would get if you go with 3.73s

 

[03ghoststang]

4.10's and you will defenately feel the difference in the the car but hardly on the gas mileage

 

[twogts4us]

Another vote for 4.10s if you're staying NA.

 

[Stan Weiss]

26" tall tires and 1900 RPM is about 67 MPH (Edited using 0.67 5th). With 4.1 that is about 2400 RPM and with 4.3 that is about 2500 RPM

 

[Mossberg]

I have 4.10s and my mileage is just fine. The car pulls much harder than with 3.27s. You won't notice a difference with the 3.55.

 

[XxMustang281xX]

As long as you dont stomped on it everyday, you'll will probally not even tell a differnce with gas with 4.10s.

Try that sometime...

 

[1low03gt]

I wouldn't even waste my time with 3.55's!!!! If you had a 5.0L,maybe,but not with a 4.6L!!!!!
N/A,4.10's,i had 3.73's and wasn't satisfied,it actually bugged me .
So i made the move to 4.10's,and am very happy.Miliage is still good,reason is that i am not working the engine as hard to make her move .