Yea the 3.73 for manual and 4.10 for auto does not go to all mustangs in general. It was only for the 04 and down, can be argued for the 05-10, but definitely not for the newer 11+.
The 4:10's, the tune. the intake were the first and only mods I've done - all around 9 years ago. Never looked back, you'll feel it in the seat of your pants and know with those mods you'll probably beat most stock GT's red light to red light. (Not that I'd endorse street racing:danger
BTW, I'm a 2005 4.0 V6 Auto
The car is going to have almost no 1st gear, and you are going to top out pretty quick. The 5.0 has plenty of power, no need for such extreme gears. Most go 3.31 or 3.15 (stock) for the autos.
Most of them think the exact same thing as you thought. You do feel a difference in acceleration because gears are shorter and you go through them quicker. Realistically though its just how the car "feels", gears like 3.31 will still be "faster"
Different gearing. Assume you are talking about the T-56 Magnum? That has 2 different choices for gearing available, the 2.97 and the 2.66, both completely different than the 6R80's 4.17.
A 4.17 1st gear with 3.31s is a total of 13.8 (4.17x3.31)
A 2.66 1st gear with 4.10s is a total of 10.9
So realistically 4.10s in the T-56 magnum that uses a 2.66 1st gear is going to be LESS aggressive than the 6R80 with 3.31s.
The fastest auto guy's have tried all the ratio's. You just got sold more parts for no real gain. 3.31's for auto I think were the fastest. Your factory 3.15's would have been fine. Money much better spent elsewhere...
I have the ford racing 4.10's installed on my 2014, I don't race or any of that I personally like the low geared cars . True it shortens the shifting but I like it
I think it wakes the car up
Also if you do a year change you will need a tuner to adjust your speedo
Thanks guys.
Some of you can be blunt but I just take that as old timers knowing what they talking about. Been talking to Alex at AM and kudos to him, he will take them back and exchange.
Like I told Alex, I'm not a track guy. I'm just the local guy on the town cruise that like to show off.
OP, what did you exchange them for? You probalby don't need to get rid of the 3.15s honestly, that $$$ for the gears and the $$$ to have a shop install can go elsewhere and get you way better bang for the buck.
OP, what did you exchange them for? You probalby don't need to get rid of the 3.15s honestly, that $$$ for the gears and the $$$ to have a shop install can go elsewhere and get you way better bang for the buck.
Honestly for the auto the guys leave the 3.15s or go 3.31s, 3.55s will have the trans shifting into 4th and out of the peak powerband before the 1/4 mile. For the stick, just go 4.10s or even 4.30s and call it a day. People get all scared off by the highway RPM with the steeper gears. If you're already at 3.73s, another 100-150 RPM on the highway isn't going to kill you. Go up half or 1 inch on rear tire size and it'll come right back down for cruising.
4.10 and people would be shifting into 5th as they cross the line. With my 28.4" tall tires I will top at 116mph in 4th gear on 4.10 gears. With 3.73 I top at like 128mph in 4th.
I can't imagine needing to cross the 1/4 mile line needing to shift to 5th which for sure 4.30 would require me to and I have tall as hell tires. This coming from me shifting at 7600rpm.
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