New Mustang purchase

[larietrope]

(2) concerns:
I want a 2021 Mustang GT not a 22 that's down on HP and torque. Which leads to the next concern. I want an automatic. I prefer a 3:55 rear gear but running into 3:15 mostly. What's the downside to a 3:15 ?
Thanks.

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[TrackMustang]

There should not be a GT with 3.15…?

edit: shows what I know about a10s…

 

[KingKona]

....I want an automatic......What's the downside to a 3:15 ?

I haven't driven an A10, but my WAG is there's not much difference/downside to 3.15s.

After all, we're talking about 10 friggin' gears here. Can't be much of a difference.

 

[m3incorp]

The 3.55 gear was a $300 option on mine. (I think it was $300, may have been $350). Mine is manual, not sure how it is for the Autos.

 

[Brokestang]

3.15 is standard gear ratio in the gt. Here's my 3.55 option that was $795. I test drove 3.15 geared a10 & my 3.55 a10 car was a bit quicker or snappier feeling.

 

[Bikeman315]

(2) concerns:
I want a 2021 Mustang GT not a 22 that's down on HP and torque. Which leads to the next concern. I want an automatic. I prefer a 3:55 rear gear but running into 3:15 mostly. What's the downside to a 3:15 ?
Thanks.

To answer your questions. The “10HP” loss is a crock. It’s measured at the crank not the wheels. You will never feel it.

The 3.55 will feel better off the line, a little more peppy. The downside is higher revs and slightly decreased fuel mileage. I would have preferred the 3.55 on my 19’ GT/CS A10 but the car I chose had the 3.15’s. Three years in and I’m fine with it.

Unless you find a smokin’ deal on a 21‘ do yourself a favor and get a 22‘.

 

[Bikeman315]

The 3.55 gear was a $300 option on mine. (I think it was $300, may have been $350). Mine is manual, not sure how it is for the Autos.

In a M6 car the 3.55 is cheaper because you start with the 3.31. It’s the same pumpkin as the 3.31. The 3.15 uses a different pumpkin so moving up costs more.

 

[young at heart]

I have a 2020 A10 with 3.15s and I’ve come to see the 3.15s as an actual advantage. The 3.55s should dig harder on a pull theoretically but in real life with stock tires the 3.15s will hook up better and they‘ll hang in gear longer usually requiring one less shift pull for pull.

Honestly, first and second are so low with the A10 it doesn’t much matter. These things pull like a freight train.

BTW, I’m like you on holding out for the 2021. No way I’d personally bite on a 2022. Feel it or not, I’d know it and would constantly think about it. Too old to own something that diminishes the joy.

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