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texag70
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- Oct 15, 2014
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- South Georgia
- Vehicle(s)
- 2015 Ruby Red GT Prem
3.55 Diff.
As I understand it the 3.55 gives a little better mpg in typical city driving where the 3.15 does better at highway cruise speeds. Regardless, I know it gives better punch off the line and I had the extra bucks so I went for it. Other reason is I'm rebuilding my 65 coupe and have a new limited slip rear end going in it along with a Tremec 6 speed.
As I understand it the 3.55 gives a little better mpg in typical city driving where the 3.15 does better at highway cruise speeds. Regardless, I know it gives better punch off the line and I had the extra bucks so I went for it. Other reason is I'm rebuilding my 65 coupe and have a new limited slip rear end going in it along with a Tremec 6 speed.
Turrizm
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- Columbus, Ohio
- First Name
- Will
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- 2015 Mustang GT
I have it on my GT auto transmission. Love it. Effortless throttle. Car is super peppy around town. I would not order the car without it. Not sure about the performance difference on the track.
Wolfman625
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- Oct 13, 2014
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- Charlottesville VA
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- 2015 Mustang GT in Deep impact Blue
I have the optional 3:55 gears in my manual GT. I like it alot and has a nice pull of the line. I Test drove the base gt with base gears and I noticed it picks up much nicer. But I have to say that I really think i will be going to the 3:73.
