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10-14-2013, 01:31 PM
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#1
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Member
Join Date: Jul 2013
Location: Garland
Age: 34
Posts: 49
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Best gears for an Auto??
I have an auto mustang with a Boss Intake, what gears are my best option? I track the car from time to time not too concerned about mpg.
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2011 A6 Kona Blue 5.0
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10-14-2013, 01:39 PM
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#2
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Member
Join Date: Aug 2013
Location: Sherman
Age: 43
Posts: 50
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I just made the switch to 3.73 gears...I have not track tested them yet but for day to day driving, I love them!!! I know with the boss intake, you will enjoy them even more as it will help with the low end torque loss. Just make sure you have good, wide tires.
Last edited by cmanley99; 10-14-2013 at 01:43 PM.
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10-14-2013, 07:00 PM
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#3
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Senior Member
Join Date: Jun 2013
Location: Cedar Hill
Age: 37
Posts: 220
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What gears do you currently have?
__________________
'13 5.0 in deep impact blue, "The Blue Goose"
A few mods, just a daily.
94 F150 302
New project, thinking built, procharger, powerglide, tubbed, super sleeper 
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10-14-2013, 07:08 PM
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#4
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Senior Member
Join Date: Jun 2013
Location: Irving / Oklahoma City
Age: 42
Posts: 1,896
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How do you tell what gears you have? At 2k rpm I am right at 70mph.
-Alex
__________________
2012 GT Premium Hardtop with XX Transmission
Mods page: http://dfw50s.com/showthread.php?t=3376
Ford Racing . Pypes . BMR . CDC . American Muscle . DDM Tuning . BFG . J&M . Amsoil . MMD. JLT
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10-14-2013, 08:36 PM
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#5
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Member
Join Date: Jul 2013
Location: Garland
Age: 34
Posts: 49
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Originally Posted by Mrjeremyt
What gears do you currently have?
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4:10s
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2011 A6 Kona Blue 5.0
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10-14-2013, 09:06 PM
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#6
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Senior Member
Join Date: Jun 2013
Location: Cedar Hill
Age: 37
Posts: 220
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Originally Posted by StangFreak
4:10s
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Are you sure?? That's the lower gears available from the factory... Most torque in those gears. Why the change? That's a better question, are you looking for low end or all around?
__________________
'13 5.0 in deep impact blue, "The Blue Goose"
A few mods, just a daily.
94 F150 302
New project, thinking built, procharger, powerglide, tubbed, super sleeper
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10-14-2013, 09:07 PM
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#7
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Senior Member
Join Date: Jun 2013
Location: Cedar Hill
Age: 37
Posts: 220
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Originally Posted by Dominic Toretto
How do you tell what gears you have? At 2k rpm I am right at 70mph.
-Alex
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There is a tag on the axle if you can decipher it. There is also a vin decoding website, although I don't know what it is. Do you have the window sticker? It also has it...
__________________
'13 5.0 in deep impact blue, "The Blue Goose"
A few mods, just a daily.
94 F150 302
New project, thinking built, procharger, powerglide, tubbed, super sleeper
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10-14-2013, 09:48 PM
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#8
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Senior Member
Join Date: Aug 2013
Location: Austin, TX
Posts: 178
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3.31 seems to work best up until you trap 126mph or so, then you either need a 30" tire or go back to stock 3.15.
__________________
NA 2011 GT Auto
[email protected]
Texas Mile - 152.8 half mile/180.0 mile
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10-14-2013, 09:53 PM
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#9
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Senior Member
Join Date: Jun 2013
Location: Irving / Oklahoma City
Age: 42
Posts: 1,896
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Originally Posted by Mrjeremyt
There is a tag on the axle if you can decipher it. There is also a vin decoding website, although I don't know what it is. Do you have the window sticker? It also has it...
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No window sticker. Car was not purchased new. Guess I could just ask a dealership.
-Alex
__________________
2012 GT Premium Hardtop with XX Transmission
Mods page: http://dfw50s.com/showthread.php?t=3376
Ford Racing . Pypes . BMR . CDC . American Muscle . DDM Tuning . BFG . J&M . Amsoil . MMD. JLT
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10-14-2013, 09:54 PM
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#10
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Senior Member
Join Date: Aug 2013
Location: Austin, TX
Posts: 178
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It came with 3.15, they all did.
__________________
NA 2011 GT Auto
[email protected]
Texas Mile - 152.8 half mile/180.0 mile
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10-14-2013, 10:04 PM
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#11
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Senior Member
Join Date: Jun 2013
Location: Irving / Oklahoma City
Age: 42
Posts: 1,896
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Originally Posted by kdanner
It came with 3.15, they all did.
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Thanks.
-Alex
__________________
2012 GT Premium Hardtop with XX Transmission
Mods page: http://dfw50s.com/showthread.php?t=3376
Ford Racing . Pypes . BMR . CDC . American Muscle . DDM Tuning . BFG . J&M . Amsoil . MMD. JLT
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10-14-2013, 11:26 PM
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#12
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Member
Join Date: Jul 2013
Location: Garland
Age: 34
Posts: 49
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Originally Posted by Mrjeremyt
Are you sure?? That's the lower gears available from the factory... Most torque in those gears. Why the change? That's a better question, are you looking for low end or all around?
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Basically all around I want a good aggressive gear at the track but that's also good for hwy racing.
__________________
2011 A6 Kona Blue 5.0
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10-14-2013, 11:30 PM
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#13
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Senior Member
Join Date: Jun 2013
Location: Cedar Hill
Age: 37
Posts: 220
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Originally Posted by kdanner
3.31 seems to work best up until you trap 126mph or so, then you either need a 30" tire or go back to stock 3.15.
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Mine came factory with 3.31s, and my brothers came with 3.55s... I've also driven a 2012 with factory 4.10s...
__________________
'13 5.0 in deep impact blue, "The Blue Goose"
A few mods, just a daily.
94 F150 302
New project, thinking built, procharger, powerglide, tubbed, super sleeper
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10-14-2013, 11:32 PM
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#14
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Senior Member
Join Date: Aug 2013
Location: Austin, TX
Posts: 178
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Originally Posted by Mrjeremyt
Mine came factory with 3.31s, and my brothers came with 3.55s... I've also driven a 2012 with factory 4.10s...
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No 2011+ automatic ever came with anything but 3.15. No 2011+ ever came with 4.10. Manuals are 3.31, 3.55, or 3.73.
__________________
NA 2011 GT Auto
[email protected]
Texas Mile - 152.8 half mile/180.0 mile
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10-14-2013, 11:32 PM
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#15
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Senior Member
Join Date: Jun 2013
Location: Cedar Hill
Age: 37
Posts: 220
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Originally Posted by StangFreak
Basically all around I want a good aggressive gear at the track but that's also good for hwy racing.
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I would go with 3.55s, just as a good medium. You won't see extremely excessive gains or losses.
__________________
'13 5.0 in deep impact blue, "The Blue Goose"
A few mods, just a daily.
94 F150 302
New project, thinking built, procharger, powerglide, tubbed, super sleeper
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