Go Back   The Mustang Source - Ford Mustang Forums > Mustang by Model Year > 2010-2014 Mustang
Sign in using an external account
Register Forgot Password?
Search

2010-2014 Mustang News of the Current Generation Mustang
Sponsored By: CARiD

Welcome to The Mustang Source!
Welcome to The Mustang Source,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 6/5/11, 2:18 PM   #1
V6 Member
 
LuisV's Avatar
 
David

Join Date: June 2, 2011
Location: Fort Polk, LA
Posts: 65
2011 Mustang GT 5.0
How to find out my gear ratio.

forgive me for being an idiot. but how exactly can i found out my gear ratio? i keep reading other forums and people always say "look at your window sticker" and well, i've scanned over this thing countless times. its not on there anywhere. and others say, "if your going such and such speed at such and such RPMs than you have such and such gears". come on there has to be an easier way to tell what i have, i have the brembo break package, and i HOPE i have 3.73 gears. but i see people with the BBP and some have 3.55 and others have 3.73. so basically is there any TRUE way to tell what i have?
__________________
2011 Mustang GT 5.0 | Premium | Candy Red Metallic | Brembo Brake Package | Accessory Package 5
Mods: BOSS 302 Intake Manifold | Steeda CAI | Steeda Custom Tune | 10,000K HID Head&Fog Lights
Black Out Light Tint (All lights and side markers)

2010 Mustang V6 | Premium |Candy Red Metallic |Pony/Comfort Packages
LuisV is offline   Reply With Quote
Old 6/5/11, 2:23 PM   #2
Cobra Member
 
LEwis26's Avatar
 
Mike

Join Date: January 8, 2011
Location: Chicago
Posts: 1,237
2012 GT
Garage
It would be in your option list on your window sticker. If nothing is listed, you have the stock 3.31's.

Also, just a pet peeve of mine, but it's spelled BRAKE not break.
__________________
2012 GT Premium || PW w/ Black OTT stripes || Ebony Interior || 6MT || BBP || 3.73 || HID || CP || EP || SP || Hood Scoop || Pedestal Spoiler
LEwis26 is offline   Reply With Quote
Old 6/5/11, 2:23 PM   #3
GTR Member
 
Ltngdrvr's Avatar
 

Join Date: February 18, 2010
Location: S.E. Texas
Posts: 4,990
2014 Mustang GT, 1994 Lightning, 2012 F250 PowerStroke
There is a tag on the axle housing that has the ratio on it.

If there is no optional gear ratio listed on your GT's window sticker then you have 3.31 rear gears if you have a manual transmission.

All automatic GT's have 3.15 gears as there are no optional ratios available for them.
__________________
2014 Mustang GT, Black, Recaros, 6 Spd Manual, Brembos, 3.73
My Gang: www.v6mustangperformance.com
My YouTube Channel: http://www.youtube.com/user/Ltngdrvr?feature=mhum
My albums: http://haloclub.com/gallery/album02?page=1
Fuel economy tracker: http://www.fuelly.com/driver/ltngdrvr/mustang
Ltngdrvr is offline   Reply With Quote
Old 6/5/11, 2:37 PM   #4
Bullitt Member
 

Join Date: January 24, 2010
Location: fredneck county, MD
Posts: 311
2011 GT
if there is any more confusion after the previous correct info is still not enough:

1. if you have a manual transmission the optional ring gears of 3.55 or 3.73 would show as a $395 option on your window sticker

2. if you have an automatic transmission the ring gear is 3.15 and no optional ratio was offered for that transmission
m4reapr is offline   Reply With Quote
Old 6/5/11, 2:43 PM   #5
V6 Member
 
LuisV's Avatar
 
David

Join Date: June 2, 2011
Location: Fort Polk, LA
Posts: 65
2011 Mustang GT 5.0
yeah i have the 6 speed manual. so if i have the 3.31 gear ratio, would it be wise to upgrade that if i make other mods to my car? the mods i plan on making are BOSS Intake Manifold, CAI (possibly Airaid or JLT), Tune, and Borla ATAK Exhaust. would a 4.10 ratio be a good investment?
__________________
2011 Mustang GT 5.0 | Premium | Candy Red Metallic | Brembo Brake Package | Accessory Package 5
Mods: BOSS 302 Intake Manifold | Steeda CAI | Steeda Custom Tune | 10,000K HID Head&Fog Lights
Black Out Light Tint (All lights and side markers)

2010 Mustang V6 | Premium |Candy Red Metallic |Pony/Comfort Packages
LuisV is offline   Reply With Quote
Old 6/5/11, 2:52 PM   #6
Mach 1 Member
 
jaybertx's Avatar
 
Jay

Join Date: May 1, 2011
Location: Sarasota, FL
Posts: 671
2012 Lava Red Mustang GT Premium
Quote:
Originally Posted by LuisV
yeah i have the 6 speed manual. so if i have the 3.31 gear ratio, would it be wise to upgrade that if i make other mods to my car? the mods i plan on making are BOSS Intake Manifold, CAI (possibly Airaid or JLT), Tune, and Borla ATAK Exhaust. would a 4.10 ratio be a good investment?
Single best bang for the buck mod I have ever done to a car. Get the tuner first so that you can adjust the speedo afterward tho.

Don't fear the gear!
__________________
2012 Lava Red Mustang GT Premium | MT | 401A Black/Cashmere | Comfort Package | Backup Camera

Stock engine, stock exhaust, stock suspension, stock wheels, aftermarket floor mats. Hell yeah!!

Future mods: Shed 40 lbs. From me. Not the car.
jaybertx is offline   Reply With Quote
Old 6/5/11, 3:24 PM   #7
GTR Member
 
Ltngdrvr's Avatar
 

Join Date: February 18, 2010
Location: S.E. Texas
Posts: 4,990
2014 Mustang GT, 1994 Lightning, 2012 F250 PowerStroke
Quote:
Originally Posted by LuisV View Post
yeah i have the 6 speed manual. so if i have the 3.31 gear ratio, would it be wise to upgrade that if i make other mods to my car? the mods i plan on making are BOSS Intake Manifold, CAI (possibly Airaid or JLT), Tune, and Borla ATAK Exhaust. would a 4.10 ratio be a good investment?
Depends on what you want out of the car.

4.10 is a lot for a street car, would be good for the dragstrip.
__________________
2014 Mustang GT, Black, Recaros, 6 Spd Manual, Brembos, 3.73
My Gang: www.v6mustangperformance.com
My YouTube Channel: http://www.youtube.com/user/Ltngdrvr?feature=mhum
My albums: http://haloclub.com/gallery/album02?page=1
Fuel economy tracker: http://www.fuelly.com/driver/ltngdrvr/mustang
Ltngdrvr is offline   Reply With Quote
Old 6/5/11, 4:27 PM   #8
Mach 1 Member
 
hahnsolo78's Avatar
 
nate

Join Date: January 14, 2011
Location: minnesota
Posts: 594
2011 mustang gt
Garage
You could look under the rearend and there is a sticker stating the ratio on the pumpkin
hahnsolo78 is offline   Reply With Quote
Old 6/5/11, 7:42 PM   #9
Mach 1 Member
 
hawkeye18's Avatar
 
Jason

Join Date: April 20, 2010
Location: Norfolk, VA
Posts: 733
12 GT Prem (First!)
Garage
Click the image to open in full size.
__________________
2012 GT Premium Coupe 6MT
Kona Blue | Black/Grabber Blue
401A | 3.55 | BBP | CP | SP | EP | GR | HID | RVC | RSS
Delivered 07MAR11 - before anybody else!
hawkeye18 is offline   Reply With Quote
Old 6/5/11, 9:59 PM   #10
V6 Member
 
LuisV's Avatar
 
David

Join Date: June 2, 2011
Location: Fort Polk, LA
Posts: 65
2011 Mustang GT 5.0
Quote:
Originally Posted by Ltngdrvr

Depends on what you want out of the car.

4.10 is a lot for a street car, would be good for the dragstrip.
So 3.73 would be better for a street car?
__________________
2011 Mustang GT 5.0 | Premium | Candy Red Metallic | Brembo Brake Package | Accessory Package 5
Mods: BOSS 302 Intake Manifold | Steeda CAI | Steeda Custom Tune | 10,000K HID Head&Fog Lights
Black Out Light Tint (All lights and side markers)

2010 Mustang V6 | Premium |Candy Red Metallic |Pony/Comfort Packages
LuisV is offline   Reply With Quote
Old 6/5/11, 10:24 PM   #11
Mach 1 Member
 
Everett

Join Date: October 14, 2010
Location: saskatoon
Posts: 700
2000 mustang
Quote:
Originally Posted by LuisV

So 3.73 would be better for a street car?
I have 3.90s and a 5 speed and it was the best mod next to nitrous or boost for acceleration. But if you have a 6 speed you have that really low 6th gear.
Everett is offline   Reply With Quote
Old 6/5/11, 10:51 PM   #12
GTR Member
 
Ltngdrvr's Avatar
 

Join Date: February 18, 2010
Location: S.E. Texas
Posts: 4,990
2014 Mustang GT, 1994 Lightning, 2012 F250 PowerStroke
Quote:
Originally Posted by LuisV View Post
So 3.73 would be better for a street car?
Like I posted, depends on what you are wanting out of the car.

3.73 is a OEM optional ratio so if you wanted, the dealer can flash your PCM for the new gear and you wouldn't need a tune.

4.10's and some sticky drag radials and a tune and it would be super fast at the strip.
__________________
2014 Mustang GT, Black, Recaros, 6 Spd Manual, Brembos, 3.73
My Gang: www.v6mustangperformance.com
My YouTube Channel: http://www.youtube.com/user/Ltngdrvr?feature=mhum
My albums: http://haloclub.com/gallery/album02?page=1
Fuel economy tracker: http://www.fuelly.com/driver/ltngdrvr/mustang
Ltngdrvr is offline   Reply With Quote
Old 6/6/11, 1:31 AM   #13
V6 Member
 
LuisV's Avatar
 
David

Join Date: June 2, 2011
Location: Fort Polk, LA
Posts: 65
2011 Mustang GT 5.0
Yeah I need to do my research on the differences between the gear ratios. I'm thinking 3.73 would be good but since I want to get the boss manifold maybe moving up to 3.90 wouldn't be a bad idea.
__________________
2011 Mustang GT 5.0 | Premium | Candy Red Metallic | Brembo Brake Package | Accessory Package 5
Mods: BOSS 302 Intake Manifold | Steeda CAI | Steeda Custom Tune | 10,000K HID Head&Fog Lights
Black Out Light Tint (All lights and side markers)

2010 Mustang V6 | Premium |Candy Red Metallic |Pony/Comfort Packages
LuisV is offline   Reply With Quote
Old 6/6/11, 3:36 AM   #14
V6 Member
 
LuisV's Avatar
 
David

Join Date: June 2, 2011
Location: Fort Polk, LA
Posts: 65
2011 Mustang GT 5.0
wow this website really simplified things for me. if anyone else needs more info on gear ratios (probably not since everyone answered a simple question of mine :P) and how they work, feel free to check this out. Thanks for all the help guys. i think i'll go with a 3.73 in the end.

http://www.mustangsplus.com/tech/axles/index.htm
__________________
2011 Mustang GT 5.0 | Premium | Candy Red Metallic | Brembo Brake Package | Accessory Package 5
Mods: BOSS 302 Intake Manifold | Steeda CAI | Steeda Custom Tune | 10,000K HID Head&Fog Lights
Black Out Light Tint (All lights and side markers)

2010 Mustang V6 | Premium |Candy Red Metallic |Pony/Comfort Packages
LuisV is offline   Reply With Quote
Old 6/6/11, 5:07 AM   #15
Cobra Member
 
topbliss's Avatar
 

Join Date: May 14, 2008
Location: South Jersey
Posts: 1,130
2007 GT convertible
You don't have to climb under or locate your window stick to determine your rear ratio. Open the drivers door and look at the door jamb sticker under axle and the code will tell you what your car has from the factory

BB - 3.73 ratio
CC - 2.73 ratio
DD - 3.55 ratio
GG - 3.31 ratio
YY - 3.15 ratio
__________________
==================
2007 Redfire Mustang GT Premium Convertible, Black cloth top, convertible soft boot, 5 speed, heated seats, IUP, PTP, Dark charcoal with chamois seats, 18" polished wheels, side air bags, Shaker 500, Wheel Locking Kit, Active Anti-Theft System, spoiler delete, Ford racing X pipe, SLP LM's.. born 10/18/06
http://mustangattitude.com/cgi-bin/s.../2007_00010_01
topbliss is offline   Reply With Quote
Old 6/6/11, 5:27 AM   #16
V6 Member
 
LuisV's Avatar
 
David

Join Date: June 2, 2011
Location: Fort Polk, LA
Posts: 65
2011 Mustang GT 5.0
Quote:
Originally Posted by topbliss View Post
You don't have to climb under or locate your window stick to determine your rear ratio. Open the drivers door and look at the door jamb sticker under axle and the code will tell you what your car has from the factory

BB - 3.73 ratio
CC - 2.73 ratio
DD - 3.55 ratio
GG - 3.31 ratio
YY - 3.15 ratio
yeah i just looked at the sticker on my car. GG. how disappointing lol. definitely need to upgrade that.
__________________
2011 Mustang GT 5.0 | Premium | Candy Red Metallic | Brembo Brake Package | Accessory Package 5
Mods: BOSS 302 Intake Manifold | Steeda CAI | Steeda Custom Tune | 10,000K HID Head&Fog Lights
Black Out Light Tint (All lights and side markers)

2010 Mustang V6 | Premium |Candy Red Metallic |Pony/Comfort Packages
LuisV is offline   Reply With Quote
Old 6/6/11, 9:43 AM   #17
Bullitt Member
 
freyke's Avatar
 

Join Date: January 9, 2005
Posts: 350
VIN = "1ZVBP8CF0B5164662" Ok then what the heck is mine? I know it has the 3:73 because it's on the window sticker.
__________________
Age: 1962
Occupation: Satellite Communications Systems Supervisor
freyke is offline   Reply With Quote
Old 6/6/11, 10:05 AM   #18
Mach 1 Member
 
Modshack's Avatar
 
Steve

Join Date: July 15, 2010
Location: Greenville NC
Posts: 532
2011 GT
Quote:
Originally Posted by freyke View Post
VIN = "1ZVBP8CF0B5164662" Ok then what the heck is mine? I know it has the 3:73 because it's on the window sticker.
Huh? Trick question eh?
__________________
Steve
GT Premium in Performance white | 3.73's | Brembo | FRPP "P" on D Spec's | Fays2 Watts Link | Steeda Induction/Tune | GT500 muffs w/FRPP X Pipe | Sparco seats

Mod pics in the "Mustang Stuff" album here: http://public.fotki.com/ttschwing/m-things/

Last edited by Modshack; 6/6/11 at 11:30 AM.
Modshack is offline   Reply With Quote
Old 6/6/11, 10:50 AM   #19
Mach 1 Member
 
jaybertx's Avatar
 
Jay

Join Date: May 1, 2011
Location: Sarasota, FL
Posts: 671
2012 Lava Red Mustang GT Premium
Quote:
Originally Posted by freyke View Post
VIN = "1ZVBP8CF0B5164662" Ok then what the heck is mine? I know it has the 3:73 because it's on the window sticker.
Yours is 3.73.

BTW, what color is your Ingot Silver car?
__________________
2012 Lava Red Mustang GT Premium | MT | 401A Black/Cashmere | Comfort Package | Backup Camera

Stock engine, stock exhaust, stock suspension, stock wheels, aftermarket floor mats. Hell yeah!!

Future mods: Shed 40 lbs. From me. Not the car.
jaybertx is offline   Reply With Quote
Old 6/6/11, 11:11 AM   #20
Member
 
ken

Join Date: May 23, 2011
Location: In.
Posts: 33
2010 Taurus SHO
??

Quote:
Originally Posted by jaybertx View Post
Yours is 3.73.

BTW, what color is your Ingot Silver car?
The internet is just an amazing tool.
03sonic is offline   Reply With Quote
Old 6/6/11, 11:11 AM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


 

Sponsors



 

MotM Winners
December 2012 MotM Winner November 2012 MotM Winner September 2012 MotM Winner August 2012 MotM Winner

All times are GMT -6. The time now is 4:01 PM.


Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.