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Posted by bobbystang (Member # 2747) on :
 
what gears should i get for a 99 cobra everyone says 4:10 but how off will my mph be even with a 23 tooth installed likely will buy from www.gefracing.com help?
 

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Posted by HungryHippo (Member # 537) on :
 
you have to buy an electronic speedo calibrator for your car, it will work with any gear. i would get 4.10's
 

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Posted by PseudoCobra (Member # 1689) on :
 
4.10's or at least 3.90's. You really won't see much of a difference if you get 3.73's since you already have 3.55's. I have the 4.10's and love very second of them. I do nothing but go 80mph on the freeway and still get 17MPG. If you want to be fast get the 4.10's, if you want something different get the 3.90's
 

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Posted by st5150 (Member # 51) on :
 
4.10's are as steep as you can go with the IRS rear end in the '99+ cobras.... or else 4.30's would be an ideal choice.
 

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Posted by street_illegal_stang (Member # 1554) on :
 
4:30 go good on the cobras
4:10 for daliy driving
 

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Posted by Black94 5.0 (Member # 655) on :
 

quote:

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Originally posted by HungryHippo:
you have to buy an electronic speedo calibrator for your car, it will work with any gear. i would get 4.10's

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....4.10's

[ April 24, 2003, 01:44 AM: Message edited by: Black94 5.0 ]
 

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Posted by bobbystang (Member # 2747) on :
 
thanks guys will likely go with 4:10 but if you guys can tell me more about the piece i need for the proper speedo reading how much and is it on gefracing.com if not where can i get it would appreciate the help
 

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Posted by blackmagic02GT (Member # 1786) on :
 
at least 4.10's. there are two ways to fix your speedo. first, buy a speedcal from dallas mustang or brothers, plug it in and go. not too hard. the other way is to have a chip burned for the car. the chip can correct for any mods you have done plus recal your speedo, turn on your fans at a lower temp, tune for more power if you run high octane gas, change your shift points and shift firmness if you had an auto, etc, etc. if your not going to do other mods get the speedcal. if you plan to do more in the future get the chip. ray
 

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Posted by 90 Stang5.0 (Member # 2710) on :
 

 

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