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Old 02-08-2005, 10:13 PM   #1 (permalink)
J114
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Default Which gear ratio?

Hi guys,
I am having trouble deciding on which gear ratio to go with. I am
thinking of going with 3.55 or 3.73's. Any advice would be appreciated.
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Old 02-09-2005, 03:24 PM   #2 (permalink)
Beavis
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Default Re: Which gear ratio?

3.73, good for road and freeway. anything higher then 373 i hear will keep your car more accelerated and can over heat your car more in the highway. so i would say 373.
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Old 02-09-2005, 03:29 PM   #3 (permalink)
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Default Re: Which gear ratio?

yeah go with the 373's bro
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Old 02-09-2005, 10:31 PM   #4 (permalink)
chrisallen
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Default Re: Which gear ratio?

Yep, I was partial to the 3.73's also.
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Old 02-09-2005, 10:45 PM   #5 (permalink)
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Default Re: Which gear ratio?

Quote:
Originally Posted by Beavis
anything higher then 373 i hear will keep your car more accelerated and can over heat your car more in the highway. so i would say 373.
If your cooling system is up to par, you should never have to worry about overheating no matter what gears you have.
Most people go with 3:73's for a 5 speed and 4:10's for AOD's
I don't recommend 4:10's if you have a C-4 and drive it on the street....like I do.
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Old 02-10-2005, 09:12 PM   #6 (permalink)
J114
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Default Re: Which gear ratio?

thank for the input guys
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Old 02-15-2005, 09:07 PM   #7 (permalink)
302stang
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Default Re: Which gear ratio?

i don't know i had 3.73 but wasn't a fan the starts sucked it seemed like as soon as u took for foot of the clutch you had to shift to 2 id say 3.55
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Old 02-19-2005, 04:52 PM   #8 (permalink)
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Default Re: Which gear ratio?

it depends on what you have.
Overheating from keeping it accelerated? Thats not a very intelligent statement. First of all, it will be at a higher RPM when cruising, so what? Keeping it more accelerated doesn't even make sense.

If you want to know which gear to go with, without any other info on your car, or what you will be doing with it, then keep the stock 2.73's or 3.08's in there.

I could recommend 3.55's if you're planning on running a C4, 30psi of boost, 28" slicks, and 135+mph trap speeds.
OR I could recommend 4.56 gears if you're a high revving NA 306.

The answer is "it depends"
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Old 02-19-2005, 05:02 PM   #9 (permalink)
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Default Re: Which gear ratio?

Quote:
Originally Posted by 82 GT
Most people go with 3:73's for a 5 speed and 4:10's for AOD's
I agree with 82 GT
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Old 02-19-2005, 05:57 PM   #10 (permalink)
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Default Re: Which gear ratio?

Go with 3.73's.. you will feel a huge difference.. it will be fun to drive!!
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Old 02-20-2005, 07:38 PM   #11 (permalink)
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Default Re: Which gear ratio?

if you drive on the highway get the 3.55's
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Old 02-20-2005, 07:47 PM   #12 (permalink)
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Default Re: Which gear ratio?

What year is the car, what have you done to it, and what transmission does it have? Also, what are your intentions with the car? Is it a daily driver?
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Old 03-17-2007, 11:07 PM   #13 (permalink)
warlock 92
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Default Re: Which gear ratio?

can someone help me out? I just bought a 93 Cobra the pervious owner changed the rear end from a 3:08 to 3:73. The car runs great but my speedo is way off. What do I need to do to make it right?
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Old 03-18-2007, 11:28 AM   #14 (permalink)
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Default Re: Which gear ratio?

Warlock92, you need to change your speedo driven gear on the end of your speedo cable where it meets the transmission. You will have to see if an aftermarket company offers a replacement gear for your gear ratio. According to some literature I have, Saleen Performance Parts offers a 23 tooth gear for a 93 cobra with 3.55 gears, but not sure if they make one for your 3.73's. Worst case scenario you may have to change your speedo drive gear by partially dis-assembling the transmission. Hopefully there is a driven gear available for your set up.
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Old 03-21-2007, 11:57 AM   #15 (permalink)
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Default Re: Which gear ratio?

http://www.uprproducts.com/shopping/shopexd.asp?id=395

Installation is easy, one bolts and a couple lock pins later your done. Good luck.
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Old 03-21-2007, 12:03 PM   #16 (permalink)
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Default Re: Which gear ratio?

http://www.uprproducts.com/shopping/shopexd.asp?id=395

Installation is easy, one bolts and a couple lock pins later your done. Good luck.
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