# 3.73's or 4.10's????

**URL:** <https://forums.speedlife.net/t/3-73s-or-4-10s/185828>\
**Category:** PittSpeed Automotive\
**Created:** [October 25, 2006, 5:38pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828 "2006-10-25T17:38:51Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![DTMVENG24](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@DTMVENG24](https://forums.speedlife.net/u/DTMVENG24)\
**Post date:** [October 25, 2006, 5:38pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/1 "2006-10-25T17:38:51Z")

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Just curious what the pro’s and cons of both gears are. I’ve heard that for all around driving it good to have the 3.73’s where as the 4.10’s are really good for track use but will kill your gas mileage. Anybodys who has had experience with either one please post your suggestions. Oh yea the car is a 02 5spd Mustang GT which is basically stock except for a mac cai and flowmaster exhaust.🆒

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**Author:** ![Swift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/swift/32/6024_2.png) [@Swift](https://forums.speedlife.net/u/Swift)\
**Post date:** [October 25, 2006, 6:03pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/2 "2006-10-25T18:03:55Z")

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i had an '03 mustang gt w/ an x-pipe, cat-back, pullies, a cold air induction and 3.73’s it ran pretty good decent on the highway, but if i could do it again i would go w/ 4.10’s, the 3.73’s were pretty good out of the hole and i noticed a differenece, but i put 4.10’s in my old '97 camaro and was very much more impressed and from what i heard from other mustang guys, 4.10’s and 3.73’s aren’t to big of a difference crusing in 5th

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**Author:** ![DTMVENG24](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@DTMVENG24](https://forums.speedlife.net/u/DTMVENG24)\
**Post date:** [October 25, 2006, 6:07pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/3 "2006-10-25T18:07:36Z")

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Oh ok cool swift cause some people make it seem like the 4.10’s are rediculous to drive while on the highway but its nice to have an opinion from someone who has actually had them and not here say. Thanks.

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**Author:** ![bgblockelcamino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bgblockelcamino/32/5997_2.png) [@bgblockelcamino](https://forums.speedlife.net/u/bgblockelcamino)\
**Post date:** [October 25, 2006, 6:31pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/4 "2006-10-25T18:31:07Z")

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4:10s are not too bad when you have overdrive. it depends on what you are looking to do though

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**Author:** ![01CobraSVT](https://avatars.discourse-cdn.com/v4/letter/0/5f8ce5/32.png) [@01CobraSVT](https://forums.speedlife.net/u/01CobraSVT)\
**Post date:** [October 25, 2006, 6:55pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/5 "2006-10-25T18:55:42Z")

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I’d go 3:73’s for a 2 valve 4.6, 4:10’s or 4:30’s suit the 4 valve better as they rev higher.

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**Author:** ![JackdUp](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jackdup/32/6015_2.png) [@JackdUp](https://forums.speedlife.net/u/JackdUp)\
**Post date:** [October 25, 2006, 7:03pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/6 "2006-10-25T19:03:04Z")

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4.56:1 ftw

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**Author:** ![Swift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/swift/32/6024_2.png) [@Swift](https://forums.speedlife.net/u/Swift)\
**Post date:** [October 25, 2006, 7:46pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/7 "2006-10-25T19:46:06Z")

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> [@food past midnight?](https://forums.speedlife.net/t/food-past-midnight/25358/2):
>
> Oh ok cool swift cause some people make it seem like the 4.10’s are rediculous to drive while on the highway but its nice to have an opinion from someone who has actually had them and not here say. Thanks.

no problem man i think you will notice a substantial difference w/ either gears, but if i were you i would go w/ 4.10’s

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**Author:** ![Dominator](https://avatars.discourse-cdn.com/v4/letter/d/a4c791/32.png) [@Dominator](https://forums.speedlife.net/u/Dominator)\
**Post date:** [October 25, 2006, 9:58pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/8 "2006-10-25T21:58:44Z")

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the difference is if you get 4.10’s first, your only going to do it once and be happy. If you go 3.73 your going to be pissed off that you didn’t man up and get 4.10’s.

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**Author:** ![Orr89rocz](https://avatars.discourse-cdn.com/v4/letter/o/ac91a4/32.png) [@Orr89rocz](https://forums.speedlife.net/u/Orr89rocz)\
**Post date:** [October 25, 2006, 11:13pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/9 "2006-10-25T23:13:03Z")

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i know one kid with a full bolt on GT on another forum and he runs 3.73s… he says thats as much as he would go. i’d say 4.10’s for a 4v and 3.73’s for a 2v  
if you arent lookin to race it often and want a good compromise between driving and racing.

if you want to maximize more 1/4 mile with alittle less mileage on the highway, then 4.10’s for the GT 2v and 4.30s+ for the 4v cobras/mach I

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**Author:** ![sunhawk08](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@sunhawk08](https://forums.speedlife.net/u/sunhawk08)\
**Post date:** [October 25, 2006, 11:28pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/10 "2006-10-25T23:28:42Z")

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Different rim height also comes into play don’t forget that whatever you do.But thats only if you have diffrent size wheels then stock.

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**Author:** ![Quik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik/32/5979_2.png) [@Quik](https://forums.speedlife.net/u/Quik)\
**Post date:** [October 26, 2006, 3:50am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/11 "2006-10-26T03:50:58Z")

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> [@f/s SKS](https://forums.speedlife.net/t/f-s-sks/25361/4):
>
> Different rim height also comes into play don’t forget that whatever you do.But thats only if you have diffrent size wheels then stock.

rim size isnt going to matter unless you add into weight. its when you change overall height where it makes a difference

now 4.6s like to rev but also have to remember you dont want to be in 1.1 and run out of steam either…just ask swift about his latest experience with to much gear for a stock motor

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**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [October 26, 2006, 3:57am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/12 "2006-10-26T03:57:27Z")

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4;10’s

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**Author:** ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)\
**Post date:** [October 26, 2006, 4:13am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/13 "2006-10-26T04:13:45Z")

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> [@Pewter"](#):
>
> 4;10’s

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**Author:** ![Swift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/swift/32/6024_2.png) [@Swift](https://forums.speedlife.net/u/Swift)\
**Post date:** [October 26, 2006, 6:53am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/14 "2006-10-26T06:53:09Z")

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> [@POLISH POWER DRINKING](https://forums.speedlife.net/t/polish-power-drinking/23623/100):
>
> rim size isnt going to matter unless you add into weight. its when you change overall height where it makes a difference
> 
> now 4.6s like to rev but also have to remember you dont want to be in 1.1 and run out of steam either…just ask swift about his latest experience with to much gear for a stock motor

yea but dont scare the boy i ran out of gear in my stock '02 ss w/ 4.56’s, 4.10’s in that mustang from my experience w/ my old mustangs will be perfect

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**Author:** ![obi-1](https://avatars.discourse-cdn.com/v4/letter/o/ac8455/32.png) [@obi-1](https://forums.speedlife.net/u/obi-1)\
**Post date:** [October 26, 2006, 10:06am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/15 "2006-10-26T10:06:39Z")

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I put 3.73’s in my truck because I was worried 4.10’s would be too low.  
Now, on the highway 2600 RPM at 70 mph in 5th.

4.10’s would only be about 200 rpm higher, so definitely not ridiculous.

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**Author:** ![Swarzkopf](https://avatars.discourse-cdn.com/v4/letter/s/7feea3/32.png) [@Swarzkopf](https://forums.speedlife.net/u/Swarzkopf)\
**Post date:** [October 28, 2006, 6:15am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/16 "2006-10-28T06:15:01Z")

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Consider how sticky your rear tires are also…it can be tough getting stock GT 245/45/17 Eagle’s to grip with 4.10s under decent throttle. Hell, it can be tough with stock 3.27s. More gear doesn’t really help if it just makes you spin more. If you plan on buying drag radials or something I’d go with the 4.10s for sure, otherwise, I’d personally stick with the 3.73s.

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**Author:** ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)\
**Post date:** [October 28, 2006, 7:23am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/17 "2006-10-28T07:23:49Z")

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go 4.10s u will be happy

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<div class="post-metadata">

**Author:** ![Swift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/swift/32/6024_2.png) [@Swift](https://forums.speedlife.net/u/Swift)\
**Post date:** [October 28, 2006, 8:15am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/18 "2006-10-28T08:15:06Z")

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> [@Aaron (Skunkapes) Welcome Home Drunk Fest Tonight 3/3!!](https://forums.speedlife.net/t/aaron-skunkapes-welcome-home-drunk-fest-tonight-3-3/25383/56):
>
> go 4.10s u will be happy

:bigthumb:

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**Author:** ![sunhawk08](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@sunhawk08](https://forums.speedlife.net/u/sunhawk08)\
**Post date:** [October 30, 2006, 11:09am UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/19 "2006-10-30T11:09:21Z")

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3.73’s = better gas milage

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**Author:** ![Silver\_SS](https://avatars.discourse-cdn.com/v4/letter/s/f19dbf/32.png) [@Silver\_SS](https://forums.speedlife.net/u/Silver_SS)\
**Post date:** [October 30, 2006, 7:40pm UTC](https://forums.speedlife.net/t/3-73s-or-4-10s/185828/20 "2006-10-30T19:40:30Z")

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4:10 = a win over the guy with 3:73

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