02 gt auto 373 or 410? - Mustang Evolution

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Old 01-21-2013, 06:55 AM   #1
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02 gt auto 373 or 410?

I'm going to be doing gears. Which is better 373 or 410 in my automatic and why?
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Old 01-21-2013, 07:52 AM   #2
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The consensus is 4.10's by a land slide.. If you drive interstates or highways maybe consider the 3.73's though.. There are a bunch of detailed threads on this topic already........
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Old 01-21-2013, 09:49 AM   #3
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For 1/4 mile performance 4.10 will be the best. I had 3.73s in my 99 GT auto. They dropped me from 14.2 to 13.9 in the 1/4. I didnt go with 4.10 because of highway driving and the 4R70W trans only has a .70 overdrive.
at 70mph
3.73= 2,400rpms
4.10= 2,650rpms

As you know autos have a slight lag off the line. 3.73s just about got rid of the lag but 4.10s will give you a perfect launch on street tires. Plus in the 1/4 you will be crossing the finsh line at 100mph.
3.73 at 100mph = 4,900rpms
4.10 at 100mph = 5,400rpms
So you will have more H.P. at the finish. My car ran 13.92 with 3.73s, I am guessing it would have run 13.75 with 4.10s.
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Old 01-21-2013, 11:07 AM   #4
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American muscle does a good job on each gear showing the rpm range in each gear for manual and auto here is both. Its on the right hand side below item description.

3.73
http://www.americanmuscle.com/ford-373-9904gt.html
4.10
http://www.americanmuscle.com/ford-410-9904gt.html
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Old 01-21-2013, 11:15 AM   #5
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American muscle also has this for your auto. A buddy of mine has it with 4.10s and he chirps the tires in 3rd every time.
It makes the auto fun!

96-00
http://www.americanmuscle.com/perfor...body-9604.html

01-04
http://www.americanmuscle.com/perfor...body-0104.html

This also makes things more fun!!!
http://www.americanmuscle.com/bm-rat...fter-9400.html
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Old 01-21-2013, 12:31 PM   #6
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4.10s all day, had them on my 02 gt ran a 13.2 best
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Old 01-21-2013, 08:30 PM   #7
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Quote:
Originally Posted by scottiep101 View Post
I'm going to be doing gears. Which is better 373 or 410 in my automatic and why?
Quote:
Originally Posted by jjsg09 View Post
American muscle also has this for your auto. A buddy of mine has it with 4.10s and he chirps the tires in 3rd every time.
It makes the auto fun!

96-00
Performance Automatic Mustang Street/Strip Valve Body (96-00 GT, V6 Auto) PA45302 - Free Shipping!

01-04
Performance Automatic Mustang Street/Strip Valve Body (01-04 Auto) PA45303 - Free Shipping!

This also makes things more fun!!!
B&M Hammer Console Mustang Ratchet Shifter - Automatic (94-04 GT, V6) 81001 - Free Shipping!
Don't fear the Gear Scottie! I would go with 4.10's if you have an auto, that will be the most beneficial set up. JSG has provided you with a good comparison we did a few months ago, check that out and let me know what you think!

We're here to help, let me know if you have any questions or need some assistance!

-Dan
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Old 01-21-2013, 08:36 PM   #8
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4.10s all day, had them on my 02 gt ran a 13.2 best
what mods did u have on the gt ?
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Old 01-21-2013, 09:07 PM   #9
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Auto with 4.10s is the best way to go, 5 speed with 4.10s is the even better way to go

stock: 2002 Mustang GT automatic - YouTube

4.10s with auto: 2002 Mustang GT Auto 4:10 - YouTube

4.10s with 5 speed 2002 Mustang GT 4.10 gears with all season tires.... - YouTube

PS look at my other videos to see what 4.10s can do against a 400hp pontiac....that was when I was with the auto, it shows how good they are off the line.
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Old 08-21-2013, 08:54 PM   #10
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I know this is an older thread but I'm looking for some advice on gears for my 96 GT. I have the basic bolt on goodies but I'm thinking of getting a set of gears for next years season (as I live in MI the car will be parked in the garage in about 2 months). Want to purchase them this winter as each year I gather parts for my spring mods, lol. The car is mostly stock as I said, but I want to increase the performance even more as I have found out gears are one of the best and most cost effective way to achieve even more performance. I'm leaning towards a 410 gear from ford racing from American Muscle, the entire kit. My car is not a daily driver and is rarely on the freeway so MPG is not a huge concern. I will most likely be changing out the stock clutch as well this coming spring since its original (17 years old and 70k miles) I am also looking for advice on the clutch. I'm not planning on doing much more to the car as far as power or a SC etc. Just looking to utilize the power I have the most efficient way possible while still maintaining a worry free cruiser and maybe some bigger burn outs along the way, lol. Thanks for any advice anyone can give me, I really appreciate it. Or if any of you out there have a similar year car and tell me what results you have seen with your gear upgrade? Thanks again.
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Old 08-22-2013, 04:52 PM   #11
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I'm new to the forum world but hope any insight I hope any insight I have helps. I have an 04 auto an love the 4.10s. A buddy of mine had 3.73 so I had a chance to drive it before I made my choice and just like what was said before the 4.10a make the auto fun. The car jumps out of the hole and chirps all the way thru third on DRs. Don't fear the gear! O and if it helps I got long tubes and plenum after the gear install and my Rpms on the interstate dropped from 3000 to 2700, running at 70mph. After tuning. So all in all as u continue to mod it all works out
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Old 08-22-2013, 05:08 PM   #12
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4.10's. only reason i went 3.73's (still love) is the fear of being to much with a supercharger
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Old 08-22-2013, 05:32 PM   #13
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I'm new to the forum world but hope any insight I hope any insight I have helps. I have an 04 auto an love the 4.10s. A buddy of mine had 3.73 so I had a chance to drive it before I made my choice and just like what was said before the 4.10a make the auto fun. The car jumps out of the hole and chirps all the way thru third on DRs. Don't fear the gear! O and if it helps I got long tubes and plenum after the gear install and my Rpms on the interstate dropped from 3000 to 2700, running at 70mph. After tuning. So all in all as u continue to mod it all works out
That's not gonna cause your rpms to drop
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Old 08-22-2013, 07:24 PM   #14
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If you are into roll racing the 4.10s will make you slower. 4.10s advantage is from a dig. Also you will be topping out at 110 or so depending on tire size.
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Old 08-22-2013, 07:44 PM   #15
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1lowgt ur prob right my only reason for thinking that is prior to the headers and tb plenum the engine was working harder with the gears as compared to when they were installed allowing for more air
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Old 08-22-2013, 08:55 PM   #16
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If you are into roll racing the 4.10s will make you slower. 4.10s advantage is from a dig. Also you will be topping out at 110 or so depending on tire size.
? I know a 95 cobra with 4.10s and he goes well over 110
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Old 08-22-2013, 09:02 PM   #17
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? I know a 95 cobra with 4.10s and he goes well over 110
We are talking about a new edge automatic not a 5.0 Cobra with a manual
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Old 08-22-2013, 09:03 PM   #18
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Thanks for all the advice and tips. I don't reach speeds over 110 often so that's not a concern. Looking for better 0-60 performance more than anything. More pop off the line.
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Old 08-22-2013, 09:25 PM   #19
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110 is not a max speed
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Old 08-22-2013, 10:41 PM   #20
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Will 4.10s give you that "sucked into the seat feeling" ?
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Old 08-22-2013, 10:55 PM   #21
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Will 4.10s give you that "sucked into the seat feeling" ?
Yea.
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Old 08-22-2013, 11:06 PM   #22
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How come no one speaks on 3.90s?
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Old 08-22-2013, 11:18 PM   #23
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How come no one speaks on 3.90s?
They tend to whine more than others
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Old 08-23-2013, 01:10 AM   #24
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110 is not a max speed
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Old 08-23-2013, 02:51 PM   #25
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110 is not a max speed
No but you don't want to go into OD full throttle or buh bye transmission.

Here is a good thread on 4.10s

http://www.moddedmustangs.com/forums...-my-4-10s.html
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Old 08-23-2013, 05:22 PM   #26
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Everyone with auto goes 4.10
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