4.10 or 3.73???
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4.10 or 3.73???
I'm thinking about changing my gears to either a 3.73 or a 4.10. What do you guys prefer and where could I get them?

mine1317- GT

- Number of posts: 137
Age: 23
Location: Rockville, MD
Registration date: 2011-03-06
Re: 4.10 or 3.73???
depends on the driving you do. If its a lot at 80+ then 3.73's
4.10s if its more stop and go.
Example at 80 in 3.73's you will be around 2800 with say a 26" tire
in 4.10 you will be 3100 or so
4.10s if its more stop and go.
Example at 80 in 3.73's you will be around 2800 with say a 26" tire
in 4.10 you will be 3100 or so
_________________
Black 05 Stang
Current Mods: ProLine Shortblock, TurboHorsepower Twin Turbo
Numbers: 15psi, 17* timing, 722rwhp 649 rwtq on a Mustang Dyno... when it's running...
Tuner: Frank Soldridge PSI Motorsports Inc.


TT_05_Stang- Admin

- Number of posts: 5227
Age: 36
Location: Arnold, MD
Registration date: 2007-12-07
Re: 4.10 or 3.73???
and your sig is HUGE
_________________
Black 05 Stang
Current Mods: ProLine Shortblock, TurboHorsepower Twin Turbo
Numbers: 15psi, 17* timing, 722rwhp 649 rwtq on a Mustang Dyno... when it's running...
Tuner: Frank Soldridge PSI Motorsports Inc.


TT_05_Stang- Admin

- Number of posts: 5227
Age: 36
Location: Arnold, MD
Registration date: 2007-12-07
Re: 4.10 or 3.73???
I (rather BobT) put 3.73s in my V6 with a positrac.
My highway speed is 80 miles before the RPM is so high that I feel uncomfortable maintaining the speed for too long, which is a good practical sustained top speed. A 4.10 would only piss me off on the highway due to the high rpm's.
For this reason, I would not go with a 4.10 for practicality reasons and the 3.73 has really improved the punch down low & into the mid-range, so is a great setup IMHO.
I got all my stuff through BobT and he did the install. Highly recommend Bob as he will ensure it is done right.
My highway speed is 80 miles before the RPM is so high that I feel uncomfortable maintaining the speed for too long, which is a good practical sustained top speed. A 4.10 would only piss me off on the highway due to the high rpm's.
For this reason, I would not go with a 4.10 for practicality reasons and the 3.73 has really improved the punch down low & into the mid-range, so is a great setup IMHO.
I got all my stuff through BobT and he did the install. Highly recommend Bob as he will ensure it is done right.

the_Pete- MACH 1

- Number of posts: 237
Age: 38
Location: Bethesda, MD
Registration date: 2011-01-07
Re: 4.10 or 3.73???
I had 4.10`s and switched out to 3.73`s. I would never switch back to the 4.10`s in my 09 GT. 1st was too low and 5th wasnt enough for me. Just my 2 cents.

BobT- BOSS

- Number of posts: 748
Age: 33
Location: Westminster
Registration date: 2009-05-07
Re: 4.10 or 3.73???
the_Pete wrote:I (rather BobT) put 3.73s in my V6 with a positrac.
My highway speed is 80 miles before the RPM is so high that I feel uncomfortable maintaining the speed for too long, which is a good practical sustained top speed. A 4.10 would only piss me off on the highway due to the high rpm's.
For this reason, I would not go with a 4.10 for practicality reasons and the 3.73 has really improved the punch down low & into the mid-range, so is a great setup IMHO.
I got all my stuff through BobT and he did the install. Highly recommend Bob as he will ensure it is done right.
Thanks Pete!

BobT- BOSS

- Number of posts: 748
Age: 33
Location: Westminster
Registration date: 2009-05-07
Re: 4.10 or 3.73???
TT_05_Stang wrote:and your sig is HUGE
That's what she said!

Lone Star- Super Charger

- Number of posts: 2006
Age: 40
Location: Arlington, VA
Registration date: 2009-12-28
Re: 4.10 or 3.73???
I have 3.73's in the 5.0 and love it! When I had the v6 my plan was to get the 8.8 rear with 3.73's.
Get BobT to do the install! Only man I would trust with my rearend
Get BobT to do the install! Only man I would trust with my rearend

Lone Star- Super Charger

- Number of posts: 2006
Age: 40
Location: Arlington, VA
Registration date: 2009-12-28
Re: 4.10 or 3.73???
I have the 4.10's, they are a little noisy, but I dont mind, if I had it to do over, I would go with changing over to an 8.8, word to the wise, dont upgrade the 7 inch rears gears, take it from some one that did, go ahead and get an 8.8, and I would split the difference and go with 3.90's.
As for installer, again, BobT, he did a great job on mine, and he is the only one I let work on my car besides myself.
As for installer, again, BobT, he did a great job on mine, and he is the only one I let work on my car besides myself.
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Eddie

Big Blue- Grand Poobah & Co-Founder

- Number of posts: 3979
Age: 53
Location: Eddie from Middle River Md {Baltimore area}
Registration date: 2007-09-19

Re: 4.10 or 3.73???
I have an 8.8 rear for sale,

zporta- Super Charger

- Number of posts: 4696
Age: 26
Location: HoCo MD
Registration date: 2008-11-04
Re: 4.10 or 3.73???
Bob put in my 3.73's. I love them. They pull like crazy.

StevB15- GT

- Number of posts: 96
Age: 39
Location: Ijamsville, MD
Registration date: 2010-07-01
Re: 4.10 or 3.73???
i had the same dilemma. i have the 4.10s and they pull like a mofo! love em. but then again i dont drive on the highway much... but i agree with ed, just look for a used 8.8 rear already with 3.55s or 373s or 4.10s in them. it might cost less then an entire gear install too.

RTW0223- SUPER SNAKE

- Number of posts: 1451
Age: 20
Location: Bel Air, MD
Registration date: 2008-10-19
Re: 4.10 or 3.73???
http://www.mustangcollective.com/showthread.php?t=4878
Man Hands?
Man Hands?
_________________
Black 05 Stang
Current Mods: ProLine Shortblock, TurboHorsepower Twin Turbo
Numbers: 15psi, 17* timing, 722rwhp 649 rwtq on a Mustang Dyno... when it's running...
Tuner: Frank Soldridge PSI Motorsports Inc.


TT_05_Stang- Admin

- Number of posts: 5227
Age: 36
Location: Arnold, MD
Registration date: 2007-12-07
Re: 4.10 or 3.73???
TT_05_Stang wrote:http://www.mustangcollective.com/showthread.php?t=4878
Man Hands?
would appear that wayBut that's Jenna's car the Bad Wolf! She has one of the fastest 4.0 v6's anywhere. runs 11's
http://myturbostang.com/

Lone Star- Super Charger

- Number of posts: 2006
Age: 40
Location: Arlington, VA
Registration date: 2009-12-28
Re: 4.10 or 3.73???
Its hot when Chics work on cars...
_________________
Black 05 Stang
Current Mods: ProLine Shortblock, TurboHorsepower Twin Turbo
Numbers: 15psi, 17* timing, 722rwhp 649 rwtq on a Mustang Dyno... when it's running...
Tuner: Frank Soldridge PSI Motorsports Inc.


TT_05_Stang- Admin

- Number of posts: 5227
Age: 36
Location: Arnold, MD
Registration date: 2007-12-07
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