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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

3.73s

  • Thread starter Thread starter Gunfighter
  • Start date Start date Mar 30, 2005
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Gunfighter

Founding Member
Nov 30, 1999
186
0
0
Grapevine, TX
Mar 30, 2005
#1
  • Mar 30, 2005
  • #1
I'm thinking about upgrading to the 3.73s. i know that w/a 5 spd. and 4.10s, first gear is pretty much useless. How about 1st w/3.73s. Are there any traction concerns w/stock rubber?
 
C

chimchim

New Member
May 14, 2004
267
0
0
PA
Mar 30, 2005
#2
  • Mar 30, 2005
  • #2
Gunfighter said:
I'm thinking about upgrading to the 3.73s. i know that w/a 5 spd. and 4.10s, first gear is pretty much useless. How about 1st w/3.73s. Are there any traction concerns w/stock rubber?
Click to expand...

Go here:
http://tchracing.com/tech/gearcalc....m&givenval=90&givenvaltype=MPH&selectedgear=5

I can go about 30 in 1st at about 5500RPMs. Not useless. 4.10's will put your motor at 4,000RPM's for the next gear. That should be about your torque peak RPM. I said they're perfect!!!
 

roti

Banned
Mar 30, 2005
13
0
0
Tampa
Mar 30, 2005
#3
  • Mar 30, 2005
  • #3
I know what you mean... I want to get the best I can, but I also don't want to burn this motor, even though it is EFI.

I want gears that give me the push, but I still want to run highway speeds over 80mph wihtout killing my motor minute by minute.

Hee Haw...
 
C

chimchim

New Member
May 14, 2004
267
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0
PA
Mar 30, 2005
#4
  • Mar 30, 2005
  • #4
5.0 Engine = 3.73
4.6 Engine = 4.10

Anything less, you're wasting your time and money and you are teh idiot.
 

Pughman

Member
Dec 25, 2004
295
2
18
in a galaxy far far away"MISSOURI"
Mar 31, 2005
#5
  • Mar 31, 2005
  • #5
my 3.73's suck ! get the 4.10's....
 

04GT

New Member
Oct 8, 2003
284
0
0
Southwest Ohio
Mar 31, 2005
#6
  • Mar 31, 2005
  • #6
I've had 4.10's for about a month now and they are great!

In bad weather, start out in 2nd and you get a smooth take off. Doesn't bog down like with 3.27 gear.

Definitely recommend the FRPP aluminum drive shaft, too. Had some vibration and noise with the stock shaft after 4.10 installation was completed.
 

propellerhead

New Member
Apr 13, 2004
1,541
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0
"but what's with the but shots?"
Mar 31, 2005
#7
  • Mar 31, 2005
  • #7
Pughman said:
my 3.73's suck ! get the 4.10's....
Click to expand...
I don't get this. Why do the 3.73s suck? Aren't they still much better than stock gears?

If stock gears is a '1', and 4.10s are a '10', where do 3.73s fit in?
 

Pughman

Member
Dec 25, 2004
295
2
18
in a galaxy far far away"MISSOURI"
Mar 31, 2005
#8
  • Mar 31, 2005
  • #8
propellerhead said:
I don't get this. Why do the 3.73s suck? Aren't they still much better than stock gears?
ya ! dont get me rong , the 3.73's are a "tad" better , but i have also had the 4.10's in the same car and the 4.10's are lots better ! the wife thought that 1st was to low and didnt like the 70mph. dron the 4.10's made, so the 3.73's got put in , she even says it dont run like the 4.10's did , but piss on it there in there now ...
Click to expand...
Click to expand...
 

csledd

Official Ovary Punching Member
Founding Member
Aug 18, 2001
1,115
1
0
Paducah, KY
Mar 31, 2005
#9
  • Mar 31, 2005
  • #9
what about gas mileage on 4.10s? I do a lot of interstate driving everyday. I don't want to pour a ton of gas money into this car (cuz I already do )
 

Pughman

Member
Dec 25, 2004
295
2
18
in a galaxy far far away"MISSOURI"
Mar 31, 2005
#10
  • Mar 31, 2005
  • #10
2 to 3 mpg down....
 

propellerhead

New Member
Apr 13, 2004
1,541
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0
"but what's with the but shots?"
Mar 31, 2005
#11
  • Mar 31, 2005
  • #11
Pughman said:
ya ! dont get me rong , the 3.73's are a "tad" better , but i have also had the 4.10's in the same car and the 4.10's are lots better ! the wife thought that 1st was to low and didnt like the 70mph. dron the 4.10's made, so the 3.73's got put in , she even says it dont run like the 4.10's did , but piss on it there in there now ...
Click to expand...
So, on a scale of 1 to 10.... if stock gears is a '1' and 4.10s are a '10, what would you rate 3.73s?
 

tontot77

Do I look like a :taco: in this picture?
Apr 2, 2003
409
0
16
Dyer Indiana
Mar 31, 2005
#12
  • Mar 31, 2005
  • #12
if you want some 3:73's for 40 bucks, pm me.
 

joshheat25

Member
Nov 8, 2004
871
0
16
Delaware
Mar 31, 2005
#13
  • Mar 31, 2005
  • #13
What about in an auto should i go 3.73's or 4.10's??
 

Beau

Founding Member
Jan 29, 2000
3,050
0
0
San Diego
Mar 31, 2005
#14
  • Mar 31, 2005
  • #14
joshheat25 said:
What about in an auto should i go 3.73's or 4.10's??
Click to expand...
4.10's for sure!

i have 3.73's in my cobra, but then again, i have a novi 2000 that will be installed this summer...
 

04GT

New Member
Oct 8, 2003
284
0
0
Southwest Ohio
Mar 31, 2005
#15
  • Mar 31, 2005
  • #15
christiesledd said:
what about gas mileage on 4.10s? I do a lot of interstate driving everyday. I don't want to pour a ton of gas money into this car (cuz I already do )
Click to expand...

So far, I'm getting less that 1 mpg difference. Not bad considering that I've been "testing".
 

squares98

Member
Aug 20, 2004
852
0
17
Orange,ca
Mar 31, 2005
#16
  • Mar 31, 2005
  • #16
my 3.73's are enjoyable with my new engine. with my old engine I wished for the power of 4.10's. But it isnt a problem anymore.
 

Pughman

Member
Dec 25, 2004
295
2
18
in a galaxy far far away"MISSOURI"
Mar 31, 2005
#17
  • Mar 31, 2005
  • #17
propellerhead said:
So, on a scale of 1 to 10.... if stock gears is a '1' and 4.10s are a '10, what would you rate 3.73s?
Click to expand...


you know i wish i would have went , stock , 3.73's , then to the 4.10's . but the way i did it ( stock to 4.10's ) it was a "BIG" jump , then back up to the 3.73's it almost felt stock to me so if i was to say rate 1 and 10 i'd go 4 or 5 ?. 3.73 are a good gear , but for me ( and thats a big one ,we all like other things) the 4.10's are lots nicer...
 

propellerhead

New Member
Apr 13, 2004
1,541
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0
"but what's with the but shots?"
Mar 31, 2005
#18
  • Mar 31, 2005
  • #18
Pughman said:
you know i wish i would have went , stock , 3.73's , then to the 4.10's . but the way i did it ( stock to 4.10's ) it was a "BIG" jump , then back up to the 3.73's it almost felt stock to me so if i was to say rate 1 and 10 i'd go 4 or 5 ?. 3.73 are a good gear , but for me ( and thats a big one ,we all like other things) the 4.10's are lots nicer...
Click to expand...
Ok. That gives me a better idea. So 3.73s are about halfway between stock and 4.10s.
 
X

XStanger

Founding Member
Sep 1, 2002
383
0
16
Mar 31, 2005
#19
  • Mar 31, 2005
  • #19
I love my 3.73's! They are all around a great gear. 1st gear is a little shorter, and I really like how it feels in 2nd and 3rd.
 

mrvax

Stay thirsty my friends
Founding Member
Nov 29, 1999
5,225
3
79
SN Moderator: Orlando, Fl.
Mar 31, 2005
#20
  • Mar 31, 2005
  • #20
chimchim said:
5.0 Engine = 3.73
4.6 Engine = 4.10

Anything less, you're wasting your time and money and you are teh idiot.
Click to expand...

Not true, young chimchim. Depends on your application. I am very glad I have 3.73's not only for the highway but I've been able to drive the car in snow and ice. 4.10s would have been too much.
 
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