Switching from 3.73's to 4.10's (worth it)

F

fastang96

Founding Member

Jun 9, 2000

91

0

0

Gate City VA

Dec 12, 2003

#1

• Dec 12, 2003

• #1

I've had 3.73's for over two years now. I've had a lot of people tell me to switch to 4.10's. I've also had alot of people tell me that the difference in performance wouldn't justify the cost . I can install them myself so it will cost me $140 (gears only). If it's not worth it, I can spend the money somewhere else.

 

Dark Knight GT

I can't get it up......ok that didn't sound right.

May 26, 2003

3,653

2

56

Ozark, Missouri

Dec 12, 2003

#2

• Dec 12, 2003

• #2

If youre staying n/a, then it would be worth the upgrade. If youre getting a supercharger in the future, you might want to stick with the 3.73's.

PS. If youre staying n/a and then decide to do the gear change, do it right. Go with 4.30's.

 

A

AROD357

New Member

Oct 9, 2003

56

0

0

Moreno Valley

Dec 12, 2003

#3

• Dec 12, 2003

• #3

I agree with Dark Knight if you are going to a gear swap 4.10 would be a noticeable difference but if you really wanted your car to come alive and keep it closer to your powerband I would go with 4.30 then your car would be killer...

 

fuzz

New Member

Jul 4, 2003

46

0

0

Arlington, VA

Dec 12, 2003

#4

• Dec 12, 2003

• #4

Isn't there something else that needs to be done when going to 4.10's? I thought I read that you have to upgrade something else and you can't just pop in the gear.

 

GreekStang85

Member

Jun 11, 2003

485

0

16

Dec 12, 2003

#5

• Dec 12, 2003

• #5

speedo recal

 

WRXracer

New Member

Feb 28, 2003

825

0

0

Dec 12, 2003

#6

• Dec 12, 2003

• #6

yeah

im changing my 373s to 430s..

 

F

fastang96

Founding Member

Jun 9, 2000

91

0

0

Gate City VA

Dec 12, 2003

#7

• Dec 12, 2003

• #7

Thanks for the replies. 4.30's....damn now that is a gear. How about traction with these. I have 17x9's with 255's on them so I have pretty good contact patch. This car is hardly ever ran at the track it's a daily driver though. So 4.30's would not be too much?

 

F

fastang96

Founding Member

Jun 9, 2000

91

0

0

Gate City VA

Dec 13, 2003

#8

• Dec 13, 2003

• #8

I'm still wanting more info please. Are they worth the change (3.73 to 4.10).

 

Wil

New Member

Jan 2, 2003

581

0

0

Burke, VA

Dec 13, 2003

#9

• Dec 13, 2003

• #9

If I remember correctly, 96-98 non-pi stangs shouldn't us 4.10's unless there cobras, I think someone last week said those year cars don't have a wide enough powerband for that gear ratio, you'll get to your powerband then quickly get off. 99+ is another story because of the pi heads, they allow the motor breath better at higher rpm. Correct me if am wrong. BTW, I wish I could change my own gears, I would switch to 4.10's in a heart beat b/c of what I've heard

 

Wil

New Member

Jan 2, 2003

581

0

0

Burke, VA

Dec 13, 2003

#10

• Dec 13, 2003

• #10

I just noticed your sig, sorry ignore what I just said. GO with 4.10's.

 

~B7~

New Member

Apr 2, 2003

369

0

0

TX

Dec 13, 2003

#11

• Dec 13, 2003

• #11

I would keep the 3.73s.

 

N

Nitro Lew

New Member

Aug 9, 2003

62

0

0

Hightstown N.J

Dec 13, 2003

#12

• Dec 13, 2003

• #12

Go with the 410 you will feel the differnce ! If it is a track car I would go with 430's . I have 373's and I'm switching to 410's or 430's . I allso have nitrous you can just go with a taller tire if you decide to go with a power adder .



Lew

 

KISSEL

New Member

Feb 7, 2003

122

0

0

Illinois

Dec 13, 2003

#13

• Dec 13, 2003

• #13

Yes, they are worth it. I also did the swap from 3.73 to the 4.10.
Let me put it to you this way, I should have gone with the 4.10's
in the first place. The problem now is that I want 4.30's

 

Dark Knight GT

I can't get it up......ok that didn't sound right.

May 26, 2003

3,653

2

56

Ozark, Missouri

Dec 13, 2003

#14

• Dec 13, 2003

• #14

If youre planning on staying n/a, anything less than 4.10 gears in a 99+ GT or pre99 GT with a headswap is a waste. JMHO.

If youre planning on racing frequently at the track, and possibly using sticky tires(slicks), then upgrading the rear end from a 28 spline setup to a 31 spline setup would be a good idea to do when switching gears. Afterall, you have to tear into the differential anyway to put in the gears. Not much more work to swap out the axles and differential for a 31 spline setup.

As for correction the speedo, if you have a five speed all you need is a speedcal. It can be purchased from www.brothersperformance.com cheaper than anyplace else Ive seen. If you have a automatic, you'll need either a chip or ECU flash.

Best places to shop for your rear end parts is either with Randy Stinchcomb at Liberty Ford in Maryland or www.stangstore.com

Good luck with your decision. I personally think you should go with 4.30's. Apparently, so does most of the other gusy who've posted.

 

aznzebra

New Member

Jul 17, 2003

77

0

0

waterloo, ontario

Dec 13, 2003

#15

• Dec 13, 2003

• #15

holy cow guys
woulnd't you be screaming on the highway with 410 gearing?
i wonder how it is for fuel efficiency.

im switching to a 99 GT in spring time, so I want to know if i should go 373 or 410

 

jadesville

the polarbear conservation corps protects a polarb

20+ Year Stangneter

Oct 8, 2003

2,189

0

47

Gresham, OR

Dec 13, 2003

#16

• Dec 13, 2003

• #16

aznzebra said:

holy cow guys
woulnd't you be screaming on the highway with 410 gearing?
i wonder how it is for fuel efficiency.

im switching to a 99 GT in spring time, so I want to know if i should go 373 or 410

Click to expand...

can you just imagine some of the people running 4.30's or 4.56's?

just like what they said, if your going SC you might wanna think about 3.73, N/A 4.10's, thats whats been recommended around here

 

aznzebra

New Member

Jul 17, 2003

77

0

0

waterloo, ontario

Dec 13, 2003

#17

• Dec 13, 2003

• #17

im worried about breaking loose on street tires. im not going to be going to the track or anything, so i wont b using slicks.

 

jadesville

the polarbear conservation corps protects a polarb

20+ Year Stangneter

Oct 8, 2003

2,189

0

47

Gresham, OR

Dec 13, 2003

#18

• Dec 13, 2003

• #18

aznzebra said:

im worried about breaking loose on street tires. im not going to be going to the track or anything, so i wont b using slicks.

Click to expand...

what tires do you have now?

 

aznzebra

New Member

Jul 17, 2003

77

0

0

waterloo, ontario

Dec 13, 2003

#19

• Dec 13, 2003

• #19

jadesville said:

what tires do you have now?

Click to expand...

I am not going to keep the wheels/tires i have on my v6

i will have to buy a new set when i get the GT

by that time im going with BFG drag radials,

the yokohamas i have on my v6 can't grip for ****,even with only 225tq, i still spun all the time.

 

jadesville

the polarbear conservation corps protects a polarb

20+ Year Stangneter

Oct 8, 2003

2,189

0

47

Gresham, OR

Dec 13, 2003

#20

• Dec 13, 2003

• #20

if you get drag radials, dont worry about breaking loose on the street then