3.45 vs 3.55 vs 4.10???

Mach428

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Dec 7, 2003

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#1

• Dec 7, 2003

• #1

3.45 vs 3.73 vs 4.10???

I have a 2000 mustang V6 auto, I was wondering what opinions anyone had on each of the gears listed above. I still need to drive my car on the highway, its my daily driver. Any opinions for this next mod?

 

T

tire

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Dec 4, 2003

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#2

• Dec 7, 2003

• #2

3.45's, 3.73's, and 4.10's are available for the 7.5 rear end, which is what you have. 3.55's are only available for the 8.8 rear.

If you are concerned with highway gas mileage a LOT, get 3.73's. If you don't mind getting ~22-24 mpg or so highway then get 4.10's.

(I have 4.10's in my 5 spd, which is as high as I'd like to go with the amount of hwy driving I do)

 

A

atlblue2000

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#3

• Dec 7, 2003

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V6powerstang...what kind of rpms are you turning with those 4.10s @ say, 80 mph?? Just curious b/c I've got a 5 spd, too.

 

AP1995V6

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Jul 13, 2003

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Oxford, MS

Dec 8, 2003

#4

• Dec 8, 2003

• #4

Damn, 4.10s in a manual? I hate driving through town in that.

I'd get a 8.8" rearend with 3.73 that way it leaves some room incase you get blown or add some serious power down the road.

 

Mach428

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#5

• Dec 8, 2003

• #5

opps sorry my mistake, ment 3.73 not 3.55

 

S

SpectorV

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#6

• Dec 8, 2003

• #6

4.10 for auto 3.73 for manual thats ALL you need to know

 

T

tire

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• Dec 8, 2003

• #7

atlblue2000 said:

V6powerstang...what kind of rpms are you turning with those 4.10s @ say, 80 mph?? Just curious b/c I've got a 5 spd, too.

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well, i'm at 2,500rpms by 68mph exactly, but i'd have to say about 3,000 for 80mph.

as to the power adder statement... i barely shift into 4th in the quarter mile, so i have PLENTY of room to grow. especially with slicks and a good launch it'll cut down mph and never have to worry about topping fourth anyways. where'd you get that from, anyways?

 

J

Jarrell

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Dec 9, 2003

#8

• Dec 9, 2003

• #8

It's all about the 4.10's.
But I would suggest traction lock and mabey a 8.8 rear before u mess with the crappy 7.5.

 

5-SpeedStallion

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Dec 10, 2003

#9

• Dec 10, 2003

• #9

V6PowerStang said:

well, i'm at 2,500rpms by 68mph exactly, but i'd have to say about 3,000 for 80mph.

as to the power adder statement... i barely shift into 4th in the quarter mile, so i have PLENTY of room to grow. especially with slicks and a good launch it'll cut down mph and never have to worry about topping fourth anyways. where'd you get that from, anyways?

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What year car do you have??? Because in my car, I am slightly past redline in 3rd @ the end of the 1/4 and I have stock gears. Any more power and I'll be shifting 4th in the 1/4 and you're doing the same with 3.73's??? This all is based on my understanding of the word 'barely' though. Your barely may not be mine. Anyway... what year?

 

Katmandu

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#10

• Dec 11, 2003

• #10

http://reviews.stangnet.com/Drivetrain/

 

T

tire

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#11

• Dec 11, 2003

• #11

i'm sorry, i don't recollect exactly where i was at when i finish the 1/4 mi.

i have a 2000 v6 5spd.

 

ganador01

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Jan 21, 2002

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Dec 11, 2003

#12

• Dec 11, 2003

• #12

I got 4.10s in my 97 4r70w and its close to the same. I do hit overdrive in the quarter so i lose quite a bit of time there...a manual would actualy be a lot better in this case if you ask me, even with the excessive shifting. in overdrive im at 2500 rpms at about 65-70 mph...my speedo actually reads a little slower then im actually going so im never quite sure...i got that damn speedcal from dallasmustang but they didn't tune it for the aftermarket 23 tooth speedo i had already stuck in with the 4.10 gears...but then again, i don't know how to set it right either. at least im getting less miles and not more...

 

H

Hondaboy

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#13

• Dec 12, 2003

• #13

Jarrell said:

It's all about the 4.10's.
But I would suggest traction lock and mabey a 8.8 rear before u mess with the crappy 7.5.

Click to expand...

Good Advice. Get the 8.8 rear. Then throw some 4.10's on there and never look back. Thats what I have on my 98 Auto but I am hardly ever on highways.

 

decoy562

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Dec 12, 2003

#14

• Dec 12, 2003

• #14

SpectorV said:

4.10 for auto 3.73 for manual thats ALL you need to know

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3.73's for manual if you do alot of highway or the car will be blown, otherwise 4.10 is fine for the manual.

 

J

Jamez

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Dec 12, 2003

#15

• Dec 12, 2003

• #15

I think gearing is different for us pre99s cause the others already have 3.27's which aren't too bad. If yer lookin for a compromise I'd go 3.73 which is pretty much the same difference as when I went to 3.27 and I still get the same mileage as before give or take 1mpg and much better acceleration.

 

S

SpectorV

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Dec 12, 2003

#16

• Dec 12, 2003

• #16

dallas speed cal + auto = not work right

 

BABstangV6

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Dec 12, 2003

#17

• Dec 12, 2003

• #17

I have heard some cobra guys going higher then 4.10's? Is that because they have a six speed?