3.45 vs 3.55 vs 4.10???

Discussion in 'SN95 V6 Mustang Tech' started by Mach428, Dec 8, 2003.

  1. Mach428

    Mach428 New Member

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    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?
     
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  2. tire

    tire New Member

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    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)
     
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  3. atlblue2000

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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.
     
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  4. AP1995V6

    AP1995V6 Member

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    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.
     
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  5. Mach428

    Mach428 New Member

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    opps sorry my mistake, ment 3.73 not 3.55
     
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  6. SpectorV

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    4.10 for auto 3.73 for manual thats ALL you need to know
     
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  7. tire

    tire New Member

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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?
     
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  8. Jarrell

    Jarrell New Member

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    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.
     
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  9. 5-SpeedStallion

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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?
     
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  10. Katmandu

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  11. tire

    tire New Member

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    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.
     
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  12. ganador01

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    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...
     
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  13. Hondaboy

    Hondaboy Banned

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    Good Advice. Get the 8.8 rear. Then throw some 4.10's on there and never look back. :nice: Thats what I have on my 98 Auto but I am hardly ever on highways.
     
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  14. decoy562

    decoy562 New Member

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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.
     
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  15. Jamez

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    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.
     
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  16. SpectorV

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    dallas speed cal + auto = not work right
     
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  17. BABstangV6

    BABstangV6 Smater than the average bear!

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