Gearing...

Discussion in 'The Garage' started by snakebit97, Jun 8, 2007.

  1. Fets

    Fets Legend

    Messages:
    11,013
    Likes Received:
    2
    Joined:
    Jul 10, 2006
    4.56s
     
  2. riored96gt

    riored96gt Active Member

    Messages:
    851
    Likes Received:
    0
    Joined:
    Feb 17, 2007
    Location:
    SoCal 909
    3.73's

    22-23 around town (if I stay out of the throttle...)

    28-29 on the freeway at 80 with traffic

    125 MPH with no effort
     
  3. uncltrvlnmatt

    uncltrvlnmatt Legend

    Messages:
    14,939
    Likes Received:
    28
    Joined:
    Apr 8, 2006
    Location:
    Pa.
    When I was racing my 68GT I had 4:86's in it. It was to much gear. I would run out of engine just before the speedtraps. But my 60 foot times were friggin awsome.
     
  4. snakebit97

    snakebit97 New Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Dec 26, 2006
    I'm leaning toward 3:73's with what everyone is telling me. I talked to a guy the other day that has a 68 GT with a 5 speed, 3:73 gears and a crate engine pushing about 500 hp, he says he can pull 135mph in 4th with 5th gear left. I dont know, but thats what he told me. :dunno:
     
  5. scarface

    scarface Guest

    +! !!!
     
  6. ripper

    ripper Well-Known Member

    Messages:
    3,323
    Likes Received:
    0
    Joined:
    Jan 2, 2007
    4:10's. Tack lite set at 6200 and lites up at trap in 4th gear in 1/4 mile. Any higher and id be goin to 5th which would be very :lame:
     
  7. GreatPyr

    GreatPyr New Member

    Messages:
    6
    Likes Received:
    0
    Joined:
    May 6, 2006
    I have 4.10s and love them. It's the gear Ford should have put in these cars. My gas mileage increased when I went from 3.27s to 4.10s.
     
  8. Fets

    Fets Legend

    Messages:
    11,013
    Likes Received:
    2
    Joined:
    Jul 10, 2006
    Who cares about gas mileage. Your driving a mustang not a civic!
     
  9. FHATTCATT

    FHATTCATT New Member

    Messages:
    37
    Likes Received:
    0
    Joined:
    May 8, 2007
    +1

    I have driven Mustangs for 20 years and have never, not even once, tried to figure what kind of mileage I got....

    I have a '97 Cobra with a '97 block, 9.8 compression, Eaton w/ 2.9 pulley, full exhaust, and 4.10's. Dyno'd 462hp and over 500tq going to 315 BFG drag radials through those gears= big time fun!

    If you aren't going with forced induction anytime soon- my vote would be to go with 4.10's. I have never heard anone n/a with 4.10's wishing they had gone with 3.90's or 3.73's. But I have heard, and have also said myself, people say they wished they had gone with a steeper gear.
     
  10. snakebit97

    snakebit97 New Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Dec 26, 2006
    So if I go with 4:10's what will I need to order to recalibrate my speedo? Does it come in the gearing kit?
     
  11. scarface

    scarface Guest

    speedcal
     
  12. Fets

    Fets Legend

    Messages:
    11,013
    Likes Received:
    2
    Joined:
    Jul 10, 2006
    [​IMG]
     
  13. scarface

    scarface Guest

    lol...how does this apply?
     
  14. uncltrvlnmatt

    uncltrvlnmatt Legend

    Messages:
    14,939
    Likes Received:
    28
    Joined:
    Apr 8, 2006
    Location:
    Pa.
    Anything over 3:73's you need a speedcal.
     
  15. Schiffy

    Schiffy Well-Known Member

    Messages:
    2,468
    Likes Received:
    8
    Joined:
    Jun 13, 2007
    Location:
    Norfolk, Va
    I bought 3:90's for my '95(just go to the Motive website) i didn't look at gas mileage when i decided, i was thinking about where my power curve was atm and where i started to drop off... i'll get a good jump, and the 3:90's will keep me in the perfect RPM through the 1/4 ;10, 4mile. i don't care much for anything past 1320. but thats just me, and i've got the 5.0. most everyone i know running around with a mod car has either 4:10, 4:30 or 4:56. i've got a buddy with H/C/I '04 GT with 3:73's and he swears by then, then i've got a friend with a Nitrous '97 Cobra running around with 4:56's and he swears by them. so you need to figure out what you need, and why. THEN decide on the gearing.
     
  16. Fets

    Fets Legend

    Messages:
    11,013
    Likes Received:
    2
    Joined:
    Jul 10, 2006
    Take the chance with the lower gear! lol I dunno, I just wnated to use the pic
     
  17. scarface

    scarface Guest

    lol..nice.
     
  18. snakebit97

    snakebit97 New Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Dec 26, 2006
    I definately got more than I bargained for on this question. This is like talking politics and religion...everyone has an opinion.
    Has got me thinking thats for sure. I was leaning toward 3:73's, now I'm leaning toward 4:10's.
    I dont think I could go wrong with any of the gears mentioned, they all have an advantage over what I'm running now.